AAVSO International Database

Note: The Chandra observations took place, and Dr. Karovaska requests continued monitoring of V694 Mon (MWC 560) until further notice.  -  Elizabeth O. Waagen, 17 April 2020

Observations of V694 Mon are scheduled for 11 March 2020 with HST, and for 22 March 2020 with XMM. Please continue to observe as indicated below but with the high-intensity coverage taking place March 9 through March 14 and March 19 through March 25.  -  Elizabeth O. Waagen, 6 March 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

Note: Note: Observations of V694 Mon are scheduled for 11 March 2020 with HST, and for 22 March 2020 with XMM. Please continue to observe as indicated in Alert Notice 695 but with the high-intensity coverage taking place March 9 through March 14 and March 19 through March 25.  -  Elizabeth O. Waagen, 6 March 2020

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

Note: As of 2020 March 2, Dr. Kenworthy asks that the campaign continue. He writes that "...the ring eclipse seems to have finished, but the star's overall brightness is slowly dropping. I don't think the story is over...the star is now 0.3 magnitudes fainter than its out of eclipse levels - still something interesting going on!" Please continue observations as described below until further notice.  -  Elizabeth O. Waagen, 2 March 2020

January 6, 2020

Note:  Please continue observations in all bands (particularly B and V) and spectroscopy - they are extremely important.  -  Elizabeth O. Waagen, 18 April 2023

Continued observations in all bands (particularly B and V) and spectroscopy are extremely important. Please continue nightly observations until further notice.  -  Elizabeth O. Waagen, 31 January 2020

Note: The exact schedules for the Chandra and HST observations of R Aqr (Alert Notice 689) are as follow:

December 20, 2019

AAVSO Forum thread (scroll to the bottom of a thread for latest posts):
 - Campaigns & Observation Reports: https://www.aavso.org/b-per-campaign-january-2020

December 4, 2019

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/lpv-maser-2018-campaign
- Long Period Variables: https://www.aavso.org/lpv-maser-2018-campaign-01

November 19, 2019

AAVSO Forum thread (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/tyc-2597-735-1-campaign-2019

Dr. Keri Hoadley (California Institute of Technology) requests AAVSO observers' assistance in obtaining B-band images of the star TYC 2597-735-1 over the next few weeks. This campaign needs to be accomplished before the target becomes unobservable in the West.

NOTES: Dr. Ruiz-Carmona communicated that this campaign is concluded as of December 19, 2019. - Elizabeth O. Waagen, December 19, 2019

Dr. Ruiz-Carmona communicates that they would like to observe EM Cyg after another outburst to obtain further data. Please continue to monitor EM Cyg as instructed below until further notice. - Elizabeth O. Waagen, December 2, 2019

November 8, 2019