NGC 6909
| Galaxy NGC 6909 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | telescope |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 20 h 27 m 38.9 s |
| declination | -47 ° 01 ′ 37 ″ |
| Appearance | |
| Morphological type | SA0 ^ - |
| Brightness (visual) | 11.7 mag |
| Brightness (B-band) | 12.6 mag |
| Angular expansion | 2.2 '× 1.1' |
| Position angle | 68 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Affiliation | isolated |
| Redshift | 0.009270 ± 0.000050 |
| Radial velocity | 2779 ± 15 km / s |
|
Stroke distance v rad / H 0 |
(123 ± 9) · 10 6 ly (37.8 ± 2.7) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | July 1, 1834 |
| Catalog names | |
| NGC 6909 • PGC 64725 • ESO 285-012 • 2MASX J20273886-4701373 • SGC 202407-4711.5 • 2MASS J20273890-4701371 • WISE A J202738.92-470137.0 • 2MIG 2786 | |
NGC 6909 is an elliptical galaxy of Hubble type E5 in the constellation Telescopium the southern sky . It is estimated to be 123 million light years from the Milky Way and about 80,000 light years in diameter.
In the same area of the sky is u. a. the galaxy NGC 6918 .
The object was discovered on July 1, 1834 by John Herschel .