NGC 3612
| Galaxy NGC 3612 |
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|---|---|
![SDSS image from NGC 3612 [1]](https://de.wikipedia.org/wiki/Datei:NGC3612_-_SDSS_DR14.jpg)
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| SDSS image from NGC 3612 | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 11 h 18 m 14.720 s |
| declination | + 26 ° 37 ′ 14.00 ″ |
| Appearance | |
| Morphological type | Sdm: |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 1.0 '× 0.8' |
| Position angle | 160 ° |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Affiliation | Abell 1185 |
| Redshift | 0.027883 ± 0.000020 |
| Radial velocity | 8359 ± 6 km / s |
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Stroke distance v rad / H 0 |
(372 ± 26) x 10 6 ly (114.0 ± 8.0) Mpc |
| history | |
| discovery | Wilhelm of Struve |
| Discovery date | March 16, 1869 |
| Catalog names | |
| NGC 3612 • UGC 6321 • PGC 34546 • CGCG 156-056 • MCG + 05-27-051 • 2MASX J11181468 + 2637143 • 2MASS J11181469 + 2637140 • WISEA J111814.71 + 263714.4 • HOLM 241B | |
NGC 3612 is a spiral galaxy of Hubble type Scd in the constellation Leo on the ecliptic . It is estimated to be 372 million light years from the Milky Way and about 110,000 light years in diameter. Together with NGC 3609 and PGC 34516 , it forms the galaxy trio Holm 241 .
In the same area of the sky is u. a. the galaxy NGC 3629 .
The object was discovered on March 16, 1869 by Otto Wilhelm von Struve . However, Struve's observations suggest that the galaxy to the east (PGC 34546) is not NGC 3612, as this galaxy does not have a star in the northeast as described. Thus, given the nearly identical description of NGC 3609 and 3612, it is essentially certain that Struve's observations of "two nebulae" were in fact two observations of the same object and the entries are duplicates.
