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LIGHT CURVE OF HD 200925.

Authors :
DuPuy, D. L.
Source :
Publications of the Astronomical Society of the Pacific; February 1981, Vol. 93 Issue: 551 p126-128, 3p
Publication Year :
1981

Abstract

The light curve of the star HD 200925 is investigated based on an analysis of published photoelectric observations. A preliminary search of the data for periodicities using the Jurkevich period search method indicates a period of 0.267 days, although the observations reported by Bedolla and Pe a (1979) for the night of September 26-27, 1978 are systematically brighter by about 0.08 magnitudes than the other observations. A nonlinear least squares fit of the values of the period, approximate amplitude (0.4 magnitude) and phase angle of the periodicity (0.9 radian) derived to a sinusoid is shown to differ significantly from the data obtained on the nights of September 24-25, 25-26 and 27-28, 1978, although confirming the period of 0.2672 days. Data also suggest the presence of a secondary period of 0.36 days, which, however, may rather be due to the asymmetry of the observed light curve.

Details

Language :
English
ISSN :
00046280 and 15383873
Volume :
93
Issue :
551
Database :
Supplemental Index
Journal :
Publications of the Astronomical Society of the Pacific
Publication Type :
Periodical
Accession number :
ejs56696128
Full Text :
https://doi.org/10.1086/130788