AP#97 : NGC 7331
Name:No Name
Constellation:Pegasus
Instrument:
Image 1: 8-inch F5 reflector with Sky Watcher coma corrector and an ASI 2600MC (Gain 100 -20C).
Image 2: 8-inch F5 reflector with Sky Watcher coma corrector and an ASI 585 MC (Gain 200 -20C).
Exposure time:
Image 1: 16 five-minute and 9 three-minute exposures.
Image 2: 50 three-minute exposures.
Star Chart from Michael Vlasov's Deep sky hunter star atlas available on line https://www.deepskywatch.com/deep-sky-hunter-atlas.html
Magnitude: 10.4
Apparent size: 10.5' X 3.7'
This object is an unbarred spiral galaxy in Pegasus. While the galaxies next to the object appear to form a cluster with NGC 7331, they are not associated with it. NGC 7331 is a foreground object, while the other galaxies are much more distant than it. Included in the field of view is the cluster of galaxies identified as Stephen's quintet, which is at the bottom of the following image.
This is another image of the galaxy and Stephens Quintet shot with the telescope but using the ASI 585 astro camera. When this image was taken, a super nova was present (9/6/26) close to the core. The third image identifies the super nova.
