Note: The HST observations of AB Aur scheduled for 2024 January 17-18 have been cancelled because HST has gone into safe mode. Rescheduling information will be given here and in the forum threads below when available. In the meantime, please continue to observe AB Aur according to the cadence given below. - Elizabeth O. Waagen, January 17, 2024
January 15, 2024
December 20, 2023
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns & Observation Reports: https://www.aavso.org/ab-aur-campaign-2023
- Young Stellar Objects: https://www.aavso.org/ab-aur-campaign-2023-01
February 27, 2023
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns & Observation Reports: https://www.aavso.org/ab-aur-campaign-2023
- Young Stellar Objects: https://www.aavso.org/ab-aur-campaign-2023-01
Note: HST observations of AB Aur have been scheduled for 2023 December 31 - 2024 January 1 UT. Please see Alert Notice 844 for more information. - Elizabeth O. Waagen, December 20, 2023
January 17, 2023
July 5, 2022
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observing Reports: https://www.aavso.org/odysseus-x-completion-survey-targets-01
- Young Stellar Objects (YSO): https://www.aavso.org/odysseus-x-completion-survey-targets
March 31, 2022
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observing Reports: https://www.aavso.org/odysseus-viii-southern-targets-marchapril-01
- Young Stellar Objects (YSO): https://www.aavso.org/odysseus-viii-southern-targets-marchapril
Note: Please continue observations at least through the 2023 observing season. - Elizabeth O. Waagen, August 1, 2023
March 19, 2022
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/ex-lup-campaign-2022
- Young Stellar Objects (YSO): https://www.aavso.org/ex-lup-campaign-2022-01
Just over one year ago, a small spacecraft called MOST began a month-long observing run on one of the most spectacular objects in Earth's skies, the beautiful Trapezium region at the heart of the Orion Nebula, M42. My collaborators and I applied for and received this observing time to survey variability in this young stellar cluster -- partly to study the eclipsing binary BM Ori (theta 01 Orionis B), but also to survey as many young stars that we were able to using the unique capabilities of MOST. Since then, I along with my collaborators -- our Director Arne H
February 15, 2011: Dr. Colin Aspin (U. Hawaii) has requested archival images and other observations of the FU Orionis variable V1647 Ori and the surrounding field over the previous 10 years in support of a study of this star. Aspin writes that he is hoping to obtain more data with which to create a multi-year light curve of this star to put present-day observations in context of its past behavior.
