IC 1178

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Galaxy
IC 1178
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LEDA 1536659, IC 1181 (below) & IC 1178, [1] SDSS image
LEDA 1536659 , IC 1181 (below) & IC 1178, SDSS recording
AladinLite
Constellation Hercules
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 16 h 05 m 33.1 s
declination + 17 ° 36 ′ 05 ″
Appearance
Morphological type S0-  
Brightness  (visual) 14.2 mag
Brightness  (B-band) 15.2 mag
Angular expansion 1 ′ × 0.9 ′
Position angle 36 °
Surface brightness 14.2 mag / arcmin²
Physical data
Affiliation Abell 2151
WBL 607  
Redshift 0.033687 ± 0.000033  
Radial velocity 10,099 ± 10 km / s  
Stroke distance
v rad  / H 0 		(456 ± 32)  ·  10 6  ly
(139.7 ± 9.8)  Mpc 
history
discovery Lewis Swift
Discovery date June 3, 1888
Catalog names
IC  1178 • UGC  10188 • PGC  057062 • CGCG  108-120 NED01 • MCG  + 03-41-097 • 2MASX  J16053310 + 1736048 • Arp  172 • VV  194a • USGC U741 NED21

IC 1178 is an elliptical galaxy of the Hubble type E / S0 in the constellation Hercules in the northern sky . It is estimated to be 456 million light years from the Milky Way and about 135,000 light years in diameter. The galaxy is a member of the Hercules galaxy cluster Abell 2151 and together with IC 1181 forms the galaxy pair Arp 172 .

Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class galaxies with diffuse opposing arms .

In the same area of ​​the sky are u. a. the galaxies NGC 6047 , NGC 6050 , IC 1183 , IC 1185 .

The object was discovered by Lewis Swift on June 3, 1888 .

literature

  • Jeff Kanipe and Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide , Richmond 2006, ISBN 978-0-943396-76-7

Web links

Individual evidence

  1. ^ Aladin Lite
  2. ↑ a b c d e NASA / IPAC EXTRAGALACTIC DATABASE
  3. ↑ a b c d e SEDS : IC 1178
  4. ↑ Seligman