NGC 7547
| Galaxy NGC 7547 |
|
|---|---|
![NGC 7547 [1] (SDSS image)](https://de.wikipedia.org/wiki/Datei:NGC7547_-_SDSS_DR14.jpg)
|
|
| NGC 7547 ( SDSS image) | |
| AladinLite | |
| Constellation | Pegasus |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 23 h 15 m 03.4 s |
| declination | + 18 ° 58 ′ 24 ″ |
| Appearance | |
| Morphological type | (R ') SAB (s) 0 / a: |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.1 '× 0.5' |
| Position angle | 98 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 700 |
| Redshift | 0.015918 ± 0.000033 |
| Radial velocity | (4772 ± 10) km / s |
|
Stroke distance v rad / H 0 |
(221 ± 15) x 10 6 ly (67.8 ± 4.7) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | August 26, 1827 |
| Catalog names | |
| NGC 7547 • UGC 12453 • PGC 70819 • CGCG 454-011 • MCG + 03-59-013 • 2MASX J23150347 + 1858245 • HCG 93C • GALEX ASC J231503.37 + 185825.9 • KTG 78A | |
NGC 7547 is a lens-shaped galaxy of the Hubble-type SAB0 / a in the constellation Pegasus. It is an estimated 221 million light years away from the Milky Way and about 70,000 light years in diameter. Together with NGC 7549 , NGC 7550 , NGC 7553 and NGC 7558 , it forms the galaxy group HCG 93 .
The object was discovered by John Herschel on August 26, 1827 .