NGC 4025
| Galaxy NGC 4025 |
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|---|---|
![NGC 4025 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC4025_-_SDSS_DR14.jpg)
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| NGC 4025 SDSS image | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 11 h 59 m 10.187 s |
| declination | + 37 ° 47 ′ 36.26 ″ |
| Appearance | |
| Morphological type | SB (s) cd |
| Brightness (visual) | 13.3 mag |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 2.50 ′ × 1.4 ′ |
| Position angle | 31 ° |
| Surface brightness | 14.5 mag / arcmin² |
| Physical data | |
| Affiliation | isolated |
| Redshift | 0.010711 ± 0.000010 |
| Radial velocity | 3211 ± 3 km / s |
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Stroke distance v rad / H 0 |
(144 ± 10) · 10 6 ly (44.3 ± 3.1) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 17, 1787 |
| Catalog names | |
| NGC 4025 • UGC 6982 • PGC 37738 • CGCG 186-080 • MCG + 06-26-064 • 2MASX J11591024 + 3747372 • GC 2659 • H III 617 • h 1046 • 2MASS J11591020 + 3747375 • NSA 90256 • SIG 1817 | |
NGC 4025 is a barred spiral galaxy of the Hubble type SBc in the constellation Great Bear in the northern sky . It is estimated to be 144 million light-years from the Milky Way and about 105,000 light-years across.
The object was discovered by Wilhelm Herschel on March 17, 1787 .