NGC 7838
| Galaxy NGC 7838 |
|
|---|---|
|
|
| NGC 7837 & NGC 7838, SDSS image | |
| AladinLite | |
| Constellation | fishes |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 06 m 53.9 s |
| declination | + 08 ° 21 ′ 03 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.5 mag |
| Angular expansion | 0.7 '× 0.3' |
| Position angle | 93 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.038713 ± 0.000107 |
| Radial velocity | (11,606 ± 32) km / s |
|
Stroke distance v rad / H 0 |
(524 ± 37) · 10 6 ly (160.7 ± 11.3) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | November 29, 1864 |
| Catalog names | |
| NGC 7838 • PGC 525 • CGCG 408-034 NED02 • MCG + 01-01-036 • 2MASX J00065396 + 0821027 • Arp 246 NED02 • GALEX ASC J000653.76 + 082102.9 | |
NGC 7838 is a galaxy of Hubble type S? in the constellation Pisces on the ecliptic . It is estimated to be 524 million light years from the Milky Way and about 105,000 light years in diameter . Together with NGC 7837 , it forms the interacting galaxy pair Arp 246 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class galaxies showing signs of splitting .
In the same area of the sky there are still u. a. the galaxies NGC 3 , NGC 7834 , NGC 7835 , NGC 7840 .
The object was discovered by Albert Marth on November 29, 1864 .
Web links
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