PGC 36228
| Galaxy LEDA / PGC 36228 |
|
|---|---|
![NGC 3808 (u) and NGC 3808A (o) [1]](https://de.wikipedia.org/wiki/Datei:NGC3808_-_SDSS_DR14.jpg)
|
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| NGC 3808 (u) and NGC 3808A (o) | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 40 m 44.6 s |
| declination | + 22 ° 26 ′ 49 ″ |
| Appearance | |
| Morphological type | I0? pec / HII |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.4 mag |
| Angular expansion | 0.9 '× 0.3' |
| Position angle | 57 ° |
| Surface brightness | 12.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.023530 ± 0.000010 |
| Radial velocity | 7054 ± 3 km / s |
|
Stroke distance v rad / H 0 |
(313 ± 22) x 10 6 ly (96.0 ± 6.7) Mpc |
| history | |
| Catalog names | |
| NGC 3808A • 3808B • UGC 6643 N02 • PGC 36228 • CGCG 127-025 N02 • 127-025N • MCG + 04-28-020 • IRAS 11381 + 2243 • 2MASX J11404456 + 2226479 • VCC 300b • Arp 87 • GALEX ASC J114044. 62 + 222649.3 • KPG 297B | |
LEDA / PGC 36228 (also NGC 3808A ) is a spiral galaxy with extensive star formation from Hubble type Sc in the constellation Leo north of the ecliptic . It is an estimated 316 million light years from the Milky Way and about 150,000 light years in diameter. Together with NGC 3808 , it forms the interacting galaxy pair ARP 87 or KPG 297 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class spiral galaxies with a large companion of high surface brightness on one arm (Arp catalog) .
In the same area of the sky are u. a. the galaxies NGC 3832 , NGC 3748 , NGC 3754 , NGC 3772 .
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