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HD 7615


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Spectral Classification of Stars in A Supplement to the Bright Star Catalogue
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No Supermassive Black Hole in M33?
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UBVRI photometry of stars useful for checking equipment orientation stability
Several sets of stars have been measured, equally spaced around the skyin right ascension, over a range in declination from -75 deg to +30 deg.The goal was to obtain a number of well-observed stars with qualityinternally consistent magnitudes and color indices. The stars wereneeded to check orientation effects of photometric equipment.

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Observation and Astrometry data

Constellation:うお座
Right ascension:01h16m27.77s
Declination:+23°35'22.0"
Apparent magnitude:6.68
Distance:161.29 parsecs
Proper motion RA:-12.5
Proper motion Dec:-9.8
B-T magnitude:6.731
V-T magnitude:6.685

Catalogs and designations:
Proper Names
HD 1989HD 7615
TYCHO-2 2000TYC 1747-2168-1
USNO-A2.0USNO-A2 1125-00430399
HIPHIP 5942

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