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The Period of the Extreme Helium Star BD+1°4381
Published online by Cambridge University Press: 12 April 2016
Abstract
Photometry of the variable extreme helium star BD+1°4381 is used to improve the 21.2 day period found by Jeffery & Malaney (1985). The amplitude of the light-curve appears to be variable, resembling that of RY Sgr. Variability in the extreme helium star BD−1°3438 is also reported.
- Type
- III Hot Extreme Helium Stars
- Information
- International Astronomical Union Colloquium , Volume 87: Hydrogen Deficient Stars and Related Objects , 1985 , pp. 95 - 100
- Copyright
- Copyright © Reidel 1986