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WZ Sge star

Special Notice #335: Revised Coordinates for GR Ori (Nova Ori 1916)

February 12, 2013: The coordinates issued with 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.

Special Notice #308: Observations crucial starting tonight for FL Psc (ASAS J002511+1217.2)

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

Special Notice #305: HST COS observations of FL Psc (ASAS J002511+1217.2) scheduled

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.

Special Notice 257: Reminder to observe V455 And for HST observations

September 22, 2011: As detailed in AAVSO Alert Notice 448, Dr. Paula Szkody has requested monitoring of the WZ Sge-type cataclysmic variable V455 And through October 10. Observations tonight - September 22/23, tomorrow, and Saturday are crucial.

Special Notice 255: Cataclysmic Variable in Draco = PNV J18422792+4837425

September 14, 2011: IAU CBAT Central Bureau Electronic Telegram 2818 (Daniel W. E. Green, ed.) announces the discovery by Hideo Nishimura, Miyawaki, Kakegawa, Shizuoka-ken, Japan, of a cataclysmic variable in Draco on 2011 Sept. 5.529 UT at magnitude 11.8 (reported by S. Nakano, Sumoto, Japan). The variable was designated PNV J18422792+4837425 when posted on the Central Bureau's TOCP webpage.

Special Notice #245: Outburst of SV Ari

August 2, 2011:  SV Ari, a suspected WZ Sge star, has gone into outburst.  Rod Stubbings posted a 15.0 magnitude estimate on 110802.788 that has been confirmed by Gianluca Masi.  Gary Poyner says:

"Discovered by M & G Wolf on Heidelberg plates taken in November 1905 at mag 12.0p.  Kimpel & Jansch reported a possible sighting in September 1943, but this was not confirmed.  Nothing has been seen since."


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