Earlier this month, I set forth on a night of above-average seeing to the field that has become my favorite observing spot, just an eight minutes' walk from our new home. I heaved up the hill bordering the field, hauling my Takahashi and an uncomfortably heavy backpack, full of expectations. As I rounded the top of the hill, I saw . . . this.
It's one thing to install new lights, but these were about the brightest I've seen in Washington, DC. I could scarcely believe my now not-at-all dark adapted eyes. Another observing spot - my third, since this blog began - ruined by newly installed, fluorescent lighting. It's demoralizing to experience firsthand how every patch of dark sky in the city is steadily being surrounded and at last consumed by unnecessary light.
I wandered home, too stunned, too sore, and too tired to find another location to set up. In the days that followed, I reviewed my options. I wandered around my home, and found another location, in a neighborhood garden, just a bit farther than the field - but a lot more overgrown with bushes and trees, and no doubt overrun by summer bugs. Then there was another field, perhaps a 20-minute walk away, and (for now) dark at night.
Wherever I went, it would be farther: and I had trouble enough walking the eight minutes to the now unusable field. I decided I had to reduce the weight of my grab-and-go setup, and in particular ease the strain on my shoulders. But how? MY DM-4, I thought, was about the lightest mount I could use with my Takahashi FC-100DZ.
I agonized over whether to exchange the telescope for something smaller and less capable. I bought it in the first place because it was the biggest and best telescope - that cooled down quickly and provided spectacular lunar and planetary views - I could easily walk with for 10 or 15 minutes. But 20 minutes? And with the mount I needed, and my eyepieces?
Eventually I figured that the step down to something smaller - a Takahashi FC-76 DCU, for example - was just too big a fall to be worthwhile. Since my tripod is already wonderfully light, I was left with my eyepieces and mount. The eyepiece problem was easy to solve. Rather than carry four Delos eyepieces, I decided to take just one eyepiece with me: a Baader Mark IV Variable Zoo. When equipped with its barlow lens, it would give me all the magnification I could want. There was a cost: a marginal loss in sharpness, perhaps, and a meaningful loss in field of view (which means something with a manual mount). Still, I found it a small price to pay compared to the alternative (swapping telescopes).
I also started researching mounts. Readers will know I settled on the DM-4 after using an AYO II mount. Both mounts are impressive. The AYO II is lighter than the DM-4 and more compact, even as it seemed less durable. Now I wondered whether to exchange the DM-4 for another AYO II; weight, it seemed to me, had to come first.
However, I soon found some intriguing newcomers in the quality manual mount market. One in particular stood out: the CT-20 by NoH's Mount, a little company owned by an independent craftsman in South Korea. On paper, the CT-20 weighed less than half as much as the DM-4 (and a third less than the AYO II), while being more compact than both. It cost less and handled more weight. It seemed almost too good to be true - but I bought it, and sold the DM-4.
To my surprise, on the night the CT-20 arrived from South Korea, the sky was clear and both seeing and transparency were well above average. I greedily unpacked the little mount, hoping I'd be able to use it immediately. I was immediately impressed - and, to be honest, a little surprised - to find that its build quality seemed exceptionally high, on par certainly with the AYO II and DM-4. I was also delighted to find that the mount is even more compact than I'd expected (this is a rarity in amateur astronomy, where things tend to be much bigger than you thought they'd be).
This time I packed my mount and eyepiece into a much smaller, more comfortable backpack; all in all, I think I shaved about ten pounds from the load I had to carry. I walked the 20 minutes to the more distant field, and was delighted to find that I still had some energy left - and that the field was mercifully dark. I unpacked, set up, and to my astonishment soon found the mount at least as stable with the Takahashi as the DM-4 - and that without the vibration suppression pads that I used with the bigger mount! It also allowed my telescope to easily clear my tripod; with the DM-4, I'd needed a ($250!) tripod extender for that.
I quickly slewed to the Moon, and there encountered another surprise: a stunningly sharp view of the lunar terminator in the best seeing I've experienced all year. The mountains on the lunar terminator in particular took on a gloriously three-dimensional character, and I easily made out countless subtle rilles and scarps. Rupes Recta, the so-called "Straight Wall" of the Moon, was perfectly illuminated and a particularly striking sight. I got a genuine sense - maybe for the first time - of how eighteenth- and nineteenth-century astronomers could have mistaken rectilinear features on the Moon for signs of intelligent life. I'm not sure a Delos eyepiece would have afforded a better view; in fact, I couldn't imagine a better view.
Next up was Jupiter, and wow: what a sight. I have never - not even with my TEC 140 - seen the planet's Galilean moons look so clearly like colorful discs: like perfect little worlds, clearly distinct from stars. The planet's cloud belts and zones were phenomenally complex, with countless delicate filaments intruding from the dark belts onto the milky-white zones. The planet's southern hemisphere in particular boiled with complexity, especially in moments of seeing so good that the terrestrial atmosphere seemed simply to disappear.
I observed the planet for a long time, spellbound. It was thrilling not only to feel so close to that alien world, but also to know what the Takahashi (and my entire grab-and-go kit) is really capable of. Then a sprinkler went off in the distance. It was too far to worry me - until I realized that another sprinkler could well be waiting under my feet. I quickly packed up and made my way back home.
I'll come back to that field, sprinklers and all - but now other locations seem in reach, thanks to an unheralded little mount that may just be the best I've ever used.
Binoculars have long frustrated me. While I've thrilled at catching glimpses of rocket launches or lunar craters with big Celestron binoculars here in Washington, DC, I could never hold them steady enough to make out more than blurry glimpses. I opted for more manageable binoculars, but still: no matter what I did, the view was always disappointing. Eventually I gave up and decided that binoculars were just not for me.
Then I learned about image stabilized binoculars: remarkable little devices that use gyroscopes and moveable lenses to cancel the inevitable vibrations caused by human hands. The high cost and relatively small size of these binoculars at first convinced me that it just wouldn't be worth it to buy one. Eventually, however, I found that I'd accumulated a heap of eyepieces I no longer used, and after selling them I took the plunge. I bought a pair of Canon 12x36 Image Stabilization III binoculars.
When they arrived, I decided to try them out on the abundant birds in my backyard. I'm not a bird watcher - the one time I went on a bird watching tour at a conference, I was nearly abandoned in the middle of a desert - but I have to say, I was absolutely floored by the view. It really felt like the bird I was looking at - a female cardinal high up in the canopy - was right there in front of me on the table. The view was absolutely crisp, razor-sharp with no false color, and better yet: it was stable. It's hard to emphasize enough what a difference that makes.
I was eager to see what I could make out on the planets, which had become very prominent in the mornings. When I tried, however, I was disappointed. This time I noticed some false color, and the image wasn't quite sharp enough for me. I figured, sadly, that even the best binoculars might not have much value for me in astronomy.
Yet last night I couldn't resist the temptation to try out the binoculars one more time. The last "supermoon" of the year was rising, the Perseid meteor shower was peaking, and I really wanted to go to my favorite park. It's a long and painful hike with a telescope, but easy and fun while riding a scooter with one-pound binoculars in a backpack. I zipped out at around 11 PM, and made it to the park in no time.
The very first thing I saw as I reached my preferred observing spot was a bright meteor: an auspicious start if ever there was one. When I looked at the huge, golden Moon, however, I was again disappointed: it was just a bit blurry, with too much false color. This time I carefully adjusted the binocular's collimation and focus, waited a few minutes for it to acclimate, and tried again.
What a difference! Now the Moon was wonderfully sharp - like those birds in my backyard - and to my astonishment the view really wasn't much less impressive than it is with my Takahashi refractor at low magnifications. The amount of detail I could make out was nothing short of miraculous. Then I turned to Saturn, and could hardly believe it when I easily made out its rings. Jupiter was rising above the horizon, and sure enough: there were its moons, perfectly clear in binoculars with an aperture of just 36mm.
There was something exhilarating about how easy it all was. The binoculars are little bigger than my hand, and of course they required essentially no setup. But there I was, with bats fluttering overhead (I saw one through the binoculars), admiring the heavens. After about 15 minutes, I had that giddy feeling I sometimes get during my best nights under the stars - and since I wanted to leave on a high note, I hopped back on my scooter and sped home.
Image-stabilized binoculars cost a lot more than a decent pair of regular binoculars (but a lot less than premium binoculars with high-quality optics). However, I'm now convinced that it's difficult to compare them to their lower-tech cousins. It's a completely different experience to use them. Because their views are stable, looking through them is more like using a telescope than regular binoculars - with the added benefit of the three-dimensional experience that binoculars (or binoviewers) uniquely provide.
I have a real weakness for little instruments that provide outsized views (it's why I loved my TV 85 as much as I did). After last night, I have to conclude that the diminutive Canon 12x36 is, quite possibly, the most impressive optical instrument I've ever tried out. It doesn't often work out this way in amateur astronomy, but sometimes big things really do come in little packages.
The planets are all lined up in the early morning sky, and the summer atmosphere here in DC can really settle down at night. The Sun begins to rise at around 5 AM, however, so getting up early enough to see the planets means sacrificing sleep. Still, I couldn't resist setting out twice, over the past few weeks, to catch glimpse of Mars, Jupiter, and Saturn.
First, on June 25th, I marched over to a nearby soccer field with my Takahashi in hand. Seeing with supposed to be better than average, while transparency was a little worse. When I set up, however, I realized that the atmosphere was actually surprisingly turbulent around the eastern horizon. That kept me from getting a good view of either Jupiter or Mars, which was quite disappointing given how tired I was. When I swung the refractor over to Saturn, however, I realized that the atmosphere was better towards the south. I had a really nice, crisp view of the planet and its rings before wisps of high-altitude cloud convinced me to pack up.
A few days later, I celebrated my daughter's sixth birthday. While hauling stuff to her party, I realized that a little wagon would really help. It also dawned on me that a big enough wagon could carry my TEC 140, together with its tripod, mount, and eyepieces. I pulled the trigger and bought a UIDYGGD Folding Wagon, hoping that I could use it to haul my biggest telescope to a nearby field. In summer the leaves are just too thick, and the streetlights are just too bright, to use the TEC 140 in or near my backyard.
On the early morning of July 11th, I loaded everything into the wagon and began to wheel it towards the field. After about thirty seconds of hauling, I nearly gave up. I was dragging everything uphill, and my back was on fire. I paused, then persisted - and after fifteen minutes, reached the field. It occurred to me that there was no way I could have made it there while holding my telescope case in one hand, and pulling my rolling suitcase - which stores my tripod, mount, and eyepieces - in the other.
After I set up, I turned to Mars and was rewarded with easily my best view of the planet this year. Not only was the south polar cap clearly visible, but so was a latticework of dark albedo features spidering up towards the planet's equator. Turning, to Jupiter, I was delighted to see the shadow of a Galilean moon, just beginning to emerge onto the planet's western limb. This time seeing really was better then average. It seemed there were more cloud belts than I could easily count, and there was that sensation of infinitely intricate detail that the clouds can have when Earth's atmosphere is sufficiently stable.
Saturn, however, again stole the show. I've never had a view of Saturn using the TEC 140 that was quite as good as those I've enjoyed of Mars or Jupiter. But this time, with Saturn fairly high in the sky, I was treated to perhaps the sharpest view I've ever had of the planet. Not only was the Cassini Division plainly visible for the entire length of the rings, but I could make out multiple rings - which is rare for me -and the shadow of the rings on the planet was a perfect, velvet black. I also made out a whole slew of moons, and beautifully detailed, turbulent clouds on the planet's creamy yellow-white disk. It was a view that fully justified my lack of sleep - in fact, one of the best views I've ever had of a planet.
I usually prefer viewing Jupiter and Mars to Saturn, because the appearance of the closer planets changes much more than that of Saturn. But when the atmosphere cooperates, the night sky offers nothing more beautiful - or more hauntingly alien - than Saturn and its rings.
It was Father's Day yesterday, and I had sanction to wake up late. When I found out the night would be clear, I was full of anticipation - until I realized that seeing was forecast to be about as bad as I can remember. I stepped out after sundown, however, and found the stars unusually visible in the night sky. Sure enough, transparency was high above average - which made sense, as the night as unusually crisp for a DC summer.
Out I stepped at around 1:30 AM, burdened like a Tolkien dwarf with the EVScope II on my back, and a tripod in hand. This time I walked to a nearby school's soccer pitch, which not only affords an impressive view of the whole sky but is also (strangely) bereft of street lights. I set up in a few seconds, then targeted the heart of the Milky Way as it rose well above the southeastern horizon. The light pollution is very bad in that direction - it's right above the National Mall - but still, I had high hopes.
I've largely praised the EVScope in these pages, and rightfully so. In a matter of moments the Omega Nebula emerged from the background light pollution, and wow that is an impressive effect. After a five-minute exposure, I moved on to the Lagoon Nebula, with much the same results. I now slewed to the Owl Nebula, but this time the view underwhelmed - even after five minutes - and it's not surprising: at around tenth magnitude, it's a challenge for the EVScope in light-polluted skies. As the chill began to set in, I finished up with the Sunflower Galaxy: a faint spiral roughly the size of the Milky Way, 27 million light years distant. It was a subtle view after six minutes or so, but still recognizable.
I had profoundly mixed feelings as I walked home. On the one hand, it continues to amaze me that the EVScope brings nebulae and galaxies within my reach, from downtown DC. On the other - and this can't be stressed enough - using the telescope is not comparable to traditional observing. With a regular telescope, the bulk of your time is spent straining at the eyepiece. You train yourself to see like observers have for centuries - using averted vision, for example - and there's an art to it that you can improve over time. When you're not observing the obviously spectacular - Saturn or the Moon, for example - then what's visible through the eyepiece can be absurdly subtle. The average person would never recognize, let alone appreciate, what you can just barely glimpse. What makes it special is the sensation of seeing with your own eyes what can otherwise be admired only in enhanced pictures. You are truly experiencing the universe, albeit only as well as imperfect optics and a turbulent atmosphere will permit on any given night.
With the EVScope, by contrast, you navigate an app on your phone. You stare at a screen as the telescope effortlessly targets and then observes your chosen object for you. Slowly, a picture emerges of the object you've selected. It's a little like a picture you can Google - something taken by Hubble, for example - except way worse. As the picture slowly brightens, you wait. You scroll through other stuff on your phone, perhaps, or you sit there thinking. One thing is for sure: most of the time, you aren't actually looking at space at all. Eventually, you turn your attention back to the app and if you're satisfied enough with the picture, you target something else. You end up with pictures that look impressive when they're small, on your phone, but - owing to their resolution or the unavoidable influence of light pollution - underwhelm when you blow them up on your laptop.
It's exciting to find what's out there, in the sky, that you could never see with traditional optics (barring a difficult-to-use astrophotography setup, of course). But sometimes, walking home, the experience leaves you cold. Sometimes, you feel like all you've done is played with screens. You haven't really experienced nature, and you certainly haven't learned an art. Everything was easy, so occasionally it feels like little was gained. You might as well played with a screen at home.
On some nights, the EVScope can feel like a toy - whereas a more traditional telescope always feels like a tool. Maybe that's because of how and where I'm using the EVScope. Maybe the telescope could do more under a darker sky, and certainly the EVScope comes with citizen science features that I haven't begun to access yet. But with the similarly-priced FC 100DZ, for example, I feel like I'm engaging in an old art with a rich history. With the EVScope, I often feel more like I'm playing a game on my phone. Both have their virtues, but if I had to choose one telescope - it would be the refractor.
Summer has truly begun in DC when the forecast calls for back-to-back nights with good seeing, and the planets begin to rise high above the horizon. After a very satisfying morning with my Takahashi FC-100DZ, gazing at the southern icecap of Mars, I hauled out my TEC 140 last night and found the same gap in the trees. Once again, there were Mars and Jupiter in the pellucid morning sky, in good (if not exactly great) seeing.
I'd swapped my DM-4 mount for a DM-6, and my carbon fiber tripod for a Berlebach Uni. The heavier ensemble is much more pleasant to use. As I've written in these pages, there's just not beating the mechanical quality of TEC. Every aspect of the 140 is a joy to see and a pleasure to manipulate. The DM-6 and Uni hold the telescope exceptionally well, with virtually no vibrations even when I adjust the buttery-smooth Feathertouch focuser. If I could have just one setup: yes, it would be this.
I've often found an easily noticeable difference at the eyepiece between quality 4- and 5.5-inch refractors. The TEC in particular has given me my finest-ever views of Jupiter and the Moon, with an ethereal, three-dimensional quality and the sensation of texture that I've never had with another telescope.
This morning, however, I was mildly surprised to find that the view resembled what I'd seen the previous morning, using the FC-100DZ. Granted, I could see a star near Mars that I hadn't sighted with the smaller refractor, and the cloud belts of Jupiter definitely showed more detail in moments of steady seeing. At well over 200x, a dark albedo feature on Mars seemed to more clearly extend north from the southern icecap, which of course I could make out clearly.
Yet the difference was, overall, insubstantial. I think amateur astronomers too often exaggerate the importance of equipment in what they can discern at the eyepiece, and too often understate the influence of the atmosphere. In my experience, even subtle atmospheric differences from night to night - and from one part of the sky to the other - can matter more than very substantial differences in equipment (that might make one setup cost many thousands of dollars more than another). It's humbling to know that a $150 telescope - such as the C90 - could outperform an $8000 refractor (such as the TEC 140) on any given night.
I also wonder to what extent nearby streetlights were running interference, softening the view at the eyepiece. Something like that seems to have happened to me before, when my FC-100DC suddenly showed garish chromatic aberration as I observed the Moon under some bright lights.
In any case, several dark markings - barges? - were fleetingly visible in what I took to be the north equatorial and north temperate cloud belts of Jupiter. I was again struck by the pale and almost washed-out view of the planet, where contrast has often seemed so stark with a 5.5-inch refractor. I thought I could make out a very faded Great Red Spot: not much more than a subtle blotch in the planet's southern hemisphere.
After I packed up, I reflected on a recent trip to some astronomical archives, which I consulted to complete my next book, Ripples in the Cosmic Ocean. Among other stops, my travels took me to the archive of the Royal Astronomical Society of Canada, which is tucked away in a little office on the second-story of a nondescript building in Toronto. There's a heap of telescopes in the middle of the archive, and the Society's wonderful archivist explained to me that all of them, in various ways, tell the history of astronomy in Canada. He hopes to mount them in a museum - and indeed I drooled over some fascinating pieces.
One I found particularly striking: a beautifully-preserved little telescope - is it 40, maybe 50mm across? - used by satellite-trackers in Operation Moonwatch, amid the paranoia that accompanied the early Space Age. The mechanical quality really impressed me - the tabletop tripod alone was a diminutive masterpiece - and I wondered what the optics could reveal. I'll bet today's amateurs would pay through the nose for a travel scope like this one.
I visited the archive to look over some astronomical logbooks, and as usual those were a treat. It can be viscerally moving to read over another amateur's drawings and reflections from decades or centuries ago. Our world has changed - and sometimes other worlds have, too - but there's a common thread: the long-dead observer and I both gazed with wonder at something that's far bigger than our fleeting lives. We struggle to put in words what it means for us, as we obsess over equipment and traces of detail in planetary disks.
We are the Universe, conscious of itself - but only briefly.
The planets are rising high above the early morning horizon, and for once the forecast called for good seeing. I slept fitfully until 4:15 AM, nearly convinced myself to fall back asleep, and finally slipped out the back door at 4:45. I soon found that I couldn't see a planet from my backyard, but I did find a spot nearby where a gap in the trees revealed two brilliant planets. They were remarkably close together - not much more than Jupiter and Venus were about a month ago. With the Sun beginning to brighten the morning sky, I set up my Takahashi and targeted the brightest of those planets.
At first, I thought it must be Venus - that's how bright it was - and I assumed the less brilliant, yellowish planet was Jupiter. For a minute or two I thought my finderscope must be misaligned. I kept targeting the brightest planet, and time and again Jupiter showed up in the eyepiece. Finally, it dawned on me - a little later than it might have, had I had more sleep - that in fact the brilliant planet was Jupiter. I was astonished to find that the dimmer - but still very bright - planet was Mars. It's so much brighter now than it was just a month ago - and that, of course, means that it's fast approaching Earth.
I was a little disappointed upon observing Jupiter. Towards the eastern horizon, the seeing was a little worse than I'd expected, and although I could make out many salmon-colored belts, shimmering in the tremulous atmosphere, the planet seemed a little washed out. It lacked the vivid reds and ochres that sometimes create such striking contrast on Jupiter. At just over 200x the Galilean moons were tiny disks, but without obvious differences in color.
Mars, by contrast, was a deeper red than I've normally seen it. For the first time in two years, I made out a polar icecap - this one the southern icecap - and a dark ring around it that was, in the late nineteenth century, widely assumed to be meltwater lake draining off the cap. I could also discern dark streaks shooting up towards the Martian equator. In the nineteenth century, many astronomers - not just Percival Lowell - figured that these were canals and oases channelling polar meltwater towards cultivated fields. That was how the Martians were thought to cling to life on a drying and cooling world.
Mars is my favorite planet to observe when it nears its biannual opposition (and it's free of planet-encircling dust storms). This morning reminded me of the morning of June 9th, 2020, when I observed Mars for the first time through my FC-100DC, as it began to approach Earth that year. That morning, I was stunned to discern the southern icecap for the first time, along with dark albedo features that had never been visible to me before. It excited me to no end to realize how much more could be visible as the planet wheeled closer and closer to Earth that fall.
I have much the same feeling now. I truly can't wait to see what Mars will bring this year. I wonder what I'll be able to glimpse with telescopes that are a little better than those I had in 2020.
We've had plenty of clear skies lately - after a generally rainy spring - but the atmosphere has been so turbulent that I've rarely thought it worthwhile to take out a telescope. This week brought more of the same, but also something unique: a rare, close conjunction of Venus and Jupiter in the early morning sky. With the sky mostly clear, transparency quite good, and seeing a good deal worse than average, I woke up at around 5 AM last night and walked out with my Takahashi.
I wasn't sure where to go. Trees blocked the view of the planets from my backyard. Before our move, I might have walked to the park I like best, but that's 20 minutes away now. By the time I got there I figured the Sun would be too high in the sky - and I'd be painfully sore from carrying everything. I wandered in that general direction all the same, and then noticed a hill I usually pass while taking my kids to the playground. I decided to walk up the hill just in case - and, sure enough, by the time I got to the top I noticed two brilliant beacons just rising into view above the eastern horizon. Jupiter and Venus!
What a difference the new carbon fiber tripod makes! Walking with it is so much easier, and the FC-100DZ is much more stable now. After setting up I plugged in a 24mm Panoptic eyepiece - for a magnification of 33x - and took in the view.
I'm not a big conjunction guy - I care much more about seeing details on other worlds than I do about seeing those worlds appear close together - but it was pretty impressive to see both Jupiter and Venus in the same field of view. Although seeing was very poor and it was hard to make out much detail on either world, it was easy to get a sense of just how different they are from each other, and how diverse even our little Solar System really is. It certainly helped that three of Jupiter's moons were clearly visible, and that Venus was roughly halfway illuminated. I tried to take a customary blurry cellphone picture, and just by chance at that very moment a plane zipped in front of Jupiter.
As night turned to day, I packed up and walked home. When I returned to my backyard, I noticed that Jupiter and Venus were both clearly visible from a little spot near my fence. Maybe I hadn't needed to walk, after all? Still, there's always something magical about that hour before sunrise, when the city is still asleep and the loudest noises are often birdsong.
Here in DC, it's hard to avoid thinking obsessively about the demoralizing news from eastern Europe. Yet the skies cleared recently, enough for an hour or two of late-night escapism. A few nights ago, I slipped out with the Takahashi. Transparency was really good but seeing was far worse than average, and since it was well below freezing I didn't want to stay out for long. Still, the FC-100DZ performs so well in poor seeing that I still managed to have a nice view of the waning Moon from my new backyard.
Conditions were similar last night, with good transparency and poor seeing. By 10 PM the Moon was only just beginning to rise, which means that the sky was still quite dark. The Big Dipper was climbing towards zenith, and that gave me a chance to image Bode's Galaxy - M81 - with the EVScope 2.
I tried imaging M81 with the EVScope 1 on several occasions last year. I have a particular fascination for barred spiral galaxies like M81, which at 12 million light years away is a little smaller than our galaxy. I'm not sure where that comes from exactly, though the shape is certainly aesthetically pleasing. As a kid, I vividly remember admiring a picture of a barred spiral - was it NGC 1300? - that really captured my imagination. Then I found out, when I was a little older, that our own Milky Way was actually a barred spiral, not the conventional spiral it's usually portrayed to be. That was a fun little eye-opener for me.
In any case, observing Bode's Galaxy with the EVScope 1 was a disappointment for me. The galactic nucleus is bright enough, but the spiral arms are subtle and easily lost in the downtown DC light pollution. I never got much more than a blurry circle. The EVScope 2 allows me to take longer exposures, however, and that plus its higher resolution made me hopeful of a better outcome last night.
And indeed, this is far better than anything I managed with the EVScope 1. To capture this 26-minute exposure from my backyard in downtown DC, after just a few seconds of setup time, seemed borderline miraculous to me. This time, I also peered through the new and improved eyepiece of the EVScope 2. What a huge improvement! Looking through the eyepiece of the original EVScope was like looking down through a barrel at a tiny, pixelated square. But the eyepiece of the EVScope 2 feels like . . . well, a proper eyepiece. The view is circular, it feels close, and it's noticeably higher resolution. In fact, it looks more impressive than the image above.
The gallery above shows the difference between unprocessed 9-minute, 18-minute, and 26-minute exposures. The difference is subtle, but it adds up. Note the relative lack of a diffuse glow around the galaxy. With the EVScope 1, that glow used to creep into my exposures after a few minutes, as a result of light pollution here in DC. That's one reason that my views were so much better out of the city. The EVScope is much better at filtering out light pollution, which makes it a far more capable telescope for deep space observing in the city.
When I ranked the telescopes I'd owned last September, the EVScope 1 came it at number 7. I'd rank the EVScope 2 a good deal higher - definitely in the top five, maybe even the top three. It's that good.
With a backyard, I'm able to do something I don't think I've ever tried before: observe the Moon before sunset. I just could never imagine doing that in my old home. On my former rooftop, I might have been besieged by my neighbors, and in a nearby park, hounded by dogs. But now, at last, I can relax behind a fence, set up a nice refractor, and enjoy the Moon at my leisure with a beer in hand. It's beautiful.
During my move, I'd noticed that the focuser on my Takahashi FC-100DZ had a little too much give. The culprit, I realized, was a loose screw. Repairing this little issue led me to consider upgrading other aspects of my grab-and-go setup. I parked the telescope inside to attempt to quantify the vibrations I'd long experienced with the Berlebach Report tripod I'd been using. It didn't take me long to realize that, even in a completely wind-free environment, those vibrations were intolerable at high magnifications.
I will still need to walk to the parks I've often frequented - my little backyard only reveals so much, and the pockets of sky I can access will close when the trees regain their leaves - so I started wondering: did I need to sell the DZ for a lighter telescope? I hated the idea, but I certainly don't want to haul around the tripod I use with my TEC 140 just to use a four-inch refractor. Uncharacteristically, I wrote a note asking the CloudyNights community for help, and help I received.
Carbon fibre mounts, some of the responses stressed, could yield fewer vibrations than my wooden mount. This seemed counterintuitive to me - wood, I thought, tends to dampen vibrations - but I went ahead and purchased an Innorel RT90c Carbon Fiber Tripod. I was skeptical, but sure enough: the tripod just about halved the vibrations I'd experienced. It's also much lighter and more compact, meaning that I now have a more portable and more stable grab-and-go setup. Best of all, I get to keep the DZ: a telescope I love.
I took the above picture of the waxing Moon a couple days ago (February 9th), at around 5:00 PM. At the time, seeing was worse than average, but transparency quite good. Note how much lunar detail the FC-100DZ reveal in even poor seeing; it's quite remarkable.
Observing at 5 PM gave me a chance to, at long last, share my passion with my kids. My eldest is 5, my youngest 2. Both insisted that they could see craters, though my daughter claimed that the Delos eyepiece was a little hard to use. And it's true: it takes a little practice to know where exactly you should position your eye with a big, complex eyepiece like that. I wonder whether a simple Plossl eyepiece would be a better bet for the kids - and for outreach more broadly. It's what's I use with my students (admittedly, partly because I don't want to risk my pricier eyepieces).
It clouded over that night, unfortunately, so I wasn't able to observe after sunset. Yet when I stepped outside the next night to get some air, I realized to my surprise that I could see the Moon setting in the west behind my building. Clouds were rushing in, and the temperature was falling fast. Before my move, I would never have observed in those conditions. Yet now it took me all of three minutes to pop inside, grab my Takahashi, and set up everything up in the only corner of my backyard that still afforded a view of the Moon.
Neither the telescope nor my eyepiece had cooled down, and seeing was atrocious: about as bad as it gets in DC. But as the picture reveals, there was still plenty of lunar detail to be seen. The Takahashi excels in good seeing, but I've also found - like others - that it manages to outperform just about any comparable telescope in poor conditions.
I'm hopeful that, in late fall, winter, and early spring, I'll be able to use my backyard to study the Moon far more consistently than I ever have before. In that effort, I suspect the FC-100DZ will be my most important tool.
Two things have kept me from posting - and observing - these last three months. First: the weather. This has been about the worst stretch of cloudiness and terrible seeing that I can remember in DC. On the rare nights that seemed promising, conditions worsened just as I was about to step outside with my gear. I remember a similar though slightly less atrocious stretch of bad weather last year at around this time, when I was so impatient to see whether my new Takahashi FC-100DZ really provided better views than the Takahashi FC-100DC I had just sold. Now I wonder: is this the start of a new trend, or perhaps a regression to a mean that existed before I started observing whenever I could?
But second, I bought a home. That turned out to require a lot of work - more than enough to keep me in, even if the nights had been clear. The new place is a condo with a fenced-in backyard. A backyard! It's what I've always dreamed of. Okay, it's small, and it's mostly for the kids. But when my wife saw the yard for the first time, she reported a gap between the trees that "might be good for your telescopes." My heart skipped a beat. Can you ask for anything more from a partner?
We moved in just two weeks ago. It's been quite cloudy since, but then, last night, the clouds parted, and the forecast called for better than average seeing and transparency. So I woke up at 4 AM, ready to go. I didn't have to go far: whereas I've long had to walk for ten or fifteen minutes to reach a nearby(ish) park, now I just step out the back door. What a thrill!
Admittedly, the backyard affords only pockets of open sky, nearly all of them facing east-southeast. When the overhanging trees sprout their leaves this spring, most of those pockets will fill up. For now, however, I was thrilled to see Ursa Major, Hercules, and Lyra all hanging overhead. There are some streetlights nearby, but they're not blinding and their light points down at the ground. For a condo backyard, you can't ask for much more.
I slipped outside with my EVScope 2. That's right: I've upgraded from my first-generation model. The sequel has a higher-resolution sensor that shows more of the sky, along with a much-upgraded eyepiece. Those were exactly the upgrades that I've yearned for, so when I heard about them I had to pounce. The EVScope 2, however, is not exactly cheap. I bought it at about $1000 more than the original, which of course I had to sell to make the purchase remotely possible.
When I stepped outside, it was -7 degrees Celsius - that's about 19 degrees Fahrenheit. To cover the approximately 30 degree (Celsius) delta between inside and outside temperatures, the EVScope required a good thirty minutes to acclimate. When I tried to capture an image before it had cooled down, it was predictably blurry and unsatisfying. But after the telescope had reached ambient temperature, the view was rock-steady.
The EVScope 2 seems to align itself even more easily than the original. It honestly takes no more than ten seconds or so, and then it's ready to slew anywhere in the night sky. Objects also appear more consistently centered in my view after the telescope finds them. I'm not sure what accounts for this; is there really something about the EVScope 2 that could be responsible for it? I'm not sure. Maybe I was unlucky with my first unit. But the improvement sure is handy.
M51 - the Whirlpool Galaxy - is always a favorite target. Last night it was a little close to the balconies above us, which required me to reposition and realign the telescope a few times to get a decent angle. Then, in just six minutes, I got the above picture. I think it's about as good as the image I got in Lewes, Delaware last summer, with the EVScope 1 under far darker skies. I think the new version handles light pollution far better than the original; certainly it seems to take far longer exposures before the image starts brightening around its edges. The amount of detail on M51 is really extraordinary when you consider it took just a few minutes to get that shot in a light polluted, Bortle 7-8 sky.
As readers of this site will know, I get such a kick out of M57, the Ring Nebula. With a four-inch refractor in DC it is just barely - barely - there, and then only with averted vision. A larger refractor shows more, but not much. The EVScope, of course, makes it so obvious, and so colorful, in just a few minutes. The EVScope 2 provides meaningfully less grainy images; the nebula looks smoother here, and much more true to life.
As the eastern sky showed its first signs of brightening, I turned to M13, the Hercules Cluster, to close out the night. There's just something about a globular cluster that is always such a thrill for me, and of course the great Hercules cluster most of all. This view did not disappoint: easily the rival, I thought, of what the EVScope 1 revealed under far darker skies. The EVScope 2 seems to more consistently permit longer exposures; I found that my phone frequently lost its connection to the EVScope 1 when my exposures passed ten minutes or so. Maybe that was just my unit, but still: it was nice to easily cruise on to 12 minutes on an object like M13.
I kept slipping back inside to warm my fingers as the telescope started taking exposures. That's one wonderfully convenient luxury of a backyard. Still, I didn't lose that early morning magic, when all seems still, even in the heart of a city - breathless with anticipation for the rising Sun. There's just nothing quite like that feeling of being outside with a telescope in the hours before dawn, gazing millions of years back in time and space.