Deep Sky / Gear / Long Exposure Photography

M31, The Great Andromeda Galaxy

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Another treatment of the same data (Reprocessed March 18,2005): Film: E200 Camera: K-1000 Lens: ED80 (600mm f/7.5), prime focus Guiding: ST-4 Exposure: stack of 11 images, 7×20min, 4×45min Date: September 9, 2004

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Deep Sky / Long Exposure Photography

M45, The Pleiades Cluster in Taurus

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The Pleiades Cluster in Taurus, M45 Film: E200 Camera: K-1000 Lens: ED80 (600mm f/7.5), prime focus Guiding: ST-4 Exposure: 20min Date: September 7, 2004

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Deep Sky / Gear / Long Exposure Photography

M20, The Trifid Nebula in Sagittarius

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Film: E200 Camera: K-1000 Lens: ED80 (600mm f/7.5), prime focus Guiding: ST-4 Exposure: 12min Date: September 12, 2004 Object was setting over the top of the house as I shot. This was […]

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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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