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HD 9690


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관련 글

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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관측 및 측정 데이터

별자리:고래자리
적경:01h34m51.32s
적위:-03°31'26.0"
가시등급:6.437
거리:251.256 파섹
적경상의 고유운동:12.4
적위상의 고유운동:-33.1
B-T magnitude:8.207
V-T magnitude:6.584

천체목록:
일반명   (Edit)
HD 1989HD 9690
TYCHO-2 2000TYC 4685-2207-1
USNO-A2.0USNO-A2 0825-00358947
HIPHIP 7362

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