'The mean visual absolute magnitude of N-type stars wlıich are not kno’vvn to be variable has been calculated from differential galactic rotation. Comparison with the absolute magnitudes of N-type semi-regular variables and N-type stars in clusters and binaries indicates that non-variables are comparable in brightness to the variables at mean light rather than at maximum light.”
Primary Language | English |
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Subjects | Mathematical Sciences |
Journal Section | Research Articles |
Authors | |
Publication Date | January 1, 1973 |
Submission Date | January 1, 1973 |
Published in Issue | Year 1973 Volume: 22 |
Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics.
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