"This member of the Ursa Major Galaxy Cloud is about 55 million light years away from Earth and running away from us at an approximate speed of 1142 kilometers per second. However, it is not alone… It has companion galaxies as well – companions that may be contributing to M109’s bright central bar.
https://www.universetoday.com/50202/messier-109/“Detailed neutral hydrogen observations have been obtained of the large barred spiral galaxy NGC 3992 and its three small companion galaxies, UGC 6923, UGC 6940, and UGC 6969. " R. Bottemar (et al)
"Two supernovae have been observed within NGC 3953:on August 12th 2001 a Type Ia supernova called SN 2001dp, and on April 10th 2006 a Type II supernova called SN 2006bp."
http://annesastronomynews.com/photo-gallery-ii/galaxies-clusters/ngc-3953/Our first light in a Sbc Barred Spiral Galaxy, the M 109 pinned with the wonderful bright Phecda Star - Gamma Ursae Majoris. Mauri did a series of sessions on this target from Oct. 2019 until May 2020.
In the stack I could observe a problem of rotation in the acquisition that could be fixed and since this work we established a better way to orient the imaging session always in the same coordinates.
Far galaxies and faint are better for OTA that have more focal length and can bring back more detail of them, but as we were getting experience, it is always a good exercise imaging them.
Also that sky area of the galaxy has other noted galaxies and for the fun of it, I did a sort of collage detailing the most noted in the area shown in the Version B. The last Version is a cropped image that shows only M - 109.
Processed Feb 2, 2021
https://twitter.com/AstroOtus/status/1357716341692760065
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