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NGC 999

From Wikipedia, the free encyclopedia

NGC 999
DSS image of NGC 999
Observation data (J2000 epoch)
ConstellationAndromeda
Right ascension02h 38m 47.46177s[1]
Declination+41° 40′ 13.6652″[1]
Redshift0.015097[2]
Heliocentric radial velocity4492 km/s[2]
Distance195.0 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]

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  • The Early Universe - Professor Carolin Crawford

Transcription

See also

References

  1. ^ 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.
  2. ^ a b c d "NGC 999". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-06-03.
  3. ^ 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.
  4. ^ "Results for object NGC 0999 (NGC 999)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-06-03.
  5. ^ "Revised NGC Data for NGC 999". spider.seds.org. Retrieved 2020-02-10.


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This page was last edited on 23 May 2023, at 18:38
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