For this campaign, please go to https://www.aavso.org/content/v725-tau-photometry-needed-urgently .
Many thanks, and Good observing,
Elizabeth Waagen, AAVSO HQ
For this campaign, please go to https://www.aavso.org/content/v725-tau-photometry-needed-urgently .
Many thanks, and Good observing,
Elizabeth Waagen, AAVSO HQ