NGC 7440
| Galaxy NGC 7440 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Andromeda |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 22 h 58 m 32.5 s |
| declination | + 35 ° 48 ′ 09 ″ |
| Appearance | |
| Morphological type | SB (r) a |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.4 mag |
| Angular expansion | 1.4 ′ × 1.1 ′ |
| Position angle | 84 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.018876 +/- 0.000017 |
| Radial velocity | 5659 +/- 5 km / s |
|
Stroke distance v rad / H 0 |
(262 ± 18) · 10 6 ly (80.4 ± 5.6) Mpc |
| history | |
| discovery | Edouard Stephan |
| Discovery date | October 9, 1876 |
| Catalog names | |
| NGC 7440 • UGC 12276 • PGC 70152 • CGCG 515-015 • MCG + 06-50-014 • 2MASX J22583255 + 3548086 • Mrk 924 • LDCE 1542 NED005 | |
NGC 7440 is a barred spiral galaxy of the Hubble type SBa in the constellation Andromeda in the northern sky . It is estimated to be 262 million light years away from the Milky Way and has a diameter of around 105,000 ly.
In the same area of the sky is the galaxy NGC 7426 .
The object was discovered on October 9, 1876 by the astronomer Édouard Stephan .