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TYC 2807-2069-1


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A UV image of M31
A UV(2000 A) picture of the Andromeda galaxy (M31) was obtained from aballoon-borne experiment. In addition to the central region of thegalaxy, the general spiral structure is seen as a ring which coincideswith the distribution of the OB associations and H II regions. Theelliptical companion NGC 205 is also barely detected. The fluxes of thisgalaxy NGC 205 and of NGC 206, a bright association in the spiralstructure of M31, are found compatible with their known stellar content.For the central part of M31, the flux is in agreement with previousdeterminations. Detailed analysis confirms the diffuse aspect of thiscentral region and reveals a well peaked luminosity distribution.Possible origins for the central UV radiation are also discussed.

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Observation and Astrometry data

Constellation:アンドロメダ座
Right ascension:01h02m26.27s
Declination:+42°09'21.0"
Apparent magnitude:9.836
Proper motion RA:-4.7
Proper motion Dec:-14.3
B-T magnitude:9.992
V-T magnitude:9.849

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 2807-2069-1
USNO-A2.0USNO-A2 1275-00619624
HIPHIP 4851

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