NGC 840

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NGC 840
NGC840 - SDSS DR14.jpg
SDSS image of NGC 840
Observation data (J2000 epoch)
Constellation Cetus
Right ascension 02h 10m 16.21932s [1]
Declination +07° 50′ 43.4000″ [1]
Redshift 0.024143 [2]
Heliocentric radial velocity 7151 km/s [2]
Distance 303.0  Mly (92.90  Mpc) [3]
Apparent magnitude  (V)13.42 [4]
Apparent magnitude  (B)14.30 [4]
Characteristics
Type SB(r)b [5]
Other designations
UGC 1664, MCG +01-06-049, PGC 8293 [2]

NGC 840 is a barred spiral galaxy in the constellation Cetus south of the ecliptic. It is estimated to be about 300 million light-years from the Milky Way [3] and has a diameter of approximately 175,000 ly. [6] [7] [8]

Contents

See also

References

  1. 1 2 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. 1 2 3 "NGC 840". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-05-24.
  3. 1 2 Tully, R. Brent; Courtois, Hélène M.; Sorce, Jenny G. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv: 1605.01765 . Bibcode:2016AJ....152...50T. doi: 10.3847/0004-6256/152/2/50 . S2CID   250737862. 50.
  4. 1 2 "Search specification: NGC 840". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2020-05-24.
  5. ↑ "Results for object NGC 0840 (NGC 840)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-05-24.
  6. ↑ Ford, Dominic. "The galaxy NGC 840 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-18.
  7. ↑ "NGC 840". sim-basic. Retrieved 2020-03-18.
  8. ↑ "Revised NGC Data for NGC 840". spider.seds.org. Retrieved 2020-03-18.


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