AR Sco

Alert Notice 548: AR Sco observing campaign

August 18, 2016: Dr. Thomas Marsh (University of Warwick) and colleagues have requested AAVSO coverage of the intriguing binary AR Sco in support of upcoming Newton-XMM observations.

The XMM observations of AR Sco have been scheduled for:
2016 September 10 15:41 - September 11 02:26 UT