NGC 4248
| Galaxy NGC 4248 |
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|---|---|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 17 m 49.847 s |
| declination | + 47 ° 24 ′ 33.11 ″ |
| Appearance | |
| Morphological type | I0 / sp / HII |
| Brightness (visual) | 12.4 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 2.9 '× 1.2' |
| Position angle | 108 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | CVn II group NGC 4258 group LGG 290 |
| Redshift | 0.001614 ± 0.000037 |
| Radial velocity | 484 ± 11 km / s |
|
Stroke distance v rad / H 0 |
(24 ± 2) x 10 6 ly (7.45 ± 0.54) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | February 9, 1788 |
| Catalog names | |
| NGC 4248 • UGC 7335 • PGC 39461 • CGCG 243-064 • CGCG 244-001 • MCG + 08-22-099 • 2MASX J12174990 + 4724329 • GC 2834 • H II 742 • h 1169 • NSA 141075 • HOLM 363B • LDCE 867 NED097 | |
NGC 4248 is an irregular galaxy of Hubble type IBm with extensive star formation in the constellation of hounds on the northern sky . It is estimated to be 24 million light-years from the Milky Way and about 20,000 light-years across. Together with Messier 106 , it forms the galaxy pair Holm 363 and is considered a member of the NGC 4258 group ( LGG 290 ).
In the same area of the sky are u. a. the galaxies NGC 4217 , NGC 4226 , NGC 4231 , NGC 4232 .
The object was discovered by William Herschel on February 9, 1788 .
Web links
Commons : NGC 4248 - collection of images, videos, and audio files
