NGC 4938
| Galaxy NGC 4938 |
|
|---|---|
|
|
| SDSS | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 02 m 57.6 s |
| declination | + 51 ° 19 ′ 07 ″ |
| Appearance | |
| Morphological type | SBb (r) |
| Brightness (visual) | 14.4 mag |
| Brightness (B-band) | 15.2 mag |
| Angular expansion | 0.8 ′ × 0.7 ′ |
| Position angle | 39 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.027622 ± 0.000167 |
| Radial velocity | 8281 ± 50 km / s |
|
Stroke distance v rad / H 0 |
(374 ± 26) · 10 6 ly (114.6 ± 8.1) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | February 17, 1831 |
| Catalog names | |
| NGC 4938 • PGC 45044 • CGCG 270-042 • MCG + 09-21-091 • 2MASX J13025758 + 5119070 • GC 3380 • h 1521 • | |
NGC 4938 is a 14.4 mag bright spiral galaxy of the Hubble type S in the constellation Hounds in the northern sky . It is estimated to be 374 million light-years away from the Milky Way and has a diameter of about 90,000 ly. In the same area of the sky is u. a. the galaxy NGC 4932 .
The object was discovered by John Herschel on February 17, 1831 .
Web links
- NGC 4938. SIMBAD , accessed February 22, 2015 .
- NGC 4938. DSO Browser, accessed February 22, 2015 .
- Auke Slotegraaf: NGC 4938. Deep Sky Observer's Companion, accessed on February 22, 2015 (English).