Arp 25 / NGC 2276

Designation(s)Arp 25, NGC 2276
Object Type(s)Galaxy
Relevant Catalog(s)All (Chron), Arp, NGC
Arp CategorySpiral galaxies with one heavy arm
Obs. Lat/Long42° 17', 073° 57'
ConstellationCepheus
Date and Time Observed2024-04-15 21:30:00
InstrumentEdgeHD 8" f10-2,032mm FL
CameraASI294mc-Pro
Image DetailsUp is 90.9 degrees E of N. Total integration time was 42m. Exposures 30s@305g, UV/IR Cut Filter. 45% illuminated moon, but we were pointing away from it. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding..
DescriptionArp 25 (upper left) was visible from the first light frame. Arp 114's center looked like a bright star at first and capturing the rest of its disc required most of the integration time of 40m. I presume Arp concluded the two galaxies were perturbing each other because of the "one heavy arm" in Arp 25 that is stretched in the direction of Arp 114.
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