Astronomy:NGC 687
From HandWiki
Short description: Galaxy in constellation Andromeda
| NGC 687 | |
|---|---|
 Pan-STARRS image of NGC 687 | |
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 01h 50m 33.2s[1] |
| Declination | 36° 22′ 15″[1] |
| Redshift | 0.016982[1] |
| Helio radial velocity | 5091 km/s[1] |
| Distance | 220 Mly (66 Mpc)[1] |
| Group or cluster | Abell 262 |
| Apparent magnitude (V) | 13.30[1] |
| Characteristics | |
| Type | S0[1] |
| Size | ~110,000 ly (33.6 kpc) (estimated)[1] |
| Apparent size (V) | 1.4 x 1.4[1] |
| Other designations | |
| CGCG 522-17, MCG 6-5-14, PGC 6782, UGC 1298[1] | |
NGC 687 is a lenticular galaxy located 220 million light-years away[2] in the constellation Andromeda. It was discovered by astronomer William Herschel on September 21, 1786[3] and is a member of Abell 262.[4][5][6][7]
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 "NASA/IPAC Extragalactic Database". Results for NGC 687. http://nedwww.ipac.caltech.edu/.
- ↑ "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+687&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "New General Catalog Objects: NGC 650 - 699" (in en-US). http://cseligman.com/text/atlas/ngc6a.htm#687.
- ↑ M., Garcia, A. (July 1993). "General study of group membership. II - Determination of nearby groups" (in en). Astronomy and Astrophysics Supplement Series 100: 47. ISSN 0365-0138. Bibcode: 1993A&AS..100...47G.
- ↑ Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups" (in en). The Astrophysical Journal 543 (1): 178–194. doi:10.1086/317070. ISSN 0004-637X. Bibcode: 2000ApJ...543..178G. http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:astro-ph/0001140.
- ↑ "Detailed Object Classifications". http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+0687.
- ↑ "NGC 687". http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+++687&NbIdent=query_hlinks&Coord=01+50+33.248+36+22+14.73&parents=5&submit=parents&siblings=164&hlinksdisplay=h_all.
External links
- NGC 687 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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