NGC 4717
| Galaxy NGC 4717 |
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|---|---|
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| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 50 m 34.39 s |
| declination | -09 ° 27 ′ 46.9 ″ |
| Appearance | |
| Morphological type | SB (rs) a |
| Brightness (visual) | 14.2 mag |
| Brightness (B-band) | 15.1 mag |
| Angular expansion | 1.4 ′ × 0.5 ′ |
| Position angle | 12 ° |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 4759 group HCG 62 NGC 4760 group LGG 312 |
| Redshift | 0.015591 ± 0.000060 |
| Radial velocity | 4674 ± 18 km / s |
|
Stroke distance v rad / H 0 |
(204 ± 14) · 10 6 ly (62.5 ± 4.4) Mpc |
| diameter | 85,000 ly |
| history | |
| discovery | Wilhelm Temple |
| Discovery date | April 12, 1882 |
| Catalog names | |
| NGC 4717 • PGC 43467 • MCG -01-33-023 • 2MASX J12503439-0927468 • GALEX ASC J125034.45-092746.7 • LDCE 0921 NED014 • WISEA J125034.37-092746.6 • HOLM 466A • KTS 46C | |
NGC 4717 is a barred spiral galaxy of the Hubble type SBa in the constellation Virgo on the ecliptic . It is around 204 million light years away from the Milky Way and has a diameter of around 85,000 light years . The galaxy has two strikingly divergent spiral arms , so it is believed that it forms an interacting galaxy trio with its neighbors NGC 4716 and PGC 43465 . Together with three other galaxies, it forms the NGC 4760 group ( LGG 312 ).
The galaxies NGC 4703 , NGC 4764 , NGC 4759 , IC 3826 are in the same area of the sky .
The object was discovered by Wilhelm Tempel on April 12, 1882 .