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HD 162868


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관련 글

Photometric variability in chromospherically active stars. III - The binary stars
Differential UBV photometry of 49 late-type chromospherically activebinary stars has been obtained. A total of 12,353 differential UBVmagnitudes have been acquired and are used to determine seasonalphotometric periods, amplitudes, mean brightnesses, maximum spotamplitudes, 'unspotted' differential magnitudes, and times of minimumlight. Standard Fourier techniques are used to investigate the cause ofthe light variability. Eight stars are found which exhibit lightvariations due not to spot activity but rather to ellipticity and/orreflection effect. Others show combinations of all three effects. Someof the systems also show substantial differences between theirrotational and orbital period.

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관측 및 측정 데이터

별자리:뱀주인자리
적경:17h52m54.60s
적위:+08°41'29.5"
가시등급:9.665
적경상의 고유운동:11.4
적위상의 고유운동:5.6
B-T magnitude:11.191
V-T magnitude:9.791

천체목록:
일반명   (Edit)
HD 1989HD 162868
TYCHO-2 2000TYC 1007-1751-1
USNO-A2.0USNO-A2 0975-09894782

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