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Early-type stars in the stellar associations Per OB1, SCO OB1, and CYG OB1 by observations with space telescope 'Glazar'
This paper presents results of observations at 1640 A carried out inSeptember 1988 with the Soviet space telescope Glazar on the regions ofstellar associations Per OB1, Sco OB1, and Cyg OB1. Thirty twophotographs were obtained, on which 94 images of stars were identifiedand measured. In stellar associations Per OB1, Sco OB1, and Cyg OB1, 42,22, and 30 hot stars brighter than 10 mag at 1640 A were detected,respectively. A comparison of Glazar measurements of stellar magnitudeswith those available from TD-1 telescope measurements and from ANSmeasurements showed reasonably good agreement.
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| The Distribution of Early Type Stars in the Direction of Stellar Associations PERSEUS-OB1 SCORPIUS-OB1 and CYGNUS-OB1
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| Preliminary catalog of the declinations of 96 stars of the international program, compiled from Kitab PZT observations
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Member of following groups:
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Observation and Astrometry data
| Constellation: | Cygnus |
| Right ascension: | 20h24m26.00s |
| Declination: | +38°57'54.1" |
| Apparent magnitude: | 7.96 |
| Distance: | 1136.364 parsecs |
| Proper motion RA: | 1.2 |
| Proper motion Dec: | -1 |
| B-T magnitude: | 7.816 |
| V-T magnitude: | 7.949 |
Catalogs and designations:
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