Maffei 2

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Maffei 2
Maf2atlas.jpg
Observation data (J2000 epoch)
Constellation Cassiopeia
Right ascension 02h 41m 55.1s[1]
Declination +59° 36′ 15″[1]
Redshift -17 ± 5 km/s[1]
Distance 9.8 Mly[2]
Type SAB(rs)bc[1]
Apparent dimensions (V) 5′.82 × 1′.57[1]
Apparent magnitude (V) 16.0[1]
Other designations
UGCA 39,[1] PGC 10217,[1] Sharpless 197
See also: Galaxy, List of galaxies

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.

Maffei 2 is the spiral galaxy near the bottom of this image.


Maffei 2 is visible in this image.

See also[edit]

References[edit]

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for Maffei 2. Retrieved 2006-11-25. 
  2. ^ a b Karachentsev, 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. 
  3. ^ "The Hidden Galaxy". NASA. Retrieved 2011-05-03. 

External links[edit]

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