American Association of Variable Star Observers (AAVSO)
Thu, 08/18/2016 - 21:20

AAVSO Alert Notice 548 announces an observing campaign on the unique binary system AR Sco. Information (including links to an article in Nature, a press release, a video, and more) and instructions may be found in the notice.

Good observing,

Elizabeth Waagen, AAVSO HQ