Astronomy:NGC 19
From HandWiki
| NGC 19 | |
|---|---|
 NGC 19 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 00h 10m 40.8673s[1] |
| Declination | +32° 58′ 58.633″[1] |
| Redshift | 0.015971[1] |
| Helio radial velocity | 4788 ± 2 km/s[1] |
| Distance | 202.16 ± 9.32 Mly (61.983 ± 2.857 Mpc)[1] |
| Group or cluster | NGC 7831 Group (LGG 1) |
| Apparent magnitude (V) | 13.99[1] |
| Characteristics | |
| Type | SB(r)bc |
| Size | ~73,300 ly (22.48 kpc) (estimated)[1] |
| Apparent size (V) | 1.2′ × 0.6′[1] |
| Other designations | |
| IRAS 00080+3242, UGC 98, MCG+05-01-046, PGC 759[1] | |
NGC 19 is a spiral galaxy in the Andromeda constellation. Its velocity with respect to the cosmic microwave background is 4,465±23 km/s, which corresponds to a Hubble distance of 214.8 ± 15.1 Mly (65.85 ± 4.62 Mpc).[1] However, 12 non-redshift measurements give a closer distance of 202.16 ± 9.32 Mly (61.983 ± 2.857 Mpc).[2] It was discovered by American astronomer Lewis Swift on 20 September 1885.[3][4] It is often incorrectly listed as a duplicate of NGC 21.[1]
NGC 7831 Group
According to A.M. Garcia, NGC 19 is a member of the NGC 7831 group (also known as LGG 1), which contains at least 18 galaxies, including NGC 13, NGC 20, NGC 21, NGC 39 NGC 43, NGC 7805, NGC 7806, NGC 7819, and NGC 7836.[5]
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 "Results for object NGC 0019". https://ned.ipac.caltech.edu/byname?objname=NGC+0019.
- ↑ "Distance Results for NGC 0019". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+0019.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 19". https://cseligman.com/text/atlas/ngc0.htm#19.
- ↑ Swift, Lewis (January 1886). "Catalogue No.2 of Nebulae discovered at the Warner Observatory". Astronomische Nachrichten 113: 305. doi:10.1002/asna.18861131903. Bibcode: 1886AN....113..305S. https://ui.adsabs.harvard.edu/abs/1886AN....113..305S.
- ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series 100: 47. Bibcode: 1993A&AS..100...47G.
External links
- NGC 19 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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