CR Boo outburst The helium DN CR Boo is in bright outburst. The object appears to be in a state of 46-d supercycle. cf. http://adsabs.harvard.edu/abs/2000MNRAS.315..140K YYYYMMDD(UT) mag observer 20110510.949 152 (Gary Poyner) 20110511.978 155 (Gary Poyner) 20110516.931 140C (Eric Morillon)