NGC 4838
| Galaxy NGC 4838 |
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|---|---|
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| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 57 m 56.1 s |
| declination | -13 ° 03 ′ 36 ″ |
| Appearance | |
| Morphological type | (R ') SB (r) b: |
| Brightness (visual) | 13.0 likes |
| Brightness (B-band) | 13.8 mag |
| Angular expansion | 1.6 ′ × 1.4 ′ |
| Position angle | 150 ° |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Redshift | 0.016736 +/- 0.000022 |
| Radial velocity | 5017 +/- 7 km / s |
|
Stroke distance v rad / H 0 |
(219 ± 15) x 10 6 ly (67.2 ± 4.7) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | May 9, 1831 |
| Catalog names | |
| NGC 4838 • PGC 44383 • MCG -02-33-074 • IRAS 12552-1247 • 2MASX J12575614-1303360 • GC 3329 • H 1490 • LDCE 921 NED063 | |
NGC 4838 is a 13.0 mag bright bar spiral galaxy of the Hubble type "SBc" in the constellation Virgo on the ecliptic . It is estimated to be 219 million light years away from the Milky Way and has a diameter of around 105,000 ly.
In the same area of the sky are the galaxies NGC 4825 , NGC 4836 , NGC 4847 , NGC 4855 , among others .
The object was discovered on May 9, 1831 by John Herschel with an 18-inch reflector telescope, who noted "... on the parallel with the nebula [NGC 4838], another faint, small one follows ...".