IC 1181
Galaxy IC 1181 |
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IC 1181 (below) & IC 1178 with LEDA 1536659 (r), SDSS image | |
AladinLite | |
Constellation | Hercules |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 16 h 05 m 33.8 s |
declination | + 17 ° 35 ′ 37 ″ |
Appearance | |
Morphological type | SAB (rs) 0 / a |
Brightness (visual) | 15.0 mag |
Brightness (B-band) | 15.9 mag |
Angular expansion | 0.8 ′ × 0.4 ′ |
Position angle | 70 ° |
Surface brightness | 13.6 mag / arcmin² |
Physical data | |
Affiliation | Abell 2151 |
Redshift | 0.033066 ± 0.000047 |
Radial velocity | 9913 ± 14 km / s |
Stroke distance v rad / H 0 |
(447 ± 31) · 10 6 ly (137.1 ± 9.6) Mpc |
history | |
discovery | Lewis Swift |
Discovery date | June 3, 1888 |
Catalog names | |
IC 1181 • UGC 10189 • PGC 057063 • CGCG 108-120S • MCG + 03-41-098 • 2MASX J16053387 + 1735368 • Arp 172 • VV 194b • |
IC 1181 is a lenticular galaxy of the Hubble type SB0 / a in the constellation Hercules in the northern sky . It is an estimated 447 million light-years away from the Milky Way and about 135,000 light-years across. The galaxy is considered a member of the Hercules galaxy cluster Abell 2151 and together with IC 1178 forms the interacting 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 Type Ia supernova SN 2008ek was observed here.
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
- SIMBAD Astronomical Database
- ARP ATLAS OF PECULIAR GALAXIES
- Seligman Arp
- Spectrum .de: Labeled surrounding image