NGC 7398
| Galaxy NGC 7398 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | fishes |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 22 h 52 m 49.3 s |
| declination | + 01 ° 12 ′ 04 ″ |
| Appearance | |
| Morphological type | SA (r) a: |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.2 '× 0.8' |
| Position angle | 75 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.015718 ± 0.000162 |
| Radial velocity | 4712 ± 49 km / s |
|
Stroke distance v rad / H 0 |
(217 ± 15) · 10 6 ly (66.5 ± 4.7) Mpc |
| history | |
| discovery | RJ Mitchell |
| Discovery date | October 2, 1856 |
| Catalog names | |
| NGC 7398 • UGC 12225 • PGC 69905 • CGCG 379-012 • MCG + 00-58-009 • 2MASX J22524925 + 0112039 • LDCE 1541 NED003 | |
NGC 7398 is a spiral galaxy of Hubble type Sa in the constellation Pisces on the ecliptic . It is estimated to be 217 million light-years away from the Milky Way and has a diameter of about 75,000 light years . a. the galaxies NGC 7396 , NGC 7397 , NGC 7401 , NGC 7402 .
The object was discovered by RJ Mitchell on October 2, 1856 .