NGC 7539
| Galaxy NGC 7539 |
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|---|---|
![NGC 7539 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC7539_-_SDSS_DR14.jpg)
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| NGC 7539 SDSS Recording | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 23 h 14 m 29.4 s |
| declination | + 23 ° 41 ′ 05 ″ |
| Appearance | |
| Morphological type | S0 |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 1.5 '× 1.2' |
| Position angle | 165 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.020174 ± 0.000140 |
| Radial velocity | 6048 ± 42 km / s |
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Stroke distance v rad / H 0 |
(279 ± 20) x 10 6 ly (85.4 ± 6.0) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | 17th August 1828 |
| Catalog names | |
| NGC 7539 • UGC 12443 • PGC 70783 • CGCG 475-048 • MCG + 04-54-035 • 2MASX J23142943 + 2341053 • NSA 168936 | |
NGC 7539 is a lenticular galaxy of the Hubble type S0 in the constellation Pegasus in the northern sky . It is an estimated 279 million light years away from the Milky Way and about 120,000 light years in diameter.
In the same area of the sky is u. a. the galaxy NGC 7568 .
The object was discovered by John Herschel on August 17, 1828 .