Maffei 2
| Galaxy Maffei 2 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Cassiopeia |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 02 h 41 m 55.1 s |
| declination | + 59 ° 36 ′ 15 ″ |
| Appearance | |
| Morphological type | SAB (rs) bc |
| Brightness (visual) | 16.0 mag |
| Angular expansion | 15.2 ′ × 7.0 ′ |
| Physical data | |
| Affiliation | Maffei group |
| Redshift | −0.000057 ± 0.000017 |
| Radial velocity | (−17 ± 5) km / s |
| distance | 9,800,000 Lj / 3000000 pc |
| history | |
| discovery | Paolo Maffei |
| Discovery date | 1967 |
| Catalog names | |
| UGCA 39 • PGC 10217 • IRAS 02381 + 5923 • 2MASX J02415509 + 5936147 • Sharpless 197 | |
Maffei 2 is a medium-sized spiral galaxy in the constellation of Cassiopeia about 10 million light-years away from our solar system .
Maffei 2 and Maffei 1 were both discovered in 1967 by the Italian astronomer Paolo Maffei using their infrared emissions. Maffei 2 lies in the middle of the Galactic Plains of the Milky Way, the so-called Zone of Avoidance . 99.5% of the light of the galaxy is obscured or absorbed by dust clouds and stars of the Milky Way, which is why it is very difficult to observe optically.
Shortly after Maffei 2 was discovered , she was accepted as part of the Local Group . Recent measurements show Maffei 2 is part of its own, which our group of galaxies of the Local Group nearest group of galaxies to the Maffei group .
gallery
The heart and soul mists . Below this, the slightly blue spiral galaxy in the middle at the bottom of the picture is Maffei 2.
Maffei 2 is the spiral galaxy in the upper left corner, Maffei 1 is the blue elliptical galaxy in the lower right corner.
The overall picture with Maffei 2 and Maffei 1.
See also
Web links
- SIMBAD : UGCA 39 - Galaxy
- SEDS : Spiral Galaxy Maffei 2
- Sky-Map.org
- Maffei2
- Galaxies Beyond the Heart: Maffei 1 and 2 = Astronomy Picture of the Day 2010 March 9
Individual evidence
- ↑ a b c d e NASA / IPAC Extragalactic Database. In: Results for Maffei 2. Retrieved October 24, 2011 .
- ↑ a b I.D. Karachentsev: The Local Group and Other Neighboring Galaxy Groups . In: Astronomical Journal . 129, No. 1, 2005, pp. 178-188. arxiv : astro-ph / 0410065 . bibcode : 2005AJ .... 129..178K . doi : 10.1086 / 426368 .
- ^ The Hidden Galaxy. (No longer available online.) NASA, archived from the original on April 26, 2011 ; Retrieved May 3, 2011 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
