IC 172

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Galaxy
IC 172
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SDSS image from IC 172
SDSS image from IC 172
AladinLite
Constellation whale
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 01 h 54 m 54.2 s
declination + 00 ° 48 ′ 40 ″
Appearance
Morphological type S?  
Brightness  (visual) 14.0 mag
Brightness  (B-band) 14.9 mag
Angular expansion 0.4 ′ × 0.3 ′
Position angle 90 °
Surface brightness 11.5 mag / arcmin²
Physical data
Redshift 0.027379 +/- 0.000020  
Radial velocity 8208 +/- 6 km / s  
Stroke distance
v rad  / H 0
(369 ± 26)  x  10 6  ly
(113.0 ± 7.9)  Mpc 
history
discovery Stephane Javelle
Discovery date December 12, 1893
Catalog names
IC  172 • PGC  7116 • CGCG  386-056 • MCG  + 00-05-049 • IRAS  01523 + 0033 • KUG  0152 + 005 • 2MASX  J01545425 + 0048399 • GALEX ASC J015454.11 + 004840.7

IC 172 is a radio galaxy of the Hubble type S? in the constellation whale south of the celestial equator . It is an estimated 369 million light years away from the Milky Way and has a diameter of around 40,000 ly.
In the same area of ​​the sky are the galaxies NGC 768 , IC 173 , IC 175 .

The object was discovered by Stéphane Javelle on December 12, 1893 .

Web links

Individual evidence

  1. a b c d NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d e f SEDS : IC 172
  3. Seligman

Attention: The sort key “IC 0172” overwrites the previously used key “IC0172”.