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HD 4720


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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:Cetus
Right ascension:00h49m17.84s
Declination:-01°37'33.4"
Apparent magnitude:8.752
Distance:198.807 parsecs
Proper motion RA:22.9
Proper motion Dec:23.9
B-T magnitude:9.156
V-T magnitude:8.786

Catalogs and designations:
Proper Names
HD 1989HD 4720
TYCHO-2 2000TYC 4673-1066-1
USNO-A2.0USNO-A2 0825-00185369
HIPHIP 3842

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