AAVSO Alert Notice 751 requests BVRI photometry of the T Tau stars RU Lup and BP Tau in support of HST and XMM-Newton observations scheduled for August and September 2021. This campaign is Part IV of the ODYSSEUS campaign carried out in Alert Notices 741 and 748 (as well as in Alert Notices 725, 728, 731, 733, and 737).
Please note that the Forum threads are NOT the same as for Alert Notices 741 and 748. Forum threads to be used for RU Lup and BP Tau are:
Please subscribe to these threads if you are participating in the campaign so you can be updated by the astronomer and by HQ. Join in the discussion or ask questions there!
Many thanks, and Good observing,
Elizabeth O. Waagen, AAVSO HQ