S Coronae Borealis (S CrB)

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S Coronae Borealis is one of several well-known variable stars in the Northern Crown. A Mira-type variable, S CrB has a visual magnitude range 5.3-13.6 and a period of 360 days. This M6.5-8e star is an easy one to monitor over the course of a year. I have labeled five reference stars in the Origin image in order of decreasing visual magnitude. The action buttons will take you to detailed information on all six stars in the Simbad Database. Here are two references for S CrB:

1. S and U Coronae Borealis, Sky & Telescope Volume 75(6), June 1988, p. 631
2. Observing Variable Stars, David H. Levy, Cambridge University Press, Cambridge, UK, 1989, p. 142