NGC 4617
| Galaxy NGC 4617 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 41 m 05.9 s |
| declination | + 50 ° 23 ′ 36 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 13.2 mag |
| Brightness (B-band) | 14 likes |
| Angular expansion | 2.9 '× 0.5' |
| Position angle | 179 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.015527 ± 0.000027 |
| Radial velocity | 4655 ± 8 km / s |
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Stroke distance v rad / H 0 |
(211 ± 15) · 10 6 ly (64.8 ± 4.5) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | February 9, 1788 |
| Catalog names | |
| NGC 4617 • UGC 7847 • PGC 42530 • CGCG 270-013 • MCG + 09-21-028 • IRAS 12387 + 5039 • 2MASX J12410588 + 5023364 • GC 3150 • H II 744 • NVSS J124105 + 502331 • KIG 545 • 2MIG 1757 | |
NGC 4617 is a spiral galaxy of Hubble type Sb in the constellation Canes Venatici on the northern sky . It is an estimated 211 million light years from the Milky Way and about 180,000 light years in diameter .
The supernovae SN 2005ab (Type II) and SN 2007ss ( Type Ia ) were observed here.
The object was discovered by William Herschel on February 9, 1788 .