NGC 819

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NGC 819
NGC819 - SDSS DR14.jpg
NGC 819 (SDSS)
Observation data (J2000.0 epoch)
Constellation Triangulum
Right ascension 02h 08m 34.40s [1]
Declination +29° 14′ 03.00″ [1]
Redshift 0.021935 [1]
Heliocentric radial velocity 6576 ± 10 km/s [1]
Distance 302 Mly
Apparent magnitude  (V)13.40 [2]
Apparent magnitude  (B)14.30 [2]
Characteristics
Type S? [1]
Apparent size  (V)0.6 x 0.4 [2]
Other designations
IRAS 02056+2859, UGC 1632, PGC 8174, CGCG 504-017

NGC 819 is a spiral galaxy approximately 302 million light-years away from Earth in the constellation of Triangulum. [1] [3] It forms a visual pair with the galaxy NGC 816 5.7' WNW. [4]

Contents

Discovery

NGC 819 was discovered by German astronomer Heinrich Louis d'Arrest on September 20, 1865 with the 11-inch refractor at Copenhagen. [4] Édouard Stephan independently found the galaxy again on September 15, 1871 with the 31" reflector at Marseille Observatory. [4]

Supernovae

Three supernovae have been observed in NGC 819:

See also

References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved March 4, 2019.
  2. 1 2 3 "Revised NGC Data for NGC 819". spider.seds.org. Retrieved March 4, 2019.
  3. ↑ "NGC 819" . Retrieved March 4, 2019.
  4. 1 2 3 "Data for NGC 819". www.astronomy-mall.com. Retrieved March 4, 2019.
  5. 1 2 3 "Transient Name Server (TNS): SN 2007hb". wis-tns.weizmann.ac.il. Retrieved March 4, 2019.
  6. 1 2 3 "Transient Name Server (TNS): SN 2016hkn". wis-tns.weizmann.ac.il. Retrieved March 4, 2019.
  7. ↑ "SN 2020mbe". Transient Name Server. IAU . Retrieved 5 September 2024.
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