Affiliation
American Association of Variable Star Observers (AAVSO)
Fri, 06/03/2016 - 21:07
AAVSO Special Notice #417 announces an urgent request for B and V photometry of the symbiotic variable CH Cyg from now through August. Please see the notice for details and instructions.
Many thanks, and good observing,
Elizabeth Waagen, AAVSO HQ