Deep Sky / Long Exposure Photography

NGC6939, Open Cluster in Cygnus

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Again, Cygnus is not really my first thought when it comes to open clusters (at least, not ones that seem to have no nebulosity surrounding them). But this cluster could rival anything […]

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Deep Sky / Long Exposure Photography

NGC6946, Spiral Galaxy in Cygnus

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Cygnus is not generally the area of sky you think of when you think “hey, showpiece galaxy”. But here you go. NGC 6946 has been dodging me for years, so I decided […]

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Deep Sky / Long Exposure Photography

NGC4565, Edge-on Spiral Galaxy in Coma Berenices

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Normally, I don’t go in much for edge-on galaxies. I just don’t think that I really get enough pixels to work with for the amount of effort that goes in. But NGC4565 […]

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Deep Sky / Long Exposure Photography

M100, Spiral Galaxy in Virgo

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Another night hunting galaxies in Virgo. This time I went after M100, which I was pretty certain to be a spiral. I had some initial difficulty getting Elbrus working. It took about […]

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Astro knowledge / Deep Sky / General / Long Exposure Photography / Technology

M87, Elliptical Galaxy in Virgo

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I have avoided the Virgo Galaxies for years. The reasons are many, but chief among them is that a lot of the Virgo galaxies are elliptical, which essentially means that they look […]

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General

Delayed start

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I had some tuning to do tonight before I could get started. That ate most of my effective imaging time. I decided to shoot without the Ha filter, which meant going back […]

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Deep Sky / Long Exposure Photography

Ha and Light pollution and Springtime

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When I got home today, I tried to process the stack that MaxIM had created of my M81 shot from last night. That didn’t go well. So I re-stacked the subframes in […]

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Deep Sky / Long Exposure Photography

Imperfection

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Another long clear night. Since the webcam was already installed and focused, I started the evening working WCS to refine my polar alignment. Azimuth was essentially perfect. Elevation started around 200 and […]

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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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Deep Sky / Gear / Long Exposure Photography / Mount / Telescope

Veronica gets a shot at the NJP

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Buoyed with the success of the NJP with Pumpkin, I decided to start upping the ante. Pumpkin was mounted offset to one side, but I decided that Veronica should be balanced over […]

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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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