NGC 1397
| Galaxy NGC 1397 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Eridanus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 03 h 39 m 47.1 s |
| declination | -04 ° 40 ′ 12 ″ |
| Appearance | |
| Morphological type | (R) SB (r) 0 / a |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.7 ′ × 1.2 ′ |
| Position angle | 105 ° |
| Surface brightness | 14.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.018369 +/- 0.000023 |
| Radial velocity | 5507 +/- 7 km / s |
|
Stroke distance v rad / H 0 |
(244 ± 17) x 10 6 ly (74.8 ± 5.2) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | September 30, 1789 |
| Catalog names | |
| NGC 1397 • PGC 13485 • MCG -01-10-17 • 2MASX J03394713-0440121 • H III 569 • LDCE 0260 NED002 | |
NGC 1397 is a lenticular galaxy of the Hubble type SB0-a in the constellation Eridanus in the southern sky . It is an estimated 244 million light years from the Milky Way .
The object was discovered by Wilhelm Herschel on September 30, 1789 and later listed in the New General Catalog by Johann Dreyer .