Alert Notice 734: HM Sge monitoring needed for HST and SOFIA observations
March 15, 2021
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/hm-sge-campaign-2021
- Long Period Variables: https://www.aavso.org/hm-sge-campaign-2021-01