Special Notice #371: BB Ari observations particularly crucial now
September 24, 2013: HST/COS is scheduled to observe the SU UMa-type variable BB Ari:
BB Ari 2013 September 27 03:01:26 through 06:29:37 UT
The HST scheduling team will likely make their final decision early on September 26, so your observations are essential NOW.