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HD 181750


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Spectral Classification of Stars in A Supplement to the Bright Star Catalogue
MK spectral types are given for about 584 stars in A Supplement to theBright Star Catalogue. These are compared with Hipparcos parallaxes tocheck the reliability of those classifications. The estimated errors are+/-1.2 subtypes, and 10% of the luminosity classes may be wrong.

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Observation and Astrometry data

Constellation:Lyra
Right ascension:19h20m25.54s
Declination:+32°05'56.1"
Apparent magnitude:6.831
Distance:318.471 parsecs
Proper motion RA:1.1
Proper motion Dec:-4.8
B-T magnitude:6.708
V-T magnitude:6.821

Catalogs and designations:
Proper Names
HD 1989HD 181750
TYCHO-2 2000TYC 2657-1868-1
USNO-A2.0USNO-A2 1200-11201958
HIPHIP 95051
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