BY Cam

BY Cam is an under observed Polar with a Blue magnitude range of 15.0-<17.0.  The visual range over the past 14 years has been 14.0-15.7.  Low states are rare, but the well defined orbital variations of ~2 magnitudes can take BY Cam to mag. 17 depending on the true magnitude level of the system.  This occasionally gives a misleading impression that BY Cam has or is entering a low state.   The CCD observations were obtained with the Bradford Robotic Telescope.

January 2000 proved to be an extremely active period for BY Cam, with short term variations of the order of one magnitude observed visually over a period of 24 hours, with 0.5-0.7 magnitude variations detected over a period of just three hours!  This plot shows activity from January 4th - January 24th 2000.

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