GCVS Variability Types and Distribution Statistics of Designated Variable Stars According to their Types of Variability ======================================================================== I. GCVS Variability Types. ... Amplitudes usually do not exceed 0.1 mag. ... RR Variables of the RR Lyrae type, which are radially-pulsating giant A-F stars having amplitudes from 0.2 to 2 mag in V. Cases of variable light-curve shapes as well as variable periods are known. ... RV Variables of the RV Tauri type. ...
Journal of the Amateur Astrono mers Association of New York September 2010 Volume 58 Number 9, ISSN 0146-7662 EYEPIECE around other stars and transported to our solar system. ... Astronomers found several stars with surface temperatures mor e than 71,500 degr ees, mor e than seven times hotter than the Sun. ... Astronomers have found a disk of dust around a huge, massive star in its early stages of growth, indicating that stars big and small for m by the same mechanism. ...
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