NGC 998

NGC 998 is a spiral galaxy of the constellation Cetus. It is estimated to be 294 million light years from the Milky Way and has a diameter of approximately 90,000 ly. Together with NGC 997, it forms a gravitationally bound pair of galaxies. NGC 998 was discovered by astronomer Albert Marth on 10 November 1863 using a 48-inch telescope.[4][5][6]

NGC 998
NGC998 - SDSS DR14.jpg
SDSS image of NGC 998
Observation data (J2000 epoch)
ConstellationCetus
Right ascension02h 37m 16.50891s[1]
Declination+07° 20′ 08.7169″[1]
Redshift0.02184[2]
Helio radial velocity6476 km/s[2]
Distance303.7 ± 21.4 Mly (93.11 ± 6.56 Mpc)[3]
Apparent magnitude (B)14.6[2]
Absolute magnitude (V)-23.46 +/- 0.51[2]
Characteristics
TypeS?[2]
Other designations
MCG+01-07-015, PGC 9934[2]

See alsoEdit

ReferencesEdit

  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 e f "NGC 998". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-06-03.
  3. ^ "Results for object NGC 0998 (NGC 998)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-06-03.
  4. ^ "Revised NGC Data for NGC 998". spider.seds.org. Retrieved 2020-03-24.
  5. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-03-24.
  6. ^ Ford, Dominic. "The galaxy NGC 998 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-24.

External linksEdit

  •   Media related to NGC 998 at Wikimedia Commons