PGC 85570
| Galaxy LEDA / PGC 85570 |
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|---|---|
![NGC 7720 with LEDA 71991 (?), LEDA 85575, LEDA 85570, 2MASX J23382548 + 2701496, LEDA 85563 (from left to right) [1]](https://de.wikipedia.org/wiki/Datei:NGC7720_-_SDSS_DR14.jpg)
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| NGC 7720 with LEDA 71991 (?) , LEDA 85575 , LEDA 85570, 2MASX J23382548 + 2701496 , LEDA 85563 (vLnR) | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 23 h 38 m 29.540 s |
| declination | + 27 ° 02 ′ 05.07 ″ |
| Appearance | |
| Morphological type | E. |
| Brightness (visual) | 14.5 mag |
| Brightness (B-band) | 15.5 mag |
| Angular expansion | 0.2 'x 0.2' |
| Surface brightness | 10.9 mag / arcmin² |
| Physical data | |
| Affiliation | Abell 2634 |
| Redshift | 0.027032 ± 0.000050 |
| Radial velocity | 8104 ± 15 km / s |
|
Stroke distance v rad / H 0 |
(370 ± 26) x 10 6 ly (113.5 ± 8.0) Mpc |
| history | |
| Catalog names | |
| NGC 7720A • NGC 7720-2 • UGC 12716 N02 • PGC 85570 • CGCG CGCG 476-091 N02 • MCG + 04-55-036 N02 • 2MASS J23382953 + 2702051 • SDSS J233829.52 + 270205.2 • AGC 331456 • KPG 588B | |
LEDA / PGC 85570 ( NGC 7720-2 ) is an elliptical dwarf galaxy of the Hubble type E in the constellation Pegasus in the northern sky . It is estimated to be 370 million light years from the Milky Way and about 20,000 light years across. Together with NGC 7720 , it forms the gravitationally bound galaxy pair KPG 588 .
In the same area of the sky are u. a. the galaxies NGC 7726 , NGC 7728 , IC 5341 , IC 5342 .
The object was discovered by Wilhelm Herschel on September 10, 1784 .
