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News and Announcements

09 May Request for photometry of the dwarf nova SS Cygni

Further to AAVSO Special Notice 204 (2010 April 15), we are requesting additional observations of the bright dwarf nova SS Cygni currently in outburst. SS Cyg is currently beginning a dwarf nova outburst, and observations of this star made with the EVLA have detected the source at radio wavelengths. Observations of SS Cyg have been scheduled with the VLBA on 2010 April 22 and April 23. Continued optical monitoring of SS Cyg through the end of the current outburst is strongly encouraged, with intensive coverage requested during the VLBA observations.

09 May Rapid fading in the luminous blue variable S Doradus

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484