1971•Publications of the Astronomical Society of the PacificOpen access

A Photometric Study of the δ Scuti Star HR 2989

John R. Percy

Abstract

HR 2989 is a 8 Scuti star with a period of 0d09526 and amplitudes in V, B, and U of 0"'055, , and , respectively. In each color the light variations are in phase, nearly sinusoidal, and constant in amplitude. The period is consistent with those of other 8 Scuti stars of similar absolute magnitude (+ 1.4) and color index ((b-y) = 0.112). Key words: variable stars - photometry - 8 Scuti variable

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Key concepts: Photometry (optics), Color index, Variable star, Physics, Astrophysics, Amplitude, Stars, Light curve