NGC 1998

Last updated
NGC 1998
NGC 1998 NGC 1995 legacy dr10.jpg
NGC 1998, top-right from it is NGC 1995
Observation data (J2000.0 epoch)
Constellation Pictor
Right ascension 05h 33m 15.7s [1]
Declination −48° 41 44 [1]
Redshift 0.015137 [2]
Heliocentric radial velocity 4538 [2]
Distance 207 million
Apparent magnitude  (V)14.3 [3]
Apparent magnitude  (B)15.2 [3]
Characteristics
Type SO
Size0.90 x 0.5 arc minutes [3]
Other designations
ESO 204-15, PGC 17434

NGC 1998 (also known as ESO 204-15, PGC 17434) is a lenticular galaxy located in the Pictor constellation. It was discovered by John Herschel on December 28, 1834 [4] and is about 207 million light-years from the Milky Way. Its apparent magnitude is 14.3. [3] and its size is 0.90 by 0.5 arc minutes. [3] In some sources such as SIMBAD, it is misidentified as nearby double star NGC 1995. [2]

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References

  1. 1 2 "NED results for object NGC 1998". NED. Retrieved 11 November 2017.
  2. 1 2 3 "NGC 1995". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 11 November 2017.
  3. 1 2 3 4 5 "Object: NGC 1998 (*)". SEDS. Retrieved 11 November 2017.
  4. "Galaxy NGC 1998". cseligman. Retrieved 11 November 2017.