NGC 819

In this article we will explore the topic of NGC 819 from a comprehensive and detailed perspective. We will delve into its origins, evolution, impact and relevance today, with the aim of providing a deep and enriching understanding of NGC 819. Throughout our journey, we will address different aspects and approaches that will allow us to enrich our knowledge and reflect on the importance of NGC 819 in various contexts. From its influence on society to its implications in different areas, NGC 819 invites us to delve into its meaning and scope, and this article seeks to be a complete guide to delve into its fascinating universe.

NGC 819
NGC 819 (SDSS)
Observation data (J2000.0 epoch)
ConstellationTriangulum
Right ascension02h 08m 34.40s [1]
Declination+29° 14′ 03.00″ [1]
Redshift0.021935 [1]
Heliocentric radial velocity6576 ± 10 km/s [1]
Distance302 Mly
Apparent magnitude (V)13.40 [2]
Apparent magnitude (B)14.30 [2]
Characteristics
TypeS? [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]

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

Supernova SN 2007hb was discovered in NGC 819 on August 24, 2007 by Nearby Supernova Factory.[5] SN 2007hb had a magnitude of about 19.5 and was located at RA 02h08m34.0s, DEC +29d14m14s, J2000.0.[5][1] It was classified as a type Ib/c supernova.[5]

Supernova SN 2016hkn was discovered in NGC 819 on October 22, 2016 by Fabio Briganti.[6] SN 2014bu had a magnitude of about 17.2 and was located at RA 02h08m34.2s, DEC +29d14m11s, J2000.0.[6][1] It was classified as a type II supernova.[6]

Supernova SN 2020mbe (type Ic, mag. 18.6) was discovered in NGC 819 on 10 January 2020.[7]

NGC 819 (SDSS)

See also

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved March 4, 2019.
  2. ^ a b c "Revised NGC Data for NGC 819". spider.seds.org. Retrieved March 4, 2019.
  3. ^ "NGC 819". Retrieved March 4, 2019.
  4. ^ a b c "Data for NGC 819". www.astronomy-mall.com. Retrieved March 4, 2019.
  5. ^ a b c "Transient Name Server (TNS): SN 2007hb". wis-tns.weizmann.ac.il. Retrieved March 4, 2019.
  6. ^ a b c "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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