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BVR Photometry of Northern Hemisphere Luminous Stars. IV.
CCD-based BVR photometry for 77 stars drawn from volumes II, III, and IVof the Case-Hamburg Luminous Stars in the Northern Milky Way catalog isreported. The majority of these stars lie in the first Galacticquadrant; 69 of them were previously unobserved.
| UBV beta Database for Case-Hamburg Northern and Southern Luminous Stars
A database of photoelectric UBV beta photometry for stars listed in theCase-Hamburg northern and southern Milky Way luminous stars surveys hasbeen compiled from the original research literature. Consisting of over16,000 observations of some 7300 stars from over 500 sources, thisdatabase constitutes the most complete compilation of such photometryavailable for intrinsically luminous stars around the Galactic plane.Over 5000 stars listed in the Case-Hamburg surveys still lackfundamental photometric data.
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Member of following groups:
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Observation and Astrometry data
| Constellation: | Cygnus |
| Right ascension: | 21h34m34.41s |
| Declination: | +55°05'21.2" |
| Apparent magnitude: | 9.041 |
| Proper motion RA: | -0.6 |
| Proper motion Dec: | -4.2 |
| B-T magnitude: | 9.337 |
| V-T magnitude: | 9.066 |
Catalogs and designations:
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