NGC 4494
| Galaxy NGC 4494 |
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|---|---|
![NGC 4494 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC4494_-_SDSS_DR14.jpg)
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| NGC 4494 SDSS image | |
| AladinLite | |
| Constellation | Berenike's hair |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 31 m 24.104 s |
| declination | + 25 ° 46 ′ 30.91 ″ |
| Appearance | |
| Morphological type | E1-2 / LINER |
| Brightness (visual) | 9.7 likes |
| Brightness (B-band) | 10.7 mag |
| Angular expansion | 4.8 ′ × 3.5 ′ |
| Position angle | 171 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Affiliation |
NGC 4565 group LGG 294 |
| Redshift | 0.004476 ± 0.000017 |
| Radial velocity | 1342 ± 5 km / s |
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Stroke distance v rad / H 0 |
(60 ± 4) · 10 6 ly (18.3 ± 1.3) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 6, 1785 |
| Catalog names | |
| NGC 4494 • UGC 7662 • PGC 41441 • CGCG 129-005 • MCG + 04-30-002 • IRAS F12288 + 2603 • 2MASX J12312403 + 2546299 • GC 3043 • H I 83 • h 1307 • LDCE 867 NED118 • NSA 161931 | |
NGC 4494 is an elliptical galaxy of the Hubble type E1 with an active galaxy core in the constellation Haar der Berenike. The galaxy is estimated to be 60 million light years from the Milky Way and about 85,000 light years across. Together with NGC 4565 and NGC 4562 , it forms the small galaxy group LGG 294.
In the same area of the sky there are u. a. the galaxies IC 3439 , IC 3449 , IC 3455 , IC 3469 .
The object was discovered by Wilhelm Herschel on April 6, 1785 .
Web links
Commons : NGC 4494 - collection of images, videos, and audio files
