Journal
ASTRONOMY & ASTROPHYSICS
Volume 367, Issue 1, Pages 297-298Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20000567
Keywords
stars : activity; stars : general; stars : statistics; techniques : photometric
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The data known as the Hipparcos Photometry obtained with the Hipparcos satellite have been investigated to find those stars which are least variable. Such stars are excellent candidates to serve as standards for photometric systems. Their spectral types suggest in which parts of the HR diagrams stars are most constant. In some cases these values strongly indicate that previous ground based studies claiming photometric variability are incorrect or that the level of stellar activity has changed.
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