NGC 7769

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Galaxy
NGC 7769
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NGC 7769 [1] SDSS image
NGC 7769 SDSS image
AladinLite
Constellation Pegasus
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 23 h 51 m 03.97 s
declination + 20 ° 09 ′ 01.5 ″
Appearance
Morphological type (R) SA (rs) b / HII / LINER  
Brightness  (visual) 12.0 mag
Brightness  (B-band) 12.8 mag
Angular expansion 3.2 '× 2.7'
Position angle 170 °
Surface brightness 14.2 mag / arcmin²
Physical data
Affiliation WBL 726
NGC 7771 group
LGG 483  
Redshift 0.014046 ± 0.000007  
Radial velocity 4211 ± 2 km / s  
Stroke distance
v rad  / H 0 		(195 ± 14)  ·  10 6  ly
(59.9 ± 4.2)  Mpc 
diameter 180,000 ly
history
discovery William Herschel
Discovery date September 18, 1784
Catalog names
NGC  7769 • UGC  12808 • PGC  72615 • CGCG  455-054 • MCG  + 03-60-030 • IRAS  23485 + 1952 • KUG  2348 + 198A • 2MASX  J23510396 + 2009014 • Mrk  9005 • GC  5020 • H  II 230 • h  2274 • GALEX ASC J235103.91 + 200901.9 • LDCE 1598 NED001 • HOLM 820C • KTG 82A

NGC 7769 is an active spiral galaxy with extensive star formation regions of the Hubble type Sb in the constellation Pegasus in the northern sky . It is estimated to be 180 million light-years from the Milky Way and about 105,000 light-years across. Together with NGC 7770 and NGC 7771 , it forms the galaxy trio Holm 820 or KTG 82A and is a member of the NGC 7771 group ( LGG 483 ).

The Supernova SN 2019iex was observed here.

The object was discovered on September 18, 1784 by the astronomer William Herschel .

Web links

Commons : NGC 7769  - collection of images, videos, and audio files

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e f SEDS : NGC 7769
  4. ^ VizieR
  5. ↑ Simbad
  6. ↑ Seligman