PGC 10139
| Galaxy LEDA / PGC 10139 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Perseus |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 40 m 37.7 s |
| declination | + 39 ° 03 ′ 27 ″ |
| Appearance | |
| Morphological type | IB? |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.3 mag |
| Angular expansion | 1.3 ′ × 0.7 ′ |
| Position angle | 14 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 1023 group LGG 70 |
| Redshift | 0.002478 ± 0.000003 |
| Radial velocity | 743 ± 1 km / s |
|
Stroke distance v rad / H 0 |
(38 ± 3) x 10 6 ly (11.77 ± 0.83) Mpc |
| history | |
| Catalog names | |
| NGC 1023A • PGC 10139 • 2MASX i J0240377 + 390326 • LCSB L132 | |
LEDA / PGC 10139 (also NGC 1023A ) is an irregular dwarf galaxy of the Hubble type IBm in the constellation Perseus in the northern sky . It is estimated to be 38 million light-years from the Milky Way and about 10,000 light-years across. The galaxy is a close companion to its neighbor NGC 1023 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of elliptical galaxies with nearby fragments (Arp catalog) .
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