NGC 3408
| Galaxy  NGC 3408  | 
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|---|---|
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| SDSS image from NGC 3408 | |
| AladinLite | |
| Constellation | Big Bear | 
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Position  equinox : J2000.0 , epoch : J2000.0  | 
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| Right ascension | 10 h 52 m 11.677 s | 
| declination | + 58 ° 26 ′ 17.26 ″ | 
| Appearance | |
| Morphological type | Sc: | 
| Brightness (visual) | 13.5 likes | 
| Brightness (B-band) | 14.2 mag | 
| Angular expansion | 0.8 ′ × 0.7 ′ | 
| Position angle | 127 ° | 
| Surface brightness | 12.7 mag / arcmin² | 
| Physical data | |
| Redshift | 0.031713 ± 0.000095 | 
| Radial velocity | (9507 ± 28) km / s | 
| 
Stroke distance  v rad / H 0  | 
(428 ± 30)  ·  10 6  Lj (131.3 ± 9.2) Mpc  | 
| history | |
| discovery | William Herschel | 
| Discovery date | April 8, 1793 | 
| Catalog names | |
| NGC 3408 • UGC 5977 • PGC 32616 • CGCG 291-006 • MCG + 10-16-016 • IRAS 10490 + 5842 • 2MASX J10521167 + 5826168 • GC 2224 • H III 913 • h 770 • GALEX ASC J105211.71 + 582615.5 • NVSS J105211 + 582618 | |
NGC 3408 is a spiral radio galaxy of the Hubble-type Sc in the constellation Great Bear in the northern sky . It is an estimated 428 million light years from the Milky Way and about 100,000 light years in diameter.
The object was discovered by Wilhelm Herschel on April 8, 1793 .