Maffei 2
| Maffei 2 | |
|---|---|
 Image by Two Micron All Sky Survey (2MASS) | |
| Observation data (J2000epoch) | |
| Constellation | Cassiopeia |
| Right ascension | 02h41m55.1s[1] |
| Declination | +59° 36′ 15″[1] |
| Redshift | -17 ± 5km/s[1] |
| Distance | 9.8Mly[2] |
| Apparent magnitude(V) | 16.0[1] |
| Characteristics | |
| Type | SAB(rs)bc[1] |
| Apparent size(V) | 15.2′× 7.0′[1] |
| Other designations | |
| UGCA 39,[1]PGC10217,[1]Sharpless197 | |
Maffei 2is anintermediate spiral galaxyabout10 millionlight-yearsaway[2]in theconstellationCassiopeia.Maffei 2 andMaffei 1were both discovered byPaolo Maffeiin 1968 from their infrared emission. Maffei 2 lies in theZone of Avoidanceand is about 99.5% obscured by theMilky Way's foreground dust clouds,[3]and as a result is barely detectable at optical wavelengths. It had been suggested soon after its discovery that Maffei 2 may be a member of theLocal Group,but it is now thought to be a member of another nearby group, theIC 342/Maffei Group,thegalaxy groupthat is the closest to the Local Group.
See also
[edit]References
[edit]- ^abcdefgh"NED results for object Maffei 2".NASA/IPAC Extragalactic Database.Retrieved2006-11-25.
- ^abKarachentsev, I. D. (2005). "The Local Group and Other Neighboring Galaxy Groups".Astronomical Journal.129(1): 178–188.arXiv:astro-ph/0410065.Bibcode:2005AJ....129..178K.doi:10.1086/426368.S2CID119385141.
- ^"The Hidden Galaxy".NASA.Retrieved2011-05-03.
External links
[edit]
Wikimedia Commons has media related toMaffei 2.
- "Maffei 2".Spider.SEDS.
- "Maffei 2".UA Astronomy.University of Alabama.
- Maffei 2 onWikiSky:DSS2,SDSS,GALEX,IRAS,Hydrogen α,X-Ray,Astrophoto,Sky Map,Articles and images
- Nemiroff, R.; Bonnell, J., eds. (9 March 2010)."Galaxies Beyond the Heart: Maffei 1 and 2".Astronomy Picture of the Day.NASA.
- "UGCA 39".SIMBAD.Centre de données astronomiques de Strasbourg.Retrieved25 March2018.
