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HD 90042


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관련 글

Photometry of 50 suspected variable stars
Fifty stars have been chosen as suspected variable stars and analyzedfor variability. A large portion of this sample are stars that areeither proved active chromosphere stars or are candidates for suchactivity. The photometric data base consists of differential Vmeasurements of the Vanderbilt 16 inch (41 cm) automatic photoelectrictelescope and 25 observers at 26 observatories worldwide. Publishedphotometric data have also been utilized, with proper adjustments madeto ensure that all magnitudes are differential. Searches for photometricperiod, amplitudes, and times of minimum light showed 68 percent of thesample to be photometrically variable with periods found for 34. Twostars were deemed norvariable for the period of observation. Conclusivestatements could not be made concerning the photometric variability ofthe 14 remaining stars.

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관측 및 측정 데이터

별자리:사자자리
적경:10h23m47.14s
적위:+14°49'20.6"
가시등급:8.63
거리:131.926 파섹
적경상의 고유운동:8
적위상의 고유운동:-20
B-T magnitude:9.152
V-T magnitude:8.674

천체목록:
일반명   (Edit)
HD 1989HD 90042
TYCHO-2 2000TYC 844-183-1
USNO-A2.0USNO-A2 0975-06483086
HIPHIP 50911

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