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T Tauri variable

Alert Notice 656: Chandra observation date revised for XZ Tau and HL Tau

Note: Edited November 20, 2018, to clarify the links to the forum threads for this campaign. - E. Waagen

November 7, 2018: Further to AAVSO Alert Notice 654, the date and time of the Chandra observations of the T Tauri stars XZ Tau and HL Tau scheduled for 2018 November 15 have been revised to November 11 and 12.

Dr. David Principe (MIT) informs us that Chandra is now scheduled to observe the targets on:

Alert Notice 654: XZ Tau and HL Tau monitoring needed for Chandra observations

Note: The November 15 observation with Chandra has been rescheduled to 2018 Nov. 11 17:37 - Nov. 12 00:01 UT and 2018 Nov. 12 08:01 - Nov. 12 14:27 UT. Please see AAVSO Alert Notice 656 for details. - Elizabeth O. Waagen

Alert Notice 584: Monitoring of PDS 110 requested to cover upcoming eclipse by exoplanet

Note: This campaign is officially over, but the astronomers would appreciate it very much if observers could make an occasional observation of PDS 110.  EOW March 29, 2018

Note: This Alert Notice was edited to add the magnitude range of PDS 110. EOW

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