Alert Notice 768: V1239 Her to be observed with HST
January 31, 2022
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
Campaigns and Observing Reports: https://www.aavso.org/hst-campaign-dwarf-novae-2021-2022
Cataclysmic Variables: https://www.aavso.org/hst-campaign-dwarf-novae-2021-2022-01