NGC 4291
| Galaxy NGC 4291 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Dragon |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 20 m 18.200 s |
| declination | + 75 ° 22 ′ 15.00 ″ |
| Appearance | |
| Morphological type | E3 / AGN |
| Brightness (visual) | 11.5 likes |
| Brightness (B-band) | 12.4 mag |
| Angular expansion | 2.0 '× 1.7' |
| Position angle | 124 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 4291 group NGC 4386 group NGC 4589 group LGG |
| Redshift | 0.005861 ± 0.000083 |
| Radial velocity | (1757 ± 25) km / s |
|
Stroke distance v rad / H 0 |
(85 ± 6) x 10 6 ly (26.0 ± 1.9) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | December 10, 1797 |
| Catalog names | |
| NGC 4291 • UGC 7397 • PGC 39791 • CGCG 352-028 • MCG + 13-09-024 • 2MASX J12201769 + 7522154 • GC 2868 • H I 275 • h 1192 • LDCE 902 NED004 | |
NGC 4291 is an elliptical galaxy with an active nucleus of the Hubble type E2 in the constellation Dragon in the northern sky . It is estimated to be 85 million light years from the Milky Way and about 50,000 light years in diameter. Together with NGC 4319 , it forms an (optical?) Pair of galaxies. It is a member of the eleven galaxies NGC 4589 group ( LGG 284 ).
The galaxies NGC 4331 and NGC 4363 are located in the same area of the sky .
The object was discovered by Wilhelm Herschel on December 10, 1797 .