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Photometry of stars in the uvgr system
Photoelectric photometry is presented for over 400 stars using the uvgrsystem of Thuan and Gunn. Stars were selected to cover a wide range ofspectral type, luminosity class, and metallicity. A mean main sequenceis derived along with reddening curves and approximate transformationsto the UBVR system. The calibration of the standard-star sequence issignificantly improved.
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Observation and Astrometry data
| Constellation: | Cygnus |
| Right ascension: | 21h02m07.71s |
| Declination: | +47°58'34.1" |
| Apparent magnitude: | 8.697 |
| Distance: | 341.297 parsecs |
| Proper motion RA: | -18.6 |
| Proper motion Dec: | -18.6 |
| B-T magnitude: | 10.437 |
| V-T magnitude: | 8.841 |
Catalogs and designations:
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