Astro knowledge / Gear / General / Maintenance

Preparing to go unplugged

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As a test run before the Golden State Star Party this year, the family and I are going camping for the weekend at Coyote Lake. I haven’t been camping in quite some […]

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Gear / General / Maintenance / Mount

RA drift

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The NJP is displaying some RA drift. It’s easy enough to guide out, but it’s definitely strange. I need to gather more data. But I think that what I’m seeing is that […]

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General / Maintenance / Observing Reports

Bahtinov Mask, Business trip, and clouds

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I have a trip coming up tomorrow, so I was thinking about resting up before it. But then I got a crazy idea, and decided to follow through on it. I want […]

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General / Maintenance

minor maintenance

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I rebalanced the scope so that it’s balanced rather than purposely off-balance. I also added a 12v fan to the scope to hopefully help control dew. We’ll see if it does anything. […]

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Gear / General / Maintenance / Mount

NJP Meridian Flip madness

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I hacked my mount today. It was a small hack. Just two parameter settings. But I believe it will give me an important piece of functionality. Where to begin? The NJP, like […]

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General / Maintenance / Techniques

WCS lesson

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After getting the mount “close” last night but then moving the pier topper and redoing, I took a couple of runs at polar alignment tonight, too. One thing I definitely learned is […]

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Deep Sky / General / Long Exposure Photography / Maintenance / Observatory / Observing Reports

Five hours of Guided images

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…with zero dropped subframes. I spent a little time refining the polar alignment last night. I am still getting some drift while running unguided; I calculated it to be about 6′ from […]

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Gear / General / Maintenance / Mount

Settling in

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The paint is dry on the pier topper, so I remounted it in the observatory. As I put in each part, I checked that each was level. As I suspected, the top […]

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Gear / General / Maintenance / Mount

Setting up for the long haul

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I headed out to the observatory this morning to level the pier. I had originally planned on it being a quick task, then ready for tonight (which is supposed to have some […]

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General / Maintenance / Techniques

I want my WCS

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Polar alignment still sucks. Once I get the mount aligned, everything will be fine. Until then, it’s a bunch of hooey. I need to get the mount level, because, as usual, it’s […]

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Techniques

Polar Alignment Calculations

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Here’s a page that derives Polar Alignment Calculations. (update 5/2020: the original site is gone, so I found the text on Wayback and am inserting it below. This is by the original […]

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Gear / Observatory / Telescope

Special Guest Star takes the mount at Hilltop O

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The Astro Jedi needed somewhere to store his light sab—- I mean, bucket, and I was only too happy to accommodate him. I have decided that I need to come to a […]

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General / Maintenance / Observatory

Dome shutter is motorized again!

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I finally decided to bite the bullet and fix the shutter motor. Things went sideways last winter, and I’ve been opening the shutter manually (and tying it shut with rope, so we […]

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ATM

Trixie 2017 – tube mods

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I finally got around to cutting the MTA-UTA tubes to length; the only eyepiece that would come to focus with the focuser spacer in place is the Televue 55mm Plossl. If I […]

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