Gamma Doradus (Gamma Dor, γ Doradus, γ Dor) is the third brightest star in the constellation of Dorado. It has an apparent visual magnitude of approximately 4.25 and is a variable star, the type star of the class of Gamma Doradus variables. These stars, like γ Doradus, are pulsating variables which vary in brightness by less than a tenth of a magnitude owing to nonradial gravity wave oscillations. The magnitude of γ Doradus itself has been observed to have two sinusoidal variations with periods of approximately 17.6 and 18.2 hours. There is also some additional unexplained, apparently random fluctuation.
^ abcdefghijGamma Doradus Stars: Defining a New Class of Pulsating Variables, Anthony B. Kaye et al., Publications of the Astronomical Society of the Pacific111, #761 (July 1999), pp. 840–844, Bibcode: 1999PASP..111..840K.
^ abcHR 1338, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line November 17, 2008.
^Gamma Dor, Jim Kaler, Stars. Accessed on line November 17, 2008.