NGC 999
Appearance
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] |
Heliocentric 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 | |
UGC 2127, MCG 07-06-047, PGC 10026, CGCG 539-066[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 French astronomer Edouard Stephan on 8 December 1871.[5]
See also
[edit]References
[edit]- ^ a b Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
- ^ a b c d "NGC 999". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-06-03.
- ^ a b 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. arXiv:astro-ph/0610732. Bibcode:2007ApJ...655..790C. doi:10.1086/510201. S2CID 11672751.
- ^ "Results for object NGC 0999 (NGC 999)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-06-03.
- ^ "Revised NGC Data for NGC 999". spider.seds.org. Retrieved 2020-02-10.