Report on the Photometric Observations of the Variable Stars DH Pegasi, DY Pegasi, and RZ Cephei

Volume 42 number 2 (2014)

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Ibrahim Abu-Sharkh

Harvard Summer School, Harvard University, Cambridge, MA; address correspondence to Dang Pham (dang.c.pham@hotmail.com)

Shuxing Fang

Harvard Summer School, Harvard University, Cambridge, MA; address correspondence to Dang Pham (dang.c.pham@hotmail.com)

Sahil Mehta

Harvard Summer School, Harvard University, Cambridge, MA; address correspondence to Dang Pham (dang.c.pham@hotmail.com)

Dang Pham

Harvard Summer School, Harvard University, Cambridge, MA; address correspondence to Dang Pham (dang.c.pham@hotmail.com)

Abstract

We report 872 observations on two RR Lyrae variable stars, DH Pegasi and RZ Cephei, and on one SX Phoenicis variable, DY Pegasi. This paper discusses the methodology of our measurements, the light curves, magnitudes, epochs, and epoch prediction of the above stars. We also derived the period of DY Pegasi. All measurements and analyses are compared with prior publications and known values from multiple databases.