Arp 9 / NGC 2523

Designation(s)Arp 9. NGC 2523
Object Type(s)Galaxy
Relevant Catalog(s)All (Chron), Arp, NGC
Arp CategorySpiral galaxies with split arms
Obs. Lat/Long42° 17', 073° 57'
ConstellationCamelopardalis
Date and Time Observed2024-02-02 19:30:00
Instrument8" EdgeHD SCT
CameraASI294mc-Pro
Image DetailsUp is 269.5 degrees E of N (West). Total integration time was 24m. Exposure 30s@305g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding.
DescriptionThis was a difficult night because of clouds. I set the brightness filters on SharpCap, but I was only able to capture 24 minutes in an over an hour, after which observing became impossible. While I would have preferred to spend more time on this target, the bar through the galactic center was very obvious, and the elongated, split arms on both ends were faintly visible. The original color images, which suffered terribly from color noise, were converted to grayscale and processed in Affinity Photo as a monochrome image. This brought out substantially more detail than was possible in RGB. NGC 2523 is a barred spiral which, along with its split arms, implies a mature galaxy with past interactions with other galaxies.
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