Deep Sky / Long Exposure Photography

M6 and M7 widefield

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M6, M7 open clusters in Scorpius, and surrounds. One of the first shots from my new Nikon D70 DSLR.

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Long Exposure Photography

M16 and M17 from Brentwood

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The Eagle Nebula in Serpens, M16 The Swan Nebula in Serpens, M17 Film: E200 Camera: K-1000 Lens: ED80 (600mm f/7.5), prime focus Guiding: ST-4 Exposure: Stack of 5 frames, 3×15min, 2×30min Date: […]

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Long Exposure Photography

Star trails – Polaris

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Star Trails, Polaris region. May 28, 2004. Fixed tripod, 60 minute exposure.

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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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