NGC 2748
| Galaxy NGC 2748 |
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|---|---|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | giraffe |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 09 h 13 m 43.0 s |
| declination | + 76 ° 28 ′ 31 ″ |
| Appearance | |
| Morphological type | SAbc / HII |
| Brightness (visual) | 11.5 likes |
| Brightness (B-band) | 12.3 mag |
| Angular expansion | 3.1 ′ × 1.1 ′ |
| Position angle | 38 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 2655 group LGG 165 |
| Redshift | 0.004923 ± 0.000007 |
| Radial velocity | 1476 ± 2 km / s |
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Stroke distance v rad / H 0 |
(72 ± 5) x 10 6 ly (22.0 ± 1.5) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | September 2, 1828 |
| Catalog names | |
| NGC 2748 • UGC 4825 • PGC 26018 • CGCG 350-014 • MCG + 13-07-019 • IRAS 09080 + 7640 • 2MASX J09134303 + 7628312 • GC 1753 • h 548 • PRC C-28 • LDCE 602 NED004 | |
NGC 2748 is a spiral galaxy with extensive star formation regions of the Hubble type Sbc in the constellation Giraffe in the northern sky . It is estimated to be 72 million light years from the Milky Way and about 65,000 light years in diameter.
Together with NGC 2591 , NGC 2655 , NGC 2715 , it forms the NGC 2655 group .
The supernovae SN 1985A ( Type-Ia ), SN 2013ff (Type-Ic) and SN 2017gkk (Type-IIb) were observed here.
The object was discovered by John Herschel on September 2, 1828 .