May 31, 2013: Further to AAVSO Alert Notice 471 (http://www.aavso.org/aavso-alert-notice-471)and AAVSO Special Notice #354 (http://www.aavso.org/aavso-special-notice-354), HST/COS is scheduled to observe the WZ Sge-type cataclysmic variable V1108 Her:
V1108 Her 2013 June 6 09:32:19 through 13:42:14 UT
PLEASE NOTE THAT THE DATE HAS BEEN REVISED FROM SPECIAL NOTICE #354.
May 22, 2013: Further to AAVSO Alert Notice 471 (http://www.aavso.org/aavso-alert-notice-471) and AAVSO Special Notice #353 (http://www.aavso.org/aavso-special-notice-353), HST/COS is scheduled to observe the SU UMa-type cataclysmic variable DT Oct TOMORROW:
DT Oct 2013 May 23 23:31:07 through May 24 02:05:03 UT
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
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
April 22, 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 QZ Lib:
QZ Lib 2013 Apr 26 14:37:44 through 21:23:30 UT
February 12, 2013: The coordinates issued with AAVSO Special Notice #334 (http://www.aavso.org/aavso-special-notice-334) were incorrect; they were taken from an article by Robertson et al. (2000AJ....119.1365R).
The correct coordinates for GR Ori are:
R.A. 05 21 34.98 Dec +01 10 10.2 (2000.0)
The webpage version of AAVSO Special Notice #334 has been updated with these coordinates.
February 11, 2013: Observer Rod Stubbings (Tetoora Road, Vic., Australia) reports an outburst of the suspected old nova GR Ori (== Nova Ori 1916), observing the star at a visual magnitude of 13.0 on 2013 February 11.476 UT (JD 2456334.976). This observation was confirmed by observer Stephen Hovell (Kaitaia, New Zealand), who also reported the star at 13.0 on February 11.461.
December 11, 2012: Further to AAVSO Alert Notice 471 (www.aavso.org/aavso-alert-notice-471) and AAVSO Special Notice #309 (www.aavso.org/aavso-special-notice-309), HST COS is observing the WZ Sge-type cataclysmic variable SDSS J075507.70+143547.6 December 13-14:
SDSS J075507.70+143547.6 13 December 2012 23:32:57 through 14 December 04:45:44 UT
November 13, 2012: The HST COS far ultraviolet observations of the WZ Sge-type cataclysmic variable FL Psc (ASAS J002511+1217.2) will be taking place 2012 November 15 22:48:37 UT through November 16 04:49:58 UT (AAVSO Special Notice #305 www.aavso.org/aavso-special-notice-305).
November 5, 2012: Further to AAVSO Alert Notice 471 (Gaensicke, Patterson, and Henden), the HST COS (Cosmic Origins Spectrograph) far ultraviolet observations of THE NEXT TARGET from the list, the WZ Sge-type cataclysmic variable
FL Psc (ASAS J002511+1217.2),
have been scheduled for 2012 November 15 22:48:37 UT through 2012 November 16 04:49:58 UT.
