NGC 6861
| Galaxy NGC 6861 / IC 4949 |
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|---|---|
![NGC 6861 [1] (Hubble Space Telescope)](https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/Potw1502a.tif/lossy-page1-300px-Potw1502a.tif.jpg)
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| NGC 6861 ( Hubble Space Telescope ) | |
| AladinLite | |
| Constellation | telescope |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 20 h 07 m 19.5 s |
| declination | -48 ° 22 ′ 13 ″ |
| Appearance | |
| Morphological type | SA (s) 0-: |
| Brightness (visual) | 11.1 mag |
| Brightness (B-band) | 12.1 mag |
| Angular expansion | 3, ′ 0 × 2, ′ 0 |
| Position angle | 140 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | Telescopium group SSRS group 28 NGC 6868 group LGG 430 |
| Redshift | 0.009437 ± 0.000057 |
| Radial velocity | 2829 ± 17 km / s |
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Stroke distance v rad / H 0 |
(125 ± 9) · 10 6 ly (38.4 ± 2.7) Mpc |
| history | |
| discovery | James Dunlop |
| Discovery date | July 30, 1826 |
| Catalog names | |
| NGC 6861 • IC 4949 • PGC 64136 • ESO 233-32 • IRAS 20037-4830 • 2MASX J20071948-4822129 • SGC 200341-4830.9 • GALEX ASC J200719.45-482212.6 • LDCE 1384 NED002 | |
NGC 6861 = IC 4949 is an elliptical galaxy of the Hubble type E / S0 in the constellation Telescope in the southern sky . It is around 125 million light years away from the Milky Way and has a diameter of around 110,000 light years .
In the same area of the sky are u. a. the galaxies NGC 6851 , NGC 6868 , NGC 6870 , IC 4943 .
The object was discovered on July 30, 1826 by James Dunlop using a 9-inch telescope . "Rediscovered" on July 8, 1897 by Lewis Swift (registered as an IC object as IC 4949 ).
Web links
Commons : NGC 6861 - collection of images, videos, and audio files
