Special Notice #350: 1RXS J105010.3-140431 and SDSS J153817.35+512338.0 next HST/COS targets
April 30, 2013: Further to AAVSO Alert Notice 471 (http://www.aavso.org/aavso-alert-notice-471), 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