1974•Publications of the Astronomical Society of the PacificOpen access

An Unusual RR Lyrae-Type Variable

A. Przybylski, M. S. Bessell

Abstract

The high-velocity star HD 202759 is a variable star with an irregular amplitude of about 0 '08 and a quasi-period of about 12 hours. Its surface gravity, log g is 3.1 and its effective temperature 7400 K. It is probably an RR Lyrae star close to the blue edge of the instability strip. Key words: RR Lyrae stars

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Key concepts: RR Lyrae variable, Instability strip, Variable star, Astrophysics, Physics, Astronomy, Star (game theory), Amplitude