Astronomy:Maffei 2

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Short description: Galaxy in the constellation Cassiopeia
Maffei 2
Maf2atlas.jpg
Image by Two Micron All Sky Survey (2MASS)
Observation data (J2000 epoch)
ConstellationCassiopeia
Right ascension 02h 41m 55.1s[1]
Declination+59° 36′ 15″[1]
Redshift-17 ± 5 km/s[1]
Distance9.8 Mly[2]
Apparent magnitude (V)16.0[1]
Characteristics
TypeSAB(rs)bc[1]
Apparent size (V)15.2 × 7.0[1]
Other designations
UGCA 39,[1] PGC 10217,[1] Sharpless 197

Maffei 2 is an intermediate spiral galaxy about 10 million light-years away[2] in the constellation Cassiopeia. Maffei 2 and Maffei 1 were both discovered by Paolo Maffei in 1968 from their infrared emission. Maffei 2 lies in the Zone of Avoidance and is about 99.5% obscured by the Milky 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 the Local Group, but it is now thought to be a member of another nearby group, the IC 342/Maffei Group, the galaxy group that is the closest to the Local Group.

See also

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NED results for object Maffei 2". NASA/IPAC Extragalactic Database. http://nedwww.ipac.caltech.edu/. 
  2. 2.0 2.1 Karachentsev, I. D. (2005). "The Local Group and Other Neighboring Galaxy Groups". Astronomical Journal 129 (1): 178–188. doi:10.1086/426368. Bibcode2005AJ....129..178K. 
  3. "The Hidden Galaxy". NASA. http://www.nasa.gov/mission_pages/spitzer/multimedia/pia13789.html. 

External links


Coordinates: Sky map 02h 41m 55.1s, +59° 36′ 15″