NGC 531
Galaxy NGC 531 |
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Image of the HCG 10 with an 80 cm telescope. NGC 531 is at the top left. | |
AladinLite | |
Constellation | Andromeda |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 01 h 26 m 18.9 s |
declination | + 34 ° 45 ′ 14 ″ |
Appearance | |
Morphological type | SB0 / a: |
Brightness (visual) | 14.0 mag |
Brightness (B-band) | 14.9 mag |
Angular expansion | 1.8 ′ × 0.5 ′ |
Position angle | 34 ° |
Surface brightness | 13.7 mag / arcmin² |
Physical data | |
Affiliation | LGG 26 |
Redshift | 0.015544 ± 0.000107 |
Radial velocity | 4660 ± 32 km / s |
Stroke distance v rad / H 0 |
(215 ± 15) · 10 6 ly (65.8 ± 4.6) Mpc |
history | |
discovery | RJ Mitchell |
Discovery date | October 16, 1855 |
Catalog names | |
NGC 531 • UGC 1012 • PGC 5340 • CGCG 521-024 • MCG + 06-04-020 • 2MASX J01261884 + 3445147 • HCG 10C • GC 312 • LDCE 0074 NED084 |
NGC 531 is a lenticular galaxy in the constellation Andromeda , which is about 215 million light years from the Milky Way . NGC 531 together with the galaxies NGC 529 , NGC 536 and NGC 542 form the Hickson Compact Group 10, abbreviated as HCG 10.
Johan Ludvig Emil Dreyer noted William Parsons as the discoverer . The observation was carried out on October 16, 1855, however, by his then assistant RJ Mitchell .