Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  HD4143  ·  HD4174  ·  HD4322  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 206  ·  NGC 221  ·  NGC 224
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M31 first object with my new AM5 Mount w/some back story in the description of the image, Anthony (Tony) Johnson
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M31 first object with my new AM5 Mount w/some back story in the description of the image

Getting plate-solving status, please wait...
M31 first object with my new AM5 Mount w/some back story in the description of the image, Anthony (Tony) Johnson
Powered byPixInsight

M31 first object with my new AM5 Mount w/some back story in the description of the image

Equipment

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Acquisition details

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Description

Finally after months of saving I was finally able to realize getting a ZWO AM5 mount and retiring my LX200. Had some issues first night out with a faulty USB cable which caused havoc with the mount. Fixed that and was able to get 5hrs 52mins of integration on M31 on my second night with the mount, so this is my first actual image but the second time using the mount. This image is the result of not using any flats. I did use Darks and Bias frames but my flats were ruined. While I was setting up my initial shot of M31 I used the ASIAir to frame the image by rotating the camera until I got the rotation angle that I wanted. Went through the whole evening without a hitch. Everything worked like a dream. The ASIair coupled with the AM5 mount, for me was a huge upgrade from what I was using, the LX200 that was over 30 years old. Polar alignment, my first time out took all of 7mins. Slewing to the object then letting the ASIAir plate solve and recenter the object worked flawlessly, I did nothing. Framing up the image was as easy as it gets. Anyway back to why I didn't use flats to calibrate. After my session was over and I had acquired the number of lights that I wanted, I slewed the telescope to point to the zenith so that after the darks were taken I could just lay my flat light panel on the end of the scope to take my flats. About 5 dark frames in I heard a thunk as my camera slipped out to the back of the scope and hit my driveway, I guess in rotating my camera to frame up my image, I must of not tightened the setscrews tight enough. First thought was, well I get my new mount and loose my camera on the first night out. I went out to check on the damage to my camera and to my surprise there wasn't any. So I remounted the camera and slewed to the star Enif to see if the camera would work and refocus. It did much to my relief, but as I'm sure any of you reading this know that to take your flats properly you need to leave the camera rotation the same as with the lights, this would not be the case in this situation. I tried to get the rotation angle as best I could and said what the heck, take them anyway and cross my fingers. I processed the images with defective flats which did not work out at all, I think I ended up with more dust bunnies than less. So I remembered one of the guys I follow on YouTube mentioned scripts you could download for Siril, and one just happened to give you the ability to process with lights, dark, and biases, but no flats. So this is the result of that effort. Not too bad, considering I was using a unmodded Canon DSLR with a LP filter and no flats and 2min exposures which can cause a lot of noise, camera sensor temp was around 17deg C. Not something I want to have happen again, but glad I was able to salvage the image given the fact that I spent 7hrs in total getting it.

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