NGC 891 in Andromeda

NGC 891 in Andromeda

Caldwell 23

Constellation: Andromeda
Ra: 2hr 22m 33s
Dec: +42d 20m 57s
Distance: 30 million light years
Image Size: 36' x 36'
North: Upper left



NGC 891 (Caldwell 23) is an edge-on galaxy in Andromeda and is 30 million light years distant.. It has an apparent width of 13.5′ and a magnitude of 10.8. NGC 891 is a member of a small group of galaxies, sometimes called the NGC 1023 group, which also contains NGCs 925, 949, 959, 1003, 1023, and 1058 as well as UGCs 1807, 1865 (DDO 19), 2014 (DDO 22), 2023 (DDO 25), 2034 (DDO 24), and 2259. Supernova 1986J was discovered in NGC 891 by van Gorkom, Rupen, Knapp, Gunn on August 21, 1986 and reached mag 14. The small, distored mag 16.3 galaxy and the bottom center is PGC9101

Exposure: 16 hrs Total; 7 hrs Lum, 9 hrs RGB
Telescope: RCOS 16
Mount: Software Bisque Paramount ME
Oag: Astrodon MonsterMOAG
Acquisition: CCD AutoPilot4
Calibration: CCDStack2
Observatory Site: Sierra-Remote Observatories, Shaver Lake, CA
Camera: Apogee U16M
Filters: Astrodon Gen 2 LRGB
Guider: SBIG ST-402
Camera Operation: MaximDL4.62
Processing: Photoshop CS5 Extended
Image Date: 09/04/2010 - 09/10/2010

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