Deep Sky / Long Exposure Photography

M45, The Pleiades in Taurus

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Well, it’s been awhile since I’ve been out in the observatory. I pulled the camera in favor of an eyepiece at one point, and just never really got back to putting the […]

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Deep Sky / Long Exposure Photography

NGC 7000, The North America Nebula

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Last night, I mistakenly ran without a light-pollution filter, and that really threw off the white balance. With a quick run back through focusing &c, the trusty (and only somewhat dusty) IDAS-LPS […]

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Deep Sky / Gear / General / Long Exposure Photography / Maintenance / Telescope

Trixie out, Pumpkin in

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I had decided that I would leave Trixie on the mount, and focus on visual astronomy for awhile. I think that the Jr. Astronomer would appreciate learning to use the big scope, […]

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Long Exposure Photography / Techniques

Star Trails over Ad Astra Observatory

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It’s been awhile since I did any star trails photography. It’s pretty simple — camera, tripod, point it at your target, and let it rip. I figured this would make a handsome […]

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Camera / Deep Sky / Gear / Long Exposure Photography

An evening with a friend

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The Jr. Astronomer decided to call it a night early, but her cousin, L_, was staying the night, and he wanted to learn about the sky, so we stayed up real late […]

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Deep Sky / Long Exposure Photography / Observatory

This is starting to get fun again.

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Let me be frank. There are many, many things that need fixing around Hilltop O. Chasing the dome around has been a joy, actually, learning the ropes of this young ship, just […]

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Deep Sky / Long Exposure Photography

Two targets, all 20m subframes, woot!

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Thus begins a new era. First, a little history. When I built the observatory in Newark, CA, the light pollution was so bad that the sky never got darker than about brownish-pink […]

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Deep Sky / Long Exposure Photography

OK, I need to stop shooting 5m subframes.

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I decided to go after The Owl Nebula, as I’ve only gotten one shot of it previously, despite years of hunting in Ursa Major. So I caught half an hour of it, […]

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Deep Sky / Long Exposure Photography

Still dipping my toes in the water

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I did not quite get plate solving working today. That is, I solved this image, but I couldn’t get the mount to even try to re-center on the new coordinates, and I […]

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

Bootstrapping the software rig

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Hilltop Observatory got a few clear nights to play around with the new software rig. The “capture” part of the process is decently well-behaved already — I almost have plate solving working […]

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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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