NGC 3145
| Galaxy NGC 3145 |
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|---|---|
![NGC 3145 [1] Hubble Space Telescope](https://de.wikipedia.org/wiki/Datei:NGC_3145_hst_08597_27_606.png)
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| NGC 3145 Hubble Space Telescope | |
| AladinLite | |
| Constellation | Water snake |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 10 h 10 m 09.87 s |
| declination | -12 ° 26 ′ 01.6 ″ |
| Appearance | |
| Morphological type | SB (rs) bc |
| Brightness (visual) | 11.7 mag |
| Brightness (B-band) | 12.5 mag |
| Angular expansion | 3 ′ × 1.6 ′ |
| Position angle | 18 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.012182 + 0.000020 |
| Radial velocity | 3652 ± 6 km / s |
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Stroke distance v rad / H 0 |
(155 ± 11) · 10 6 ly (47.5 ± 3.3) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 19, 1786 |
| Catalog names | |
| NGC 3145 • PGC 29591 • MCG -02-26-036 • 2MASX J10100986-1226014 • GC 2023 • H III 518 • h 673 • HIPASS J1010-12 • 2MASS J10100987-1226016 | |
NGC 3145 is a bar-spiral galaxy of the Hubble-type SBbc in the constellation Water Snake south of the celestial equator . It is estimated to be 155 million light years from the Milky Way and about 140,000 light years in diameter. Presumably it forms a gravitationally bound galaxy pair together with NGC 3143 .
In the same area of the sky are u. a. the galaxies NGC 3133 , NGC 3138 , NGC 3139 .
The object was discovered on March 19, 1786 by the astronomer Wilhelm Herschel with a 48 cm telescope.
Web links
Commons : NGC 3145 - collection of images, videos, and audio files
