Special Notice #317: HST COS observing HS 0218+3229 2012 December 22 and SDSS J093249.57+472523.0 is probable next target
December 20, 2012: Further to AAVSO Alert Notice 471 (www.aavso.org/aavso-alert-notice-471) and AAVSO Special Notice #315 (www.aavso.org/aavso-special-notice-309), HST COS is scheduled to observe the U Gem-type cataclysmic variable HS 0218+3229 on December 22: