NGC 1631

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Galaxy
NGC 1631
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NGC 1631 [1]
NGC 1631
AladinLite
Constellation Eridanus
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 04 h 38 m 24.17 s
declination -20 ° 38 ′ 59.5 ″
Appearance
Morphological type (R:) SA (rs) a  
Brightness  (visual) 13.4 mag
Brightness  (B-band) 14.3 mag
Angular expansion 1.5 ′ × 0.9 ′
Position angle 44 °
Surface brightness 13.6 mag / arcmin²
Physical data
Redshift 0.031001 ± 0.000023  
Radial velocity 9294 ± 7 km / s  
Stroke distance
v rad  / H 0 		(410 ± 29)  ·  10 6  ly
(125.6 ± 8.8)  Mpc 
history
discovery John Herschel
Discovery date December 11, 1835
Catalog names
NGC  1631 • PGC  15705 • ESO  551-021 • MCG  -03-12-017 • IRAS  04362-2045 • 2MASX  J04382417-2038594 • SGC  043614-2044.8 • WISEA J043824.15-203859.5

NGC 1631 is a lenticular galaxy of the Hubble type SB0 / a in the constellation Eridanus in the southern sky . It is an estimated 410 million light years from the Milky Way and about 185,000 light years in diameter.
In the same area of ​​the sky is u. a. the galaxy NGC 1640 .

The object was discovered by John Herschel on December 11, 1835 .

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e f SEDS : NGC 1631
  4. ↑ Seligman