YSO

October 22, 2021

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/v1117-her-fading-01
- Young Stellar Objects (YSO): https://www.aavso.org/v1117-her-fading

Note: RU Lup is being observed with HST August 10-20, 2022. Please see Alert Notice 788 for details.  -  Elizabeth O. Waagen, August 1, 2022

August 3, 2021

June 8, 2021

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/fade-v1117-her  (goes to YSO forum thread)
- Young Stellar Objects (YSO): https://www.aavso.org/fade-v1117-her

Note: The astronomers request continued observations to ascertain whether or not the eclipse is completely over.  -  Elizabeth O. Waagen, 6 April 2021

October 28, 2020

Note: This campaign has been concluded as of 28 October 2020, BUT a new campaign from the SAME ASTRONOMER requesting coverage of the SAME TARGET is announced in AAVSO Alert Notice 723.  -  Elizabeth O. Waagen, 28 October 2020

July 14, 2020

Note: Please continue coverage of V582 Mon until further notice.  -  Elizabeth O. Waagen, 1 February 2021

January 24, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
  -   Campaigns and Observing Reports: https://www.aavso.org/v582-mon-campaign-2020
  -   Young Stellar Objects: https://www.aavso.org/v582-mon-campaign-2020-01

July 24, 2018: Dr. Dirk Froebrich (University of Kent) has requested AAVSO observations to support their upcoming observations of V1490 Cyg. He writes:

"Background: We have recently discovered that the young star V1490 Cyg (situated in the Pelican Nebula IC 5070) is periodically occulted by material in its circumstellar disk(*). Our light-curves indicate a period of about 32 days, and the obscurations are comparable to UX-Ori type eclipses.

March 15, 2018: Evan A. Rich (Ph.D. candidate, University of Oklahoma), and Drs. John Wisniewski (University of Oklahoma), John Tobin (University of Oklahoma), Carol Grady (Goddard Space Flight Center), and Mike Sitko (University of Cincinnati) have requested AAVSO assistance in monitoring the bright (6.9 V) Young Stellar Object NSV 24045 (HD 163296) from now through September 2018.

Note: Continuing monitoring of V1117 Her is requested until further notice.  -  Elizabeth O. Waagen, 17 April 2020

August 7, 2017: AAVSO Young Stellar Object (YSO) Section leader Michael Poxon (Great Plumstead, Norfolk, UK) requests coverage of the YSO V1117 Her.