Astronomy:NGC 846
From HandWiki
| NGC 846 | |
|---|---|
 A PanSTARRS (PanS) image of NGC 846 | |
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 02h 12m 12.60s[1] |
| Declination | +44° 34′ 05.0″[1] |
| Redshift | 0.017065 ± 2.60e-5[1] |
| Distance | 235 Mly (72.26 Mpc)[1] |
| Apparent magnitude (V) | 12.3[1] |
| Characteristics | |
| Type | SB(rs)ab[1] |
| Size | 162,000 ly[1] |
| Apparent size (V) | 1.95′ × 1.698′[2] |
| Notable features | N/A |
| Other designations | |
| IRAS 02090+4420, NGC 847, UGC 1688, MCG+07-05-024, PGC 8430[1] | |
NGC 846 (also known as NGC 847) is a barred spiral galaxy located around 235 million light-years away in the constellation Andromeda.[1][3][2] NGC 846 was discovered on November 22nd, 1876 by the French astronomer Édouard Stephan, and it has a diameter of around 162,000 light-years.[1][3][2] NGC 846 is not known to have much star-formation, and it is not known to have an active galactic nucleus.[1][3][4]
Supernovae
Two supernovae have been observed in NGC 846:
- SN 2003ja (type II, mag. 17.1) was discovered by the Lick Observatory Supernova Search (LOSS) on 22 October 2003.[5][6]
- SN 2009fu (type Ia, mag. 15.7) was discovered by Kōichi Itagaki on 1 June 2009.[7][8]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "By Name | NASA/IPAC Extragalactic Database". https://ned.ipac.caltech.edu/byname?objname=ngc+846&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1.
- ↑ 2.0 2.1 2.2 "NGC 846 - Galaxy - WIKISKY". https://wikisky.org/starview?object_type=2&object_id=3095.
- ↑ 3.0 3.1 3.2 "New General Catalog Objects: NGC 800 - 849". https://cseligman.com/text/atlas/ngc8.htm#846.
- ↑ "NGC 846 - Barred Spiral Galaxy in Andromeda | TheSkyLive.com". https://theskylive.com/sky/deepsky/ngc846-object.
- ↑ Moore, M.; Li, W.; Filippenko, A. V.; Chornock, R.; Jha, S. (2003). "Supernova 2003ja in NGC 846". International Astronomical Union Circular (8231): 1. Bibcode: 2003IAUC.8231....1M. http://www.cbat.eps.harvard.edu/iauc/08200/08231.html#Item1.
- ↑ "SN 2003ja". IAU. https://www.wis-tns.org/object/2003ja.
- ↑ Nakano, S.; Itagaki, K.; Kiiyota, S. (2009). "Supernova 2009fu in NGC 846". Central Bureau Electronic Telegrams 1832: 1. Bibcode: 2009CBET.1832....1N. http://www.cbat.eps.harvard.edu/cbet/001800/CBET001832.txt.
- ↑ "SN 2009fu". IAU. https://www.wis-tns.org/object/2009fu.
External links
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