
December 4, 2022
Tonight was one of those relatively rare wintry nights in Washington, DC, where atmospheric transparency is high while seeing is better than average. With Mars just four days away from opposition -...
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23 entries from the observing journals.

December 4, 2022
Tonight was one of those relatively rare wintry nights in Washington, DC, where atmospheric transparency is high while seeing is better than average. With Mars just four days away from opposition -...
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November 25, 2022
For amateur astronomers, two things happen to the atmosphere around this time of year in Washington, DC: in general, transparency improves, and seeing - meaning, of course, stability - deteriorates....
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November 10, 2022
Autumn came early this year in Washington DC, yet the relative warmth of early autumn lingered well past its usual expiration date. The mosquitoes lingered with it, even if their population fell with...
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July 11, 2022
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...
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May 31, 2022
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...
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May 30, 2022
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...
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February 2, 2021
It has, to put it mildly, been an eventful ten weeks since I last wrote in this journal. We endured a sustained effort to subvert democracy and a frightening insurrection in the midst of what - we...
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November 21, 2020
On November 16th, the sky was clear and, after a glorious sunset, atmospheric seeing promised to be mediocre but transparency was predicted to be superb. With no Moon in the sky, conditions were...
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November 12, 2020
We've enjoyed maybe the best stretch of clear nights with good seeing that I've experienced since moving to Washington, DC, and I was out nearly every night with a telescope in hand. Between work,...
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October 18, 2020
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...
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October 6, 2020
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...
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September 8, 2020
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...
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September 6, 2020
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....
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August 20, 2020
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 -...
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August 10, 2020
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...
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July 27, 2020
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...
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July 12, 2020
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...
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July 3, 2020
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?...
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June 9, 2020
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...
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December 12, 2018
About a year ago, I picked up a Skywatcher 100ED: a "slow" (F/9) 100mm refractor. I haven't written much this year, but wow: suffice it to say, I rarely use any other telescope (and when I do, I come...
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February 2, 2017
After ogling the Orion Nebula in my new observing site on January 7, I got a little overzealous and made the mistake of returning with my AR 102 just after a rainstorm, on a humid night that soon...
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January 7, 2017
I received my Twilight I mount yesterday, and my 4-inch, AR 102 refractor arrived a few days earlier. It snowed in the afternoon, but cleared up around sunset. At the same time, I scouted a new...
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August 22, 2016
After a hot, clear day that lacked the crushing humidity I've come to associate with DC summers, I decided to take out my new 4-inch, Celestron Omni XLT refractor. Mars was just a few months from its...
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