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HD 188777


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Optical observations of ultraviolet objects. II - Classification and photometry /l = 0 to 145 deg/
UBV photometry and MK spectral classification are presented for a sampleof stars originally selected as UV objects from satellite photometrywith the S2/68 experiment. Although most stars of the sample arespectroscopically normal, a number of hot, subluminous stars were alsofound. Radial velocities are given for some of the stars observed. It isproposed that the majority of the apparently normal early B stars athigh galactic latitudes which are not runaway stars are subluminousdisc-population analogues of horizontal branch B stars of Population II.

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Observation and Astrometry data

Constellation:Aquila
Right ascension:19h56m33.63s
Declination:+08°15'21.3"
Apparent magnitude:7.466
Distance:512.821 parsecs
Proper motion RA:-1.2
Proper motion Dec:-12.8
B-T magnitude:7.385
V-T magnitude:7.46

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 188777
TYCHO-2 2000TYC 1071-1141-1
USNO-A2.0USNO-A2 0975-17212031
HIPHIP 98124

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