NGC 4988
| Galaxy NGC 4988 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | centaur |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 09 m 54.4 s |
| declination | -43 ° 06 ′ 21 ″ |
| Appearance | |
| Morphological type | S0-a |
| Brightness (visual) | 13.0 likes |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 1.7 ′ × 0.5 ′ |
| Position angle | 26 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Redshift | 0.006995 +/- 0.000140 |
| Radial velocity | 2097 +/- 42 km / s |
|
Stroke distance v rad / H 0 |
(86 ± 6) · 10 6 ly (26.4 ± 1.9) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | June 3, 1834 |
| Catalog names | |
| NGC 4988 • PGC 45671 • ESO 269-055 • MCG -07-27-037 • IRAS 13070-4250 • 2MASX J13095440-4306204 • SGC 130702-4250.4 • GC 3425 • h 3470 • GALEX ASC J130954.38-430620.5 | |
NGC 4988 is a 13.0 mag bright lens-shaped galaxy of the Hubble type "S0-a" in the constellation Centaur in the southern sky . It is estimated to be 86 million light years away from the Milky Way and has a diameter of around 45,000 ly.
In the same area of the sky is the galaxy NGC 5011 .
The object was discovered on June 3, 1834 by John Herschel with an 18-inch reflector telescope, who described it as "vF, S, E, possibly a small group of stars, but I think it is nebulous".