PGC 7121
| Galaxy LEDA / PGC 7121 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 54 m 57.29 s |
| declination | -17 ° 04 ′ 47.5 ″ |
| Appearance | |
| Morphological type | SAB (rs) a? |
| Brightness (visual) | 15.9 mag |
| Brightness (B-band) | 16.8 likes |
| Angular expansion | 0.7 ′ × 0.4 ′ |
| Surface brightness | 14.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.049691 ± 0.000150 |
| Radial velocity | 14,897 ± 45 km / s |
|
Stroke distance v rad / H 0 |
(665 ± 47) · 10 6 ly (203.9 ± 14.3) Mpc |
| diameter | 100,000 ly |
| history | |
| Catalog names | |
| PGC 7121 • 2MASX J01545728-1704477 • SGC 0152.8-1716 • 2MASS J01545730-1704472 • GALEX ASC J015457.27-170448.3 • NSA 130689 | |
LEDA / PGC 7121 is a barred spiral galaxy of the Hubble type SBa in the constellation Whale south of the ecliptic . It is estimated to be 665 million light years from the Milky Way and about 100,000 light years in diameter .
This galaxy is often confused with NGC 734 .