NGC 5303
| Galaxy NGC 5303 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 47 m 45.0 s |
| declination | + 38 ° 18 ′ 17 ″ |
| Appearance | |
| Morphological type | Sc / pec |
| Brightness (visual) | 12.4 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 0.9 ′ × 0.4 ′ |
| Position angle | 92 ° |
| Surface brightness | 11.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.004733 +/- 0.000023 |
| Radial velocity | 1419 +/- 7 km / s |
|
Stroke distance v rad / H 0 |
(67 ± 5) · 10 6 ly (20.4 ± 1.4) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | May 16, 1787 |
| Catalog names | |
| NGC 5303, 5303A • UGC 8725 • PGC 48917 • CGCG 218-047 • MCG + 07-28-67 • IRAS 13455 + 3833 • KUG 1345 + 385A • GC 3658 • H III 681 • h 1672 • | |
NGC 5303 , also listed as NGC 5303A in the catalog, is a 12.4 mag bright spiral galaxy of the Hubble type Sc / pec in the constellation Hounds and about 67 million light years from the Milky Way.
Together with the non-NGC object PGC 48920 (also called NGC 5303B ) it forms a gravitationally bound double galaxy and was discovered on May 16, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who marked it with “cF, vS , lE “described.