NGC 840

NGC 840
SDSS image of NGC 840
Observation data (J2000 epoch)
ConstellationCetus
Right ascension02h 10m 16.21932s[1]
Declination+07° 50′ 43.4000″[1]
Redshift0.024143[2]
Heliocentric radial velocity7151 km/s[2]
Distance303.0 Mly (92.90 Mpc)[3]
Apparent magnitude (V)13.42[4]
Apparent magnitude (B)14.30[4]
Characteristics
TypeSB(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]

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 "NGC 840". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-24.
  3. ^ a b 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. ^ a b "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.
  • Media related to NGC 840 at Wikimedia Commons


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