After selling my EVScope recently - you can read more about that choice below - I sold a few other items and wound up with a nice chunk of change. I started feeling a familiar temptation, one I've described often in these pages. Should I buy a big telescope that, yes, wouldn't cool down quickly enough to use outside of summer, and yes, might struggle with dew or collimation, but - but! - if conditions were just right, could show me more of the universe than my refractors currently reveal?
One option after another came to mind as I struggled to settle my one-year-old at night, and one after another I knocked them down. Visions of what I might see with a much bigger telescope clashed with visions of that telescope gathering dust in my closet while I walked out the door with another small refractor. The truth is, I have to walk too far and observe too quickly for anything other than a refractor to make much sense (except perhaps a Hubble Optics reflector, but I worried about setup time).
In the end, I decided to double down on what I already have, and add a little variety to my refractor lineup. I really wanted a telescope that's even more portable than my TV-85, for nights I'm feeling tired, want to go further afield, or don't have enough faith in the atmosphere to haul out a bigger instrument. And I wanted a refractor that's a little better in red wavelengths than my FC-100DC, and maybe just a bit more attuned to planetary observation. No major leaps, then, but a bit more versatility and a bit more variety.
My first purchase was a Takahashi FS-60Q. I found what seemed like a good deal and couldn't resist pulling the trigger. The 60Q screws in half, so it fits neatly in a small backpack with my VAMO traveler mount. It even comes in two formats: a tiny, do-everything version with a very short or "fast" focal ratio, and a long "Q" version that's "slower" and has much better color correction. That's the version I'll use - screwed in half, as I carry it on my back.
When the telescope arrived, the optics were in perfect shape but the body had a couple tiny nicks - imperceptible at first glance - and the dust cap didn't fit quite as snugly as I'm sure it once did. What's worse, I quickly found that I needed a long list of expensive accessories to actually use the telescope. After a couple weeks and a lot of headaches, I finally had everything assembled and ready to go. It was a cold night with below-average seeing: exactly the kind of evening that didn't seem to justify dragging out a bigger telescope. The weight of my whole setup was almost laughably light as I excited my building; I could barely feel it at all. I could get used to that . . . .
I found that same spot next to the church where I'd set up my APM a week or so ago. It took me just a couple minutes to unpack my gear, although I have to say: screwing the little telescope together is an extra step that can be a bit awkward in the dark. The sounds of traffic were also a little too close for my liking, and I wished I had walked on down to our nearby park. Yet it was late, and this was so much better than nothing.
Mars was now right at opposition, and wow did it even look big - even through the little telescope. To my delight, both dark albedo features and the south polar ice cap were immediately obvious on the planet, and the seeing didn't seem that much worse than average (owing, perhaps, to the smaller aperture of the telescope). I could make out Mare Cimmerium, clear as day, and I think maybe - just maybe - the long, thin outline of Hyblaeus. The Curiosity rover, the Insight lander, and even Viking 2 were all in the picture, in a more or less vertical line across the planet.
After about half an hour of ogling, I packed up. The view was much dimmer than it is through my bigger refractors, but the detail I could make out was truly impressive for such a little telescope. The one drawback: I can't reach focus with any of my Delos eyepieces using the telescope. I suppose that's okay; they're really too heavy for a really portable setup.
Then, last night, I returned to the church with my FC-100DC. Atmospheric seeing promised to be better than average, but it was immediately obvious from the halos around streetlights that transparency would be anything but. This time, I nearly convinced myself to keep walking to the park, but again it was cold, I was tired, and I wanted to go to bed on time. What a joy it's been to observe Mars high in the sky in the evening, rather than the (painfully) early morning!
Strangely, I happened across much the same region of Mars. While the planet was a good deal brighter than it had appeared through the FS-60Q, the transparency was so bad that I spotted only the tiniest hints of additional detail (usually, it's the seeing that limits planetary observation). Once again, I enjoyed the view for about half an hour, watched a deer walk daintily across the sidewalk, and then packed up. Hard to believe that I can now get six hours of sleep after observing Mars!
Opposition! What a word, for Mars observers. Earth is directly between Mars and the Sun in exactly one week, and it's in a part of Mars's orbit that takes it especially close to our planet. We won't get a view like this for 15 years or so, and we haven't had one like it since 2003. Technically, Mars was a little closer in 2018, but as I recall it didn't get very high above the horizon then for Northern Hemisphere observers, and a global dust storm - more likely when Mars is relatively close to the Sun - thoroughly spoiled the view. At the time, my telescopes showed only a fuzzy orange ball, with just the faintest hint of dark albedo features (and that was probably my imagination). I resolved then to be ready for 2020, and I certainly have been. This week, I explored the planet with my Takahashi FC-100DC and APM 140, and wow: what a view.
I should begin by saying that I also observed Mars in single-digit (Celsius!) weather on the morning of September 22nd, but also the seeing was forecast to be average, the transparency of the atmosphere left much to be desired. There were odd halos around everything: street lamps, the Moon, and certainly Mars. I could only make out four stars in the Trapezium with the APM, and albedo features didn't pop on Mars as they can when the atmosphere is stable and clear.
When the sky cleared again on October 4th, I decided to take my 4" Takahashi to the field. Mars rises early enough now for me to step out in the late evening - just before midnight - which typically allows me to sleep more restfully (albeit still for only four or so hours). This time, transparency was a whole lot better, but seeing was about the same: not terrible, but by no means good.
Albedo features were stark and obvious on the planet, however, and I wished I'd taken a sketch pad. I was unhappy with the iPhone drawings I attempted to take on other nights, so I opted not to draw one of those - maybe a mistake, but it did give me more time to drink in the view at the eyepiece. The Moon had a hint of that "watery" look it can take on when the seeing is mediocre, but still: I had a nice long look at Mare Crisium at lunar sunset. Jupiter and Saturn had long since set, and I had a pang of sadness: I'm unlikely to observe them for a good long while. Mars will make up for it!
Then, tonight, the seeing promised to be above average. I'd hoped to observe in the evening again, but unexpected clouds ruined that plan. By 3 AM the sky had cleared, and out I walked with my APM 140. To my alarm, Mars was already lower in the sky than I'd anticipated, and I feared it would be lower still by the time I arrived in my preferred observing site. I hadn't walked far when I noticed a dark alcove beside a church I frequent, and it occurred to me that it would afford a great view of the southern sky. So, I abandoned the field I normally visit for that alcove: a high risk gambit, since the field is a sure thing and it seemed entirely possible that there might be currents from nearby buildings to ruin this spot. Worse: the church is right next to the National Cathedral, and I worried: could security kick me from the grounds?
But no, this time it all worked out. I found a nice corner to settle down, and when I turned the APM to Mars it was full of wonderful detail. The entire southern hemisphere of the planet seemed dark, relative to the rest, with spectacular, linear features that helped me realize how nineteenth-century observers could have imagined a network of canals on the planet. The south polar cap was remarkably bright and clearly defined, and I could just - just - make out the white clouds of the north polar hood on the limb of the planet.
Mars reaches its closet approach to Earth next Tuesday at 10 AM EST: a scant 62,069,570 kilometers (by astronomical standards, a stone's throw). It was quite strange to see the planet so big and bright, entirely illuminated by the Sun. I felt it was almost too bright for the APM, strangely enough, at least at 217x (the highest magnification I felt I could use with a manual mount). Still: what an unforgettable view.
The waning Moon was nearly at zenith, and in good seeing it also provided a spectacular view. Yet because I wanted to keep switching to Mars, I didn't adjust the height of the tripod - and that made for a very uncomfortable lunar viewing experience (painful, in fact, because of a worsening neck and back injury). I captured some quick pictures without being able to fully stabilize my old phone, and they actually turned out a bit better than I'd hoped. A testament to the capabilities of the APM in an accommodating atmosphere.
By next week we will be on the downswing of this year's opposition, and it already saddens me to think how long it will be before we have a similar view. What will the world look like then? With how quickly things seem to be changing - often, it appears, for the worse - it seems impossible to guess. With any luck, I'll still have this blog - and I'll still have a telescope as good as the APM 140.
To say I was tired after my last morning out is an understatement. There's nothing like 16 straight hours of work and childcare after a three hour night's sleep. Yet when the forecast called for better-than-average seeing and transparency on another clear morning, I had to go out again. After all, it'll be a while before Mars looks this good. This time, however, I took my Takahashi FC-100 DC and my lightest tripod; I was still a little sore from hauling the APM.
Conditions were just about the same this morning as they had been on the sixth, and that provided a nice opportunity to test how close the view through a good 4-inch refractor can get to that of a 5.5-inch (the APM). In a word (okay two words): pretty close! The Moon dazzled with detail, although I definitely saw finer features - especially those rilles - with the APM. Mars was wonderfully clear, with dark albedo features obvious but maybe a bit less dark than they had been through the APM, and the south polar ice cap much dimmer. Orion and the Trapezium were wonderful, but I could only clearly see four stars in the Trapezium - with a hint of the fifth, "F" star. You could drive a truck between Rigel A and B, but maybe a slightly smaller truck than you could with the APM. The Takahashi is just a fantastic telescope.
I set out to observe Mars, and indeed I observed the planet for a good long time. Two years ago, during the last opposition, I dreamed of exactly the views I've had this year. Once again, I tried sketching the view on my phone, but it's become clear that I've reached the limit of what's possible with that technique. Next time, I'll bring sketchpad - but still, it's nice to know what I've seen.
I found that the steady atmosphere easily permitted a magnification of around 250x, which is rare in these parts - and better than I enjoyed on the sixth. Although I spent a lot of time on Mars, I found I kept returning to the Moon. There's nothing like the gloriously detailed lunar views a fine refractor can reveal in good seeing. Features visible around the terminator were especially interesting tonight, with plenty of tiny craters glinting at local sunset, and some really interesting, rectilinear scarps (or so I decided; I'll have to look this up later).
So, another great morning - but it'll take me a few days to recover this time.
The weather has been stormy over the past few weeks, but this morning the clouds cleared and the seeing promised to be good. I woke up at 2:45 AM and walked out the door by 3:20, hauling my APM 140. As I reached my local park, it dawned on me that conditions were essentially perfect. The sky was wonderfully transparent, the temperature was perfect, and there was a thin misting of dew on the ground. The rabbits and fireflies that used to give the park such a magical air, however, have largely disappeared (for now).
It was a special morning for more than one reason. The Moon had just passed in front (occulted) Mars, and the two worlds were still right next to each other in the night sky. It was a stunning sight as I set up the APM. Then, when I wheeled the big telescope around to have a look at the Moon, I was just floored by the spectacular, razor-sharp detail. Rilles and craterlets snapped into view as I've never seen them, and I thought I could actually pick up gradations of color on a Moon that has always looked monochrome to me.
It was easy to get lost in that view, but I had a job to do: observe Mars as it approaches opposition. Now, it's around five weeks away - hard to believe! - and wow does the planet look big and bright. The APM revealed it in spectacular detail, with Syrtis Major huge and dark on the planet's surface, arcing north from a south polar cap that now seems small (but bright), with Nodus Alcyonius obvious nearby. It was easily the best view of Mars I've had. By 4 AM the view softened a bit, as a turbulence entered our terrestrial atmosphere. I think I noticed a hint of the planet's rotation between 3:45 and 4:45 AM; Syrtis Major seemed just a bit offset from where it was when I set up.
I knew my iPhone would never capture even a half-decent image of the view, and I kicked myself for not bringing a sketching pad. Still, I have an app called "Paper" on my phone, and I used that to quickly just down what I could easily see. An enormous amount of detail is missing, of course, including many subtle grays south of Syrtis Major. Yet I'm hopeful that I'll get better at this, and I could tell that it helped me observe more closely and carefully.
By 4:30 AM or so, the highlights of the winter sky had climbed above the horizon. Of course, I had to have a look at Orion. To my surprise, six stars were visible in the Trapezium - a first for me, if memory serves. Through the APM, the nebula looked about as impressive near the light-polluted horizon as it does while near zenith with my Takahashi (or maybe even a little better). Rigel B was much easier to spot than I can remember, and the Pleiades were just spectacular. Venus, also rising in the east, was lost in atmospheric turbulence. But still, I observed its half-disk for a minute or so.
I've praised it before in this space, but wow - I cannot say enough about this APM refractor. There are times when I've fantasized about selling all my gear in exchange for an Astro-Physics refractor - something truly high-end. Yet I just can't see how the APM can be improved. I see less false color with the APM than I do with the Takahashi - even with the Takahashi's focal extender screwed in - and the detail, contrast, and color I can see on planets is just otherworldly (sorry). Bright deep space objects are a joy to observe, and the every last detail on the telescope - from the focuser to the dew shield - is a pleasure to use. Like my TV-85, there's something magical about this telescope. It's a true keeper.
Also deserving of praise: TeleVue Delos eyepieces. They are, without doubt, the best I've used in terms of clarity, contrast, and comfort for my eye. Maybe I'll get another come Christmas.
We're less than two months away from Mars reaching opposition, and the red planet is getting awfully bright in the morning sky. Its apparent size is getting pretty big, too, and there are - as yet - no signs of the planetary dust storm that made it so much harder to see details on the planet during its last opposition, in 2018. Now is the time to observe Mars, and with that in mind I dragged my APM 140 out of the apartment and down to the park at 3:30 this morning.
Wispy cirrus clouds were starting to advance from the west as I set up my telescope, and there was an odd haze in the air. Street lamps were surrounded with halos that took on an odd fractal pattern I'm not sure I've seen before. After I started observing, I noticed the same thing around Mars.
Oh well! The planet was spectacular nonetheless. The clouds that constitute its south polar hood appear to have broken up as the southern hemisphere enters summer, and the ice cap - now clearly visible - seems quite small. I could plainly make out an an intricate latticework of dark albedo markings stretching up from the pole, covering maybe half the planet's surface. Tonight, the atmosphere allowed me to reach around 170x before the view got a little mushy, and at that magnification the planet is still quite small. Easily big enough, however, to discern a whole lot of detail.
Venus had climbed fairly high above the horizon by around 4 AM, and wow did it look weird with the naked eye: squashed into a fat little triangle by those strange atmospheric conditions. It was hazy and painfully bright through the telescope, though still satisfying to see the planet, from our perspective halfway illuminated. I thought I could make out some detail in the planet's clouds around its terminator, near the equator, but seeing was bad enough to make me question that observation.
The Pleiades, meanwhile, had also wheeled into view, and I had my first look at them with the APM. Naturally the view was brighter than I've had before, though I wished for a wide field eyepiece - I'd left my 55mm Plossl at home - and the seeing was bad enough to mar the view ever so slightly. Still an impressive sight, however.
Once again, telescope, mount, and tripod all functioned exceptionally well. I'm impressed at how easily the lightweight AYO II handles the big refractor when everything is properly balanced. Bizarrely, the telescope handles more smoothly and easily than the Takahashi FC-100DC on the same mount - or maybe it just seems that way, since it takes a little more effort to use the smaller telescope's focuser (it's one-speed only). Certainly the APM is my favorite telescope to use, with the little TeleVue a close second (it would be first, but that big aperture is hard to resist).
After two weeks of rainy, stormy weather, the skies cleared over the last two nights, and seeing conditions were, remarkably, better than average. On the evening of the eighth, I marched out of our apartment with my Takahashi, focal extender installed, to have a good look at Saturn and Jupiter. Both are now fairly high in the evening sky, beginning at around 9:00.
After a fifteen-minute walk to my favorite park, I was ready to go. Jupiter, it turned out, was a little disappointing. I did manage to catch some tantalizing glimpses of complex details in the planet's belts, including one enormous ruddy patch in the north equatorial belt. But, on the whole, the colors and contrast were a little muted from what they can be. Atmospheric transparency was a little lower than average, I thought, so maybe that was to blame. Or maybe the APM 140 has spoiled me.
When I switched over to Saturn, however, I was rewarded with one of my best-ever views of the planet. The Cassini Division stood out sharply along the entire ring system, and the thin black shadows visible behind the rings and on the rings, behind the western limb of the planet, were perfectly crisp. I thought I could make out no fewer than two grayish cloud belts - normally, I can clearly see just one. I admired the beautiful planet for a good long time before packing up and heading home.
Then, on the morning of the 10th, I set out at 3:30 AM to observe the Moon and Mars. It's amazing what we do to ourselves, as amateur astronomers, to pursue our passion. I can never sleep well when I know I'll have to observe in the early morning, and on this night I'd had maybe a couple hours of sleep. Would it be worth it?
As I left my building and set out for the park with the Takahashi, I noticed two things. First: the Moon and Mars were really high in the sky! Second: there was space in my building's illuminated "back yard" (as my daughter calls it) to set up the telescope. Why wouldn't I just do that and save myself the walk? I was awfully tired, after all.
I went for it, and I can't recall making a more disastrous observing decision. After seeing up in one corner of the area, the sprinklers, which had been silent, suddenly started up exactly where I was sitting. In a panic, I grabbed what I could and rushed to another part of the yard. Nothing was damaged, but my eyepiece - a TeleVue Delos - did fog up completely. Ugh. Now I was forced to set up directly under no fewer than four bright lanterns. Maybe it wouldn't matter, I tried to convince myself.
Oh, it would. Stray light kept entering the eyepiece, spoiling the view with ghostly reflections. Both Mars and the Moon also had a halo that's not usually there - partly because of the mist rising from the sprinklers, I decided. I also decided that stray light washed out some of the contrast on Mars. And what a pity, because a look at the Moon quickly convinced me that seeing was as good as it has been all year. I'm certain I made out at least a couple craterlets in the crater Plato - a sure sign of excellent seeing (and an excellent telescope).
Mars was disappointing, only because it was so obvious to me that I would have seen far more had I just walked to that park. Still, dark albedo markings repeatedly shimmered into view, and the southern polar cap was obvious - if a good deal smaller than it had been earlier in the year (or have the bright clouds that make up the southern polar hood dissipated?).
Then the sprinklers turned on near me - it turns out I hadn't escaped them entirely. Why not soak pavement during the entire night? It's not like we're in an ecological crisis or anything. Once again I packed up, this time for good. All in all I was happy to have had a good look at the Moon, and grateful for the lesson - don't use the backyard! - well in advance of Mars's opposition this year. Still, after sacrificing so much sleep I had hoped for a better view of Mars. Next time!
This weekend, we travelled to the Shenandoah Mountains with our "bubble family" for a much-needed getaway from Washington, DC. It took a little negotiation - even a short trip with kids requires a lot of luggage - but I eventually received authorization to stow a telescope in the trunk. There wasn't much room, so the telescope had to be small, and that left two options: the TV 85 or the Takahashi FC-100DC. I decided I wanted the extra reach of the Takahashi, so I unscrewed its focal extender - shortening and lightening it - and then found a way to make it fit with my lightest tripod.
To my delight, our cottage turned out to have two balconies, both isolated from surrounding houses, and was just enough of a clearing in the trees to reveal a part of the night sky. That part, I soon realized, could not have been better placed: it would reveal the Ring Nebula and the Hercules Globular Cluster in the evening, and the Andromeda and Triangulum galaxies in the morning. Even better: the forecast called for clear skies on both nights we were there. What are the odds?
On the first night, I stepped directly from my bedroom to the cottage's narrow, second-floor balcony. The air was alive with the squawking of birds and the buzzing of bugs. Luckily I brought plenty of mosquito repellant - although it was hard to forget about the legions of spiders spinning webs just overhead - and wow: what a night sky! Bortle 4, by one classification scheme; yellow or maybe green by another. It was, admittedly, not perfectly dark, but to this city slicker it was nothing short of a revelation. It's been so long since I've seen the Milky Way - but there it was, clearly visible. There were in fact so many stars that it was hard, for a moment, to pick out the constellations! Oh, what I've been missing in DC.
To my surprise, Jupiter and Saturn both turned out to be high enough to view from the upstairs balcony. Saturn was beautiful, but I've had better views from the city. Jupiter, by contrast, was so clear and full of contrast - and, lucky me, I had tuned in just on time to see another shadow transit! To think that I'd never seen one before this month. Callisto, it turned out, had just finished traversing the planet, and its shadow was still in the clouds. The shadow seemed a bit more distinct - a bit more clearly round - than it had been on the surface of Jupiter with the APM 140 on the 10th, but I found I couldn't increase the magnification beyond 123x without the view breaking down. To my surprise, I also found that a new Delos 6mm eyepiece presented a clearly better view than my trusty Nagler 3-6mm zoom.
Next, it was off to deep space. It has literally been decades since I had a telescope under a reasonably dark sky, and so it was such a pleasure to simply trawl through the Milky Way at low magnification, admiring the knots and clusters of random stars. Every patch of the galaxy, every view, resembled an open cluster from urban skies. Incredible.
There are, I realized, deep space objects that look better under dark skies - that is, more of the same - and those that look different. The Ring Nebula, I realized when I finally look that way, mostly looks better. I could easily make out a ring without using averted vision, which I can't do with anything smaller than the APM 140 in DC. Yet I could also make out subtle nebulosity within the ring - a first for me - and the ring didn't look quite as round as it seems in the city. The Hercules Cluster, however, looked completely different: less a fuzzy ball and more an explosion of innumerable stars, textured and complex right down towards the center of the cluster. When I saw textured, I mean it was almost as though someone had sprinkled especially dense clumps of glitter haphazardly over a page already covered with a thinner dusting. An unforgettable sight.
On the following night, I decided to sneak out in the morning, this time on the bigger, first-floor balcony so I could see more of the sky. I never have much time with how little my son sleeps, but I hoped to get a good view of two huge deep space objects whose surface brightness is just too low for urban skies - the Andromeda and Triangulum galaxies - before catching a glimpse of Mars.
Andromeda was impressive: a bright, fuzzy nucleus (of course) and a subtle but immense disk, stretching out of view even at 25x. I thought that maybe - just maybe - I could make out a dust lane after around 15 minutes of peering, but that might have been my imagination. At last I tore myself away from the view and started scanning for the Triangulum Galaxy, which I've never managed to spot before. After about 15 minutes I tracked it down, and wow - was it ever subtle. I could make out its pinwheel shape using averted vision, and that was incredibly special to me.
At last, Mars became impossible to ignore. Snapping in the 6mm Delos I was treated to an absolutely spectacular view of the planet at 123x, featuring that southern ice cap, of course, surrounded by a ring of remarkably dark dunes, and the unmistakable peninsula of Syrtis Major Planum. I have never had such a detailed view of Syrtis Major, and what timing: the Perseverance rover will soon blast off to land at Jezero crater on the border of the region. To be honest, this view alone exceeded my wildest hopes for the Mars opposition of 2020. Amazing to think that the planet will only seem bigger over the next few months!
Yet just as on the previous night, although the view was full of contrast at 123x it broke down when I pushed the magnification much further. I had high hopes for 185x with the Nagler Zoom, but no dice. After a while, it was time to pack up. I was sorely tempted to look at the Pleiades, then just wheeling into view, but I had to be ready in case my son woke up. I couldn't complain, of course; together, both nights were nothing short of unforgettable. I now know: there's nothing better than a fine telescope under dark skies.
With regards to the rest of my setup, I was really impressed with a new purchase: that 6mm Delos eyepiece. Beautiful contrast, incredibly easy on the eyes, and a nice field of view. The 30mm TeleVue Plössl was less impressive - actually, it's long been my least favorite eyepiece in my Plössl collection. Stars seem a little stretched out away from the center of the eyepiece; at first, it's like they're not quite in focus, and then, towards the edge of the view, they stretch out into miniature arcs. I think I might need another kind of eyepiece for beautiful wide-field views under dark skies.
All in all, a memorable trip, and a welcome relief from these COVID times.
The good times keep coming! Another clear morning, with average seeing and above-average transparency. Astronomy and my toddler have been costing me sleep recently, and deep down I knew it wasn't a good idea to head out in the wee hours again. Yet there I was, waking up at 2:30 AM, gulping down four cups of coffee, and slipping out the door with three big bags. My cat watched me go with a knowing look.
When I got outside, the night seemed nearly perfect. Not a single cloud in the sky - now that's rare - and the stars seemed remarkably steady. Mars was a brilliant red near the half-Moon; it's getting noticeably brighter, it seems, with every week. The temperature was perfect, and a gentle breeze made it even better. As the Earth warms, I figure, most of us will be spending more time walking in the night. I guess I'll be a veteran.
When I got to the park, conditions somehow seemed even better. I couldn't see the Milky Way, of course - not in these urban skies - but the sky did seem unusually full of stars. Then, as I unpacked my trusty Takahashi refractor, it suddenly hit me: I'd left my stool at home. A cascading series of problems followed. I'd taken my little Report tripod, which can usually hold the Takahashi okay, but only when not fully extended. Well, I would have to extend it all the way without a stool, and even then I'd have to bend over a little to use the eyepiece - let alone the red dot finder. A pleasant early morning under the skies suddenly seemed a lot less fun.
My worst suspicions were realized when I turned to Mars, now high above the eastern horizon. The tripod wasn't up to the telescope, and the view took a full four seconds to stabilize when I nudged the planet into view. That's an especially big problem because I don't currently have an eyepiece with a big field of view, so I have to keep nudging and nudging - which means more and more wobbling. There was so much wobbling, in fact, that I hard time perfectly focusing the telescope - a consequence, in part, of the Takahashi's lack of a two-speed focuser. Craning over my eyepiece, I suddenly felt let down by my equipment, for the first time in months. If only I'd brought that stool!
What's worse, the seeing turned out to be surprisingly uneven. It guess that breeze was messing with the view. Admittedly, the view of Mars would have thrilled me a month ago: there was the southern polar cap, bordered (if memory serves) by dark dunes, and there - in fleeting moments of atmospheric stability - a delicate latticework of dark albedo features, spidering up from the pole. And yet, on the whole it was all a bit blurrier than I expected. The Moon was impressive, with gloriously crisp detail around Plato in particular. I thought I could maybe - maybe - make out a few craterlets, but it was hard to be sure with the view wobbling, my neck aching, and my knees buckling.
When I turned south to Jupiter and Saturn, I was shocked - for the opposite reason I had been just a day and a half earlier. Both planets were almost void of detail, the view entirely washed out by terrible - not just bad, terrible - seeing. I hastily turned back to the Moon and tried not to remember the view through the APM. After a while, Venus rose to the northeast, a glorious golden crescent very near blood-red Aldebaran. It was nice to see the Pleiades again, rising over the trees. I suppose it won't be too long before Orion makes it reappearance in the morning sky.
A bright comet, NEOWISE (C/2020 F3) is visible to the naked eye just before sunrise - a sight we haven't had, I think, since PANSTARRS (C2011/L4) in 2013, and Hale-Bopp (C/1995 O1) in 1997. Unfortunately, I couldn't stay out long enough to see it. I fervently hope it survives its pass by the Sun so I can catch it in the evening sky within a week or so - clouds permitting, of course.
I walked home knowing it would be a very long day with very little sleep. Had it been worth it? If only I'd brought my stool, then certainly. But now . . . at least I'd gotten another good view of Mars. It's hard to imagine what it will look like in just a few months!
Rocking a fussy baby is a dangerous thing. The mind latches on to anything that can distract from the crying, and for me that means telescopes. Could I really use my Mewlon 180, I wondered lately? The telescope is beautiful, but it takes at least an hour to cool down - about as long as I often have to observe. And would I really feel comfortable collimating it in a park? Could I even haul it to a park in the handsome but bulky carrying case I bought for it?
The answer to all these questions, I ultimately decided, was no. At the same time, I happened across a new telescope model: a 140mm refractor made by a German company, APM. At just under 20 pounds, this telescope is remarkably lightweight for a 5.5" refractor, and because it's a doublet - meaning it has two lenses - it cools downs quickly. Color correction is also excellent - maybe not quite as good as my Takahashi FC100, but on par with my TV 85 - and a sliding dew shield means the whole assembly is quite compact. Quality control is so good that the telescopes can ship with strehl reports, meaning you know exactly what effect unavoidable wavefront aberrations will have on image quality. The price, meanwhile, is unbeatable for a big apochromatic refractor.
I couldn't help but think that the APM would work much better for me than my Mewlon, especially as I've gotten used to those pinpoint refractor stars. Once the idea was in my head, as usual, I couldn't shake it. I sold my Mewlon and a few eyepieces - including my cherished Ethos - then bought a rarely used, second-hand APM with an unusually high strehl of 0.958. To my surprise, the big telescope rides quite easily on my AYO II mount. I had been told that the mount can't quite handle refractors with similar apertures, such as the TEC 140. But if I balance the refractor just right, it does fine - provided I don't use a heavy eyepiece. Which, hey, I had to sell to buy the telescope anyway.
Although I promised myself after June 9th that I'd only take a telescope out in the early morning if the seeing seemed above average, by July 1st I couldn't wait any longer. Both seeing and transparency promised to be below average on the morning of the 2nd, but the sky was clear and I wanted to test the refractor. I went to bed at 10:30 PM, woke up at 2:30 AM, and was out the door at 3:05. I'd bought a large soft case to haul the telescope and all my equipment except my mount, and it certainly made it much easier to walk the 15 or so minutes to my new favorite observing site. When I got there, however, my arm was nevertheless ready to fall off.
This urban observing location is really special: screened by bushes in a large park that I have permission to use at night. As on the 9th, I was surrounded by rabbits and fireflies, and by 4 AM a cacophony of birds started calling all around me. The nearby trees are alive with noise - not bird calls, but animals moving through them. An army of squirrels? A flock of pterodactyls? Either way, it's a memorable experience being out there in the early morning.
Turning to Mars, the image was clearly brighter than what I observed through the FC-100DC on June 9th, but also softer with a bit more light scatter. Nevertheless, that southern polar cap and some delicate dark albedo features were clearly visible. Switching to Jupiter and Saturn, it was clear that poor seeing and to a lesser extent transparency, not the optics of my telescope, would limit my morning views. Both planets had more color than they do through my Takahashi, and I could see a whole family of moons around Saturn - always a thrill. Even at high magnifications, the view remained bright - another step up over the Takahashi. Yet I couldn't really push past 100x and still see detail; the seeing was just not good enough. Still, the great red spot was as obvious as I've ever seen it.
I wanted to have a look at the Ring Nebula to compare the light gathering capacity of the APM to my other refractors. With so much light pollution in the muggy sky, the nebula still seemed faint. But I could clearly make out a ring without using averted vision - a first for me. Then, at around 4:15 AM, I noticed a bright light on the eastern horizon. Was it a plane? Or could it be Venus? I had a look, and yes - there it was, a delicate golden crescent. I've never seen Venus look so beautiful; a mesmerizing sight that defied all my iPhone attempts to take a picture.
Walking back was another huge chore, and when I returned I noticed that the wheels on my case already had some wear and tear. Still, I thought the telescope acquitted itself very well. The only false color I detected, I think, was a function of seeing. Stars were, of course, pinpoints. The view was noticeably brighter than it is through my Vixen - about as bright as it was through my dearly departed C8, I figured. Thermal acclimation was nearly instantaneous. The mount was sturdy, with vibrations at well under two seconds. This telescope is a keeper.
On the evening of the 2nd, I realized that the sky would be clear again on the morning of the 3rd - except now the seeing and transparency promised to be average. Could I really function for a second day on four hours of interrupted sleep? Yes, I decided I could - and there I was again, in the park by 3:30 AM. This time I brought my Takahashi. I didn't have the energy to lug out my APM on so little sleep, and I wanted to compare the view through the FC-100DC with what I'd had with the APM.
Mars was, once again, my first target. I had been a little disappointed with the view of Mars through the APM, although to be honest I would have been blown away had it not been for that magical morning on June 9th. Now, using the Takahashi again, I realized that the view on the 9th was a function of good seeing and good transparency - and a great little telescope, of course. The view on the morning of July 3rd was similar to what I'd had using the APM on the 2nd, albeit less bright and with a bit less scatter (possibly owing to better seeing). The south polar cap was easily visible, and some dark albedo features too - a fine view, but not comparable to what I saw on the 9th.
When I turned the telescope south to Jupiter and Saturn, I was surprised: the seeing in that part of the sky was actually worse than it had been on the previous morning. Jupiter in particular was a hot mess, with nothing visible aside from the most obvious belts and zones. I could just make out the Cassini Division on Saturn, and I actually got some half-decent iPhone photos. Saturn photographs much better than the other planets largely because it's fainter. My phone washes out all detail on brilliant objects on a black background, so Jupiter especially almost always comes out as a bright white ball - except in those especially blurry moments, while taking a video, in which the picture just passes into or out of focus.
In general, views of Jupiter and Saturn were worse using the Takahashi than they had been with the APM, but a lot of that comes down to a slight difference in seeing. I would say that, with the focal extender, the Takashi probably gives slightly sharper but less colorful and somewhat dimmer views. With that said, the difference in brightness on the planets was less than I expected; the Takahashi puts up a hell of a fight against any telescope, it seems.
Turning to the Ring Nebula, the picture was very different. In subpar transparency - the forecast lied - the nebula was only barely perceptible at all. I needed averted vision to see a ring, and then again - just barely. I guessed that the view with the APM was twice as bright, a gigantic difference, of course, when it comes to observing deep space objects.
Once again, Venus loomed on the horizon when it was time for me to start thinking about packing. Once again, the view was glorious - and the iPhone washed out all details (ditto for Mars). Oh well - I took a shot anyway, and now it's on this website. Somehow, it still helps me remember the wonder.
Dodging crowds of rabbits, I made my way home. The lack of sleep hurts, but I'll cherish these early morning memories. And I sure am happy to have another telescope in the fold.
Washington is a feast-or-famine city for amateur astronomy. Clouds and bad seeing can endure for weeks - even months - with little relief, and then, suddenly, the weather clears for a week. When that happens, I've learned to take advantage of it - no matter how tired or distracted I may be.
So when the sky cleared last week, I was ready. Unfortunately, the first couple nights were marred by bad seeing. But the last two nights may have been my best since I started this hobby, many years ago now.
On night one - on the seventh - I hauled my Vixen 115SED to a park about a ten minutes' walk from my home. With its various upgrades and attachments - including the diagonal - the Vixen weighs just under 15 pounds. My larger tripod - a Berlebach - weighs around 12 pounds. Everything else probably weighs about as much. Walking ten minutes with all that gear - in three big bags - is about all I can take. But I made it, and after thoroughly dousing myself with mosquito spray, I walked towards the center of the park. There, I found a depression screened with bushes: quite possibly the best observing site I've encountered in a city.
As I unpacked, I found I was surrounded by rabbits. Over the next two hours, they would routinely hop by, some no more than six feet away. I could see the flash of their white tails bounding along from time to time. My attention, however, was elsewhere. The Moon would rise only after I had to walk home, which meant that conditions were ideal for deep space observing.
Of course, while seeing was pretty good, transparency was much worse, and at the beginning of the evening banks of high-altitude clouds seemed to obscure exactly what I most wanted to observe. Still, even then I had a good look at some particularly beautiful and bright stars: Arcturus, for example, glowing like an ember in the dark.
Whenever I take out the Vixen - okay, it's been just three times now - I'm impressed by how comfortable it feels to use. The size and weight seem just right to me. Stars meanwhile are absolute pinpoints, and the colors are just sublime. I'm convinced that a fine refractor will spoil every other telescope for the observer. There's just something about the sharpness and color that you can't get with another instrument - even if those other instruments lend themselves to much larger apertures.
Anyway, tonight I wanted to observe some globular clusters. I started with M13, the Great Globular Cluster in Hercules. Every nebula, galaxy, and globular cluster aside from the Orion Nebula is a subtle find in DC's light polluted skies. Even the brightest require averted vision to see clearly, and the Hercules globular is no exception. Yet with averted vision, I could make out countless tiny stars: diamond fragments against black velvet.
Next, I hunted down M80 and M92: two relatively bright globulars swimming in the most light-polluted part of the sky. They were not immediately spectacular, but then, of course, you think about it: the light coming through the eyepiece left its source during the onset of the Last Glacial Maximum (colloquially called the last "ice age"). There's something indescribably special about scouring the most distant reaches of the Milky Way. And these two globulars I had never observed before.
The Ring Nebula (M 57) was last on my list. It was a remarkably easy find, and quite obvious despite its relatively low elevation above the horizon. I needed averted vision to clearly see the ring, and I just wonder what it would look like in a truly dark sky. Still, it's always surreal to see M57: a preview of the eventual fate of our Sun.
I went to bed content on the seventh, then woke up on the 8th to realize that seeing and transparency early in the morning of the ninth would both be above average. I can't remember the last time that happened. With Jupiter, Saturn, Mars, and the Moon all slated to be in the night sky, I couldn't miss it. I set my alarm to 3:30 AM - then woke up at 2:30, exhausted but ready to go. I packed up my FC-100DC and walked out the door.
This time I nearly blundered into a deer while entering the park. For some reason, that deer just wasn't interested in moving. I was again surrounded by rabbits and this time, a chorus of singing birds. It was beautiful. There were the planets and the Moon, all lined up - and there were high-altitude clouds, defying the weather forecast. For the next two hours, I switched from one world to the next, dodging the clouds as best I could.
Here I find it hard to put in words the thrill I got when I turned the Takahashi to Mars. Mars is still many months removed from its biannual opposition - its closest approach to Earth in its long orbit - but the view through the Takahashi was so much better than anything I'd seen before that it truly was like I was seeing the planet for the first time. As you can read in this blog, in previous attempts to observe Mars I always wondered whether I could really make out its surface features. No such confusion this time. There was the south polar cap, bright and clear as day . . . and there were its dark albedo features, not only obvious but intricate in detail, despite the relatively small apparent size of the planet. I was flabbergasted. With focal extender screwed in - and even without - the Takahashi is a stunning planetary telescope.
I realized just how stunning when I turned to Jupiter. At around 200x, I have simply never seen so much on the giant planet. You had the feeling that, if only you could get a little closer, you could see an almost Hubble-like level of detail. The seeing didn't quite let me do that, nor did those awful clouds. But still: it was stunning to see all those cloud features I'd previously seen only online or in books. Totally obvious - of course - was the great red spot, and over an hour I followed along as it moved toward the limb of the planet. The four Galilean moons were all lined up, and I could easily make them out as disks.
Saturn was equally spectacular, of course. At around 250x, the view was a little dim with those clouds rolling in, but impressively detailed. It was not quite the best view of Saturn that I've had with the Takahashi - owing, I think, to those clouds - but it was close. Cloud features were plainly evident, as was the shadow of the planet on the rings - always a highlight for me. The Cassini Division clearly surrounded the entire planet.
Not to be outdone, the Moon was just as impressive as the bigger, more distant worlds. The pictures didn't quite turn out as I'd hoped, but wow: the detail was perhaps even more spectacular than it was on May 31st, and this time without any false color at all. I observed at around 250x for a while, savoring the view especially with TeleVue Plössl eyepieces attached to a 2.5x PowerMate. Crater peaks and rilles in particular were breathtaking to resolve and follow.
I had one quick look at the Ring Nebula before the Sun came up. Although its constellation - Lyra - was now much higher in the sky than it had been on the 7th, the brilliant Moon made up for it by washing out fainter objects. The nebula was quite easy to make out, but dimmer - slightly - than it had been through the Vixen.
Now the Sun was coming out, and I had to rush home for my young son's wakeup time. Having had just two hours of sleep, it would be a long day. But so worth it after such a memorable night.