NGC 3665
| Galaxy data from NGC 3665 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Big Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 24 m 43.7 s |
| declination | + 38 ° 45 ′ 46.0 ″ |
| Appearance | |
| Morphological type | SA (s) 0 ^ 0 ^ |
| Brightness (visual) | 10.7 mag |
| Brightness (B-band) | 11.7 mag |
| Angular expansion | 4.3 ′ × 3.3 ′ |
| Position angle | 18 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 3665 group LGG 236 |
| Redshift | 0.006901 ± 0.000017 |
| Radial velocity | 2069 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(93 ± 7) · 10 6 ly (28.5 ± 2.0) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 23, 1789 |
| Catalog names | |
| NGC 3665 • UGC 6426 • PGC 35064 • CGCG 214-004 • MCG + 07-24-003 • IRAS 11220 + 3902 • 2MASX J11244363 + 3845460 • GC 2404 • H I 219 • h 881 • NVSS J112443 + 384546 • LDCE 805 NED004 | |
NGC 3665 is a lenticular radio galaxy of the Hubble type S0 in the constellation Great Bear in the northern sky . It is estimated to be 93 million light years from the Milky Way and about 115,000 light years across.
Together with NGC 3648 , NGC 3652 , NGC 3658 , PGC 35039 , PGC 35080 and PGC 35124 , it forms the NGC 3665 galaxy group .
The Type Ia supernova SN 2002hl was observed here.
The object was discovered by William Herschel on March 23, 1789 .
NGC 3665 group ( LGG 236 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 3665 | PGC 35064 | 93 |
| NGC 3648 | PGC 34908 | 89 |
| NGC 3652 | PGC 34917 | 89 |
| NGC 3658 | PGC 35003 | 92 |
| PGC 35039 | UGC 6416 | 87 |
| PGC 35080 | UGC 6428 | 90 |
| PGC 35124 | UGC 6433 | 95 |
Web links
Commons : NGC 3665 - collection of images, videos, and audio files
