NGC 7684
| Galaxy NGC 7684 |
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|---|---|
![NGC 7684 [1]](https://de.wikipedia.org/wiki/Datei:NGC7684_-_SDSS_DR14.jpg)
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| NGC 7684 | |
| AladinLite | |
| Constellation | fishes |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 23 h 30 m 32.036 s |
| declination | + 00 ° 04 ′ 51.84 ″ |
| Appearance | |
| Morphological type | S0 + / LINER |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.7 mag |
| Angular expansion | 1.5 '× 0.4' |
| Position angle | 21 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.017114 ± 0.000082 |
| Radial velocity | 5131 ± 25 km / s |
|
Stroke distance v rad / H 0 |
(235 ± 16) x 10 6 ly (72.0 ± 5.0) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | October 5, 1863 |
| Catalog names | |
| NGC 7684 • UGC 12637 • PGC 71625 • CGCG 380-065 • MCG + 00-59-050 • 2MASX J23303202 + 0004520 • GALEX ASC J233032.01 + 000452.4 • WISEA J233032.03 + 000451.7 • NSA 005479 | |
NGC 7684 is a lenticular galaxy of the Hubble type S0 / a with an active galaxy core in the constellation Pisces on the ecliptic . It is estimated to be 235 million light years from the Milky Way and about 105,000 light years across.
The object was discovered by Albert Marth on October 5, 1863 .