AAVSO: American Association of Variable Star Observers

Multi-color Photometry of the Hot R Coronae Borealis Star, MV Sagittarii

Volume 45 number 2 (2017)

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Arlo U. Landolt
Dept. of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803-4001 landolt@phys.lsu.edu
James L. Clem
Dept. of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001 jclem@phys.lsu.edu

Abstract

A long term program of photoelectric UBVRI photometry has been combined with AAVSO archival data for the hot, R CrB-type hydrogen deficient star MV Sgr. A deep minimum and a trend of decreasing brightness over time at maximum light thereby become evident. Variations seen via monitoring with a CCD detector also are described.