R Coronae Borealis in 1989

Details R Coronae Borealis in 1989 R Coronae Borealis in 1989

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102.1146f&link_type=abstract

Publications of the Astronomical Society of the Pacific v.102, p.1146

Astronomy and Astrophysics

Astronomy

9

Stars: Individual, Stars: R Coronae Borealis

Scientific paper

A fourth annual report of UBV photometry of R CrB is presented, in this case covering 98 nights of Automatic Photoelectric Telescope observations in the 1989 season. Throughout this time the star was below its usual maximum brightness, but a three-month quasi-stationary interval reveals the usual low-amplitude (˜0.2 mag in V) pulsations with the single period 0f41d.1 1d.5 which is not significantly different from the customary 43d.8 value.

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