Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  M 81  ·  NGC 3031
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M81 - 2/6/24, Ed Dixon
M81 - 2/6/24
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M81 - 2/6/24

Getting plate-solving status, please wait...
M81 - 2/6/24, Ed Dixon
M81 - 2/6/24
Powered byPixInsight

M81 - 2/6/24

Equipment

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Acquisition details

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Description

After some chat with a fellow astro club member about his successful use of the ZWO ASIAIR+ red box, I decided to try it again.  I had done little with it in the past and had not figured out how to do the basic things like autofocus and framing.  I spent about 3 hours or so with it on 2/6/24 here at home. It took an hour or so just to figure out how to get autofocus working, guiding, and the other basics.  For this test I used my Celestron C6N which is a 750mm focal length scope I have used little before.  This was done with my iOptron HEM27 mount.  I used an older ZWO ASI485MC uncooled camera, since the wiring for that combo is simpler than the ASI2600MC. 

I used my iPad to run the ASIAIR from inside my dining room.  Using WiFi is many times slower than a direct wired miniPC, but it works.  The setup time is quicker with this combo and there are fewer wires involved.  One interesting comparison is autofocus on the ASIAIR compared to the SeeStar scope.  The SeeStar is many times faster in that area.

I ended up collecting a few 2 minute exposures of M81 before it got too late.  Today I downloaded all the files (had to remember how to do that again) from the ASIAIR and worked on them with Pixinsight.  This is the result that came out the other end.

When I get another clear night I want to repeat this, perhaps from the parkway, and use the better camera.

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M81 - 2/6/24, Ed Dixon