June 24, 2013: The date given in AAVSO Special Notice #360 for the HST/COS observations of the SU UMa-type dwarf nova CC Scl has been REVISED from June 27 to:
June 24, 2013: HST/COS is scheduled to observe the SU UMa-type dwarf nova CC Scl:
May 8, 2013: Further to AAVSO Alert Notice 471 (http://www.aavso.org/aavso-alert-notice-471)and AAVSO Special Notice #350 (http://www.aavso.org/aavso-special-notice-350), HST/COS is scheduled to observe the eclipsing WZ Sge-type cataclysmic variable 1RXS J105010.3-140431:
1RXS J105010.3-140431 2013 May 10 07:51:01 through 12:01:57 UT
October 6, 2012: Following on AAVSO Alert Notice 471 (Gaensicke, Patterson, and Henden, www.aavso.org/aavso-alert-notice-471), the second set of targets the HST COS (Cosmic Origins Spectrograph) will be observing has been announced.