Yet another M42 image…

After a very long summer-break in Astrophotography, I found myself with time on hand on a clear evening. After I did a series of 4 300s images for the Plejades (see below) I set the scope up to capture a few light frames on M42, the Great Orion nebula. But while I was sitting in the living room trying to get warm again, watching the Soccer Champions League, the D200’s battery ran empty, and I ended up with only one long exposure. I used the single 300s exposure with a much shorter exposure to get some detail in the very bright center of the nebula to get this picture.

Telescope:
Astro Professional 80ED f/7, TS Flattener
Camera
Nikon D200
Exposure:
1x 300s, ISO 800
Date:
9th December 2009

While waiting for Orion to rise out of the murky atmosphere near the horizon, I took a series of 4 images of the Plejades. Trying to focus the camera on the 80mm drove me crazy this time, after 30min of fiddling with focus I managed to convince myself that the image is now sharp enough (using a Bahtinov Mask) but after I downloaded the pictures to the PC I found them to be very unsharp. I got some information from the scope vendor on how to adjust (basically) loosen the focuser, let’s see how it works out…

Telescope:
Astro Professional 80ED f/7, TS Flattener
Camera
Nikon D200
Exposure:
4x 300s, ISO 800
Date:
9th December 2009

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