Astronomy:NGC 690
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Short description: Spiral galaxy in the constellation Cetus
| NGC 690 | |
|---|---|
 NGC 690 imaged by the Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 01h 47m 48.074s[1] |
| Declination | −16° 43′ 19.88″[1] |
| Redshift | 0.01721±0.00003[2] |
| Helio radial velocity | 5,160.03±9.89[2] km/s |
| Distance | 235.6 ± 16.5 Mly (72.25 ± 5.07 Mpc)[2] |
| Characteristics | |
| Type | SAB(s)c:[2] |
| Other designations | |
| AGC 410352, LEDA 6587[3] | |
NGC 690 is an intermediate spiral galaxy located in the constellation Cetus about 236 million light-years from the Milky Way. It was discovered by the American astronomer Francis Leavenworth in 1885.[4][5]
References
- ↑ 1.0 1.1 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S.
- ↑ 2.0 2.1 2.2 2.3 de Vaucouleurs, G. et al. (1991). Third reference catalogue of bright galaxies. 3.9. New York: Springer-Verlag.
- ↑ "NGC 690". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+690.
- ↑ Ford, Dominic. "The galaxy NGC 690 - In-The-Sky.org" (in en). https://in-the-sky.org/data/object.php?id=NGC690.
- ↑ "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+690&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#NR_Distances_0.
External links
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