NGC 3928
| Galaxy NGC 3928 |
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|---|---|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 11 h 51 m 47.6 s |
| declination | + 48 ° 40 ′ 59 ″ |
| Appearance | |
| Morphological type | SA (s) b? / HII |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 1.5 ′ × 1.5 ′ |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 258 |
| Redshift | 0.003296 ± 0.000013 |
| Radial velocity | 988 ± 4 km / s |
|
Stroke distance v rad / H 0 |
(47 ± 3) x 10 6 ly (14.3 ± 1.0) Mpc |
| diameter | 20,000 ly |
| history | |
| discovery | William Herschel |
| Discovery date | February 9, 1788 |
| Catalog names | |
| NGC 3928 • UGC 6834 • PGC 37136 • CGCG 243-019 • MCG + 08-22-19 • IRAS 11491 + 4857 • 2MASX J11514768 + 4840593 • Mrk 190 • GC 2590 • H II 740 • h 999 • LDCE 867 NED043 • GALEX ASC J115147.51 + 484058.6 | |
NGC 3928 is a dwarf galaxy with extensive star formation regions of the Hubble type E? in the constellation Great Bear in the north star sky . It is estimated to be 47 million light years away from the Milky Way and has a diameter of around 20,000 ly.
In the same area of the sky are the galaxies NGC 3893 , NGC 3896 , NGC 3906 , NGC 3950 .
The object was discovered on February 9, 1788 by the astronomer William Herschel with his 18.7-inch reflector telescope.
Web links
Commons : NGC 3928 - collection of images, videos, and audio files
