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HD 45090


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Research Note Hipparcos photometry: The least variable stars
The data known as the Hipparcos Photometry obtained with the Hipparcossatellite have been investigated to find those stars which are leastvariable. Such stars are excellent candidates to serve as standards forphotometric systems. Their spectral types suggest in which parts of theHR diagrams stars are most constant. In some cases these values stronglyindicate that previous ground based studies claiming photometricvariability are incorrect or that the level of stellar activity haschanged. Table 2 is only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/367/297

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Observation and Astrometry data

Constellation:いっかくじゅう座
Right ascension:06h25m52.33s
Declination:+11°07'33.2"
Apparent magnitude:6.384
Distance:139.276 parsecs
Proper motion RA:-6.5
Proper motion Dec:-9.1
B-T magnitude:6.449
V-T magnitude:6.39

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 45090
TYCHO-2 2000TYC 736-1027-1
USNO-A2.0USNO-A2 0975-03188561
HIPHIP 30602

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