Messier 65
| Galaxy Messier 65 |
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|---|---|
|
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| The galaxy Messier 65 - recorded with the help of the 81 cm mirror telescope of the Mount Lemmon Observatory | |
| AladinLite | |
| Constellation | lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 18 m 55.9 s |
| declination | + 13 ° 05 ′ 33 ″ |
| Appearance | |
| Morphological type | SAB (rs) a; LINER |
| Brightness (visual) | 9.2 likes |
| Brightness (B-band) | 10.1 mag |
| Angular expansion | 9.8 ′ × 2.9 ′ |
| Position angle | 174 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Affiliation | M66 group , LGG 231 |
| Redshift | +0.002692 ± 0.000010 |
| Radial velocity | +807 ± 3 km / s |
|
Stroke distance v rad / H 0 |
(32 ± 2) x 10 6 ly (9.9 ± 0.7) Mpc |
| history | |
| discovery | Charles Messier |
| Discovery date | March 1, 1780 |
| Catalog names | |
| M 65 • NGC 3623 • UGC 6328 • PGC 34612 • CGCG 67-54 • MCG + 2-29-18 • IRAS 11163 + 1322 • 2MASX J11185595 + 1305319 • Arp 317 • VV 308 • GC 2373 • h 854 • | |
Messier 65 (also known as NGC 3623 ) is a 9.2 mag bright spiral galaxy of the Hubble type Sb with an area of 9.8 '× 2.9' in the constellation Leo . Together with Messier 66 and NGC 3628 , this galaxy forms the Leo triplet, the core of the M66 galaxy group , which is about 32 million light years (9.9 Mpc) away. Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy triplet belongs to the class of galaxy groups .
Messier 65 was discovered on March 1, 1780 by the French astronomer Charles Messier .
The galaxy can already be seen in a powerful pair of binoculars .
The Leo triplet .
The galaxies Messier 65 top right, Messier 66 bottom right and NGC 3628 left. The brightest star in the image, located in the upper center, is HD 98388 (7.14 mag).
Detail of NGC 3623 from the Hubble Space Telescope
Web links
- M65 for SEDS measurement objects
- Well-known spiral galaxies, with 15 photos
- M65 in the "Two Micron All Sky Survey"
- ESO: The VST takes a look at the Leo triplet - and beyond (+ photos, map & animation) July 27, 2011
- Spektrum.de : Amateur recordings [1]
- ARP ATLAS OF PECULIAR GALAXIES
- Seligman Arp
literature
- Jeff Kanipe and Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide " , Richmond 2006, ISBN 978-0-943396-76-7
Individual evidence
