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HD 10157


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The galactic foreground reddening in the direction of the nearby triangulum galaxy M33
Observations of 314 stars with the uvby-beta photometric system are usedto establish the reddening in the direction of the nearby Triangulumgalaxy M33. Color excesses are obtained for 151 A and F type stars in a1 deg radius centered around the galaxy. A color excess of E(b-y) =0.057 mag /E(B-V) = 0.077 mag/ is obtained for a distance modulus m - M= 10. A secondary result of this investigation is the discovery of sixsuspected variable stars, as well as ten observations of V Triangulum, aBeta Lyrae eclipsing variable.

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Observation and Astrometry data

Constellation:Dreieck
Right ascension:01h39m55.77s
Declination:+30°31'46.6"
Apparent magnitude:8.843
Distance:72.359 parsecs
Proper motion RA:2.2
Proper motion Dec:3.7
B-T magnitude:9.566
V-T magnitude:8.903

Catalogs and designations:
Proper Names
HD 1989HD 10157
TYCHO-2 2000TYC 2294-43-1
USNO-A2.0USNO-A2 1200-00694523
HIPHIP 7764

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