NGC 665
| Galaxy NGC 665 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | fishes |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 44 m 56.0 s |
| declination | + 10 ° 25 ′ 23 ″ |
| Appearance | |
| Morphological type | (R) S0 ^ 0 ^? |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 2.4 ′ × 1.6 ′ |
| Position angle | 125 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 31 |
| Redshift | 0.018079 +/- 0.000067 |
| Radial velocity | 5420 +/- 20 km / s |
|
Stroke distance v rad / H 0 |
(246 ± 17) · 10 6 ly (75.3 ± 5.3) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | November 22, 1786 |
| Catalog names | |
| NGC 665 • UGC 1223 • PGC 6415 • MCG + 02-05-019 • IRAS F01422 + 1010 • 2MASX J01445609 + 1025230 • GC 394 • H II 588 • GALEX ASC J014456.15 + 102522.6 • LDCE 107 NED002 | |
NGC 665 is a lenticular galaxy of the Hubble type S0 in the constellation Pisces on the ecliptic . It is estimated to be 246 million light-years away from the Milky Way and has a diameter of about 175,000 ly
. a. the galaxies IC 154 , IC 156 , IC 161 , IC 162 .
The object was discovered by William Herschel on November 22, 1786 .