NGC 4738
| Galaxy NGC 4738 |
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|---|---|
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| SDSS | |
| AladinLite | |
| Constellation | Berenike's hair |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 51 m 08.9 s |
| declination | + 28 ° 47 ′ 17 ″ |
| Appearance | |
| Morphological type | Sc |
| Brightness (visual) | 14.0 mag |
| Brightness (B-band) | 14.7 mag |
| Angular expansion | 2.1 ′ × 0.3 ′ |
| Position angle | 34 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.015858 +/- 0.000007 |
| Radial velocity | 4754 +/- 2 km / s |
|
Stroke distance v rad / H 0 |
(213 ± 15) · 10 6 ly (65.3 ± 4.6) Mpc |
| history | |
| discovery | Bindon Stoney |
| Discovery date | March 1, 1851 |
| Catalog names | |
| NGC 4738 • UGC 7999 • PGC 43517 • CGCG 159-092 • MCG + 05-30-103 • IRAS F12487 + 2903 • 2MASX J12510889 + 2847171 • GC 3247 • LEDA 43517 | |
NGC 4738 is a 14.0 mag bright spiral galaxy of the Hubble type Sc in the constellation Haar der Berenike in the northern sky . It is estimated to be 213 million light years away from the Milky Way and has a diameter of around 130,000 ly.
In the same area of the sky are the galaxies NGC 4735 and NGC 4793 , among others .
The object was discovered on March 1, 1851 by the Irish engineer Bindon Blood Stoney , who helped William Parsons as an assistant in the construction of telescopes .
Web links
- NGC 4738. SIMBAD, accessed February 4, 2015 .
- NGC 4738. DSO Browser, accessed February 4, 2015 .
- Auke Slotegraaf: NGC 4738. Deep Sky Observer's Companion, accessed February 4, 2015 .