NGC 2

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Galaxy
NGC 2
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NGC 1 & NGC 2, SDSS image
NGC 1 & NGC 2, SDSS image
AladinLite
Constellation Pegasus
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 00 h 07 m 17.1 s
declination + 27 ° 40 ′ 42 ″
Appearance
Morphological type Sab  
Brightness  (visual) 14.2 mag
Brightness  (B-band) 15.0 mag
Angular expansion 0.9 ′ × 0.5 ′
Position angle 110.2 °
Surface brightness 13.5 mag / arcmin²
Physical data
Redshift 0.025174 ± 0.000007  
Radial velocity 7547 ± 2 km / s  
Stroke distance
v rad  / H 0
(345 ± 24)  x  10 6  ly
(105.7 ± 7.4)  Mpc 
history
discovery Lawrence Parsons
Discovery date August 20, 1873
Catalog names
NGC  2 • UGC  59 • PGC  567 • CGCG  477-055 / 478-027 • MCG  + 04-01-026 • 2MASX  J00071710 + 2740421 • GC  6246 • KCPG 2B • LDCE 2 NED003 • HOLM 002B • KPG 002B

NGC 2 is a spiral galaxy of Hubble type Sab in the constellation Pegasus at the northern sky . It is estimated to be 345 million light-years from the Milky Way and about 100,000 light-years across. Together with NGC 1 it forms the optical pair of galaxies Holm 2 or KPG 2 , but the former is about twice as far away, so there is no connection between these two galaxies.
In the same area of ​​the sky there are still u. a. the galaxies NGC 16 and NGC 22 .

The object was discovered on August 20, 1873 by the Irish astronomer Lawrence Parsons .

Web links

Commons : NGC 2  - collection of images, videos and audio files

Individual evidence

  1. a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e SEDS : NGC 2
  3. LEDA: NGC 2
  4. Seligman