Astronomy:NGC 999
From HandWiki
Short description: Galaxy in the constellation Andromeda
| NGC 999 | |
|---|---|
 DSS image of NGC 999 | |
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 02h 38m 47.46177s[1] |
| Declination | +41° 40′ 13.6652″[1] |
| Redshift | 0.015097[2] |
| Helio radial velocity | 4492 km/s[2] |
| Distance | 195.0 Mly (59.80 Mpc)[3] |
| Apparent magnitude (B) | 14.5[2] |
| Characteristics | |
| Type | (R')SAB(s)a[4] |
| Other designations | |
| IC 240, UGC 2127, MCG+07-06-047, PGC 10026[2] | |
NGC 999 is an intermediate spiral galaxy located in the constellation Andromeda about 195 million light-years from the Milky Way.[3] It was discovered by the French astronomer Edouard Stephan in 1871.[5]
See also
References
- ↑ 1.0 1.1 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.
- ↑ 2.0 2.1 2.2 2.3 "NGC 999". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+999.
- ↑ 3.0 3.1 Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal 655 (2): 790–813. doi:10.1086/510201. Bibcode: 2007ApJ...655..790C.
- ↑ "Results for object NGC 0999 (NGC 999)". NASA/IPAC Extragalactic Database. California Institute of Technology. https://ned.ipac.caltech.edu/byname?objname=NGC%20999&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1.
- ↑ "Revised NGC Data for NGC 999". http://spider.seds.org/ngc/revngcic.cgi?NGC999.
 |  |
