NGC 3946
| Galaxy NGC 3946 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 53 m 20.6 s |
| declination | + 21 ° 01 ′ 17 ″ |
| Appearance | |
| Morphological type | S0 / a / LINER |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.5 mag |
| Angular expansion | 0.5 ′ × 0.4 ′ |
| Position angle | 90 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Redshift | 0.022012 ± 0.000097 |
| Radial velocity | 6599 ± 29 km / s |
|
Stroke distance v rad / H 0 |
(293 ± 21) · 10 6 ly (89.8 ± 6.3) Mpc |
| history | |
| discovery | Guillaume Bigourdan |
| Discovery date | April 23, 1886 |
| Catalog names | |
| NGC 3946 • PGC 37268 • CGCG 127-096 • MCG + 04-28-089 • 2MASX J11532062 + 2101175 • GALEX ASC J115320.67 + 210118.2 • USGC U427 NED03 | |
NGC 3946 is a lenticular galaxy with an active nucleus of the Hubble type S0 / a in the constellation Leo on the ecliptic . It is an estimated 293 million light years away from the Milky Way and has a diameter of about 45,000 ly.
In the same area of the sky are the galaxies NGC 3929 , NGC 3940 , NGC 3947 , NGC 3954 .
The object was discovered by Guillaume Bigourdan on April 23, 1886 .
Web links
Commons : NGC 3946 - collection of images, videos, and audio files
