NGC 7442
| Galaxy NGC 7442 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 22 h 59 m 26.5 s |
| declination | + 15 ° 32 ′ 54 ″ |
| Appearance | |
| Morphological type | SAc: |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.2 mag |
| Angular expansion | 1.1 '× 1.1' |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.024243 +/- 0.000030 |
| Radial velocity | 7268 +/- 9 km / s |
|
Stroke distance v rad / H 0 |
(333 ± 23) x 10 6 ly (102.0 ± 7.1) Mpc |
| history | |
| discovery | Heinrich d'Arrest |
| Discovery date | November 24, 1861 |
| Catalog names | |
| NGC 7442 • UGC 12286 • PGC 70183 • CGCG 430-042 • MCG + 02-58-045 • IRAS 22569 + 1516 • 2MASX J22592655 + 1532543 • | |
NGC 7442 is a spiral galaxy of Hubble type Sc in the constellation Pegasus at the northern sky . It is estimated to be 333 million light years away from the Milky Way and has a diameter of about 105,000 ly.
In the same area of the sky there are u. a. the galaxies NGC 7448 , NGC 7461 , NGC 7463 , IC 1461 .
The object was discovered by Heinrich d'Arrest on November 24, 1861 .