AAVSO Spectroscopy Database (AVSpec)

Alert Notice 703: TCP J21040470+4631129 images, photometry, and spectroscopy urgently requested - REVISED

Note: This Alert Notice was revised from its original text to correct a misinterpretation of the request from Dr. Echevarria, to update the recent observations, and to update the status of scheduled HST observations.  -  Elizabeth O. Waagen, 2 April 2020

April 2, 2020   (original issued April 1, 2020)

Alert Notice 700: EE Cep observing campaign 2020-2021

Note:  Please continue observations at a cadence of 1 observation per week until further notice. - Elizabeth O. Waagen, July 6, 2021

Please continue observations at a cadence of 1 observation per week at least through 2021 June 15. See the post by Principal Investigator Dariusz Kubicki in the forum threads for this campaign (URLs below).  -  Elizabeth O. Waagen, 2020 June 29

The eclipse of EE Cep has occurred but continued monitoring is requested to establish post-eclipse behavior.  - Elizabeth O. Waagen, 2020 May 21

Alert Notice 696: R Aqr photometry (especially B) and spectroscopy needed


Note: Continued observations, particularly in B, V, and visual, are needed now and through the coming year. R Aqr is presently approaching solar conjunction and observations are very difficult, but they are extremely important as R Aqr is also approaching minimum. Please observe as long as possible now and pick up again as soon after conjunction as possible.  -  Elizabeth O. Waagen, 1 February 2021

Alert Notice 694: Spectroscopy of gamma Cas requested

Note: Principal Investigator Ernst Pollmann particularly requests higher-resolution (at least 10000) spectra of gam Cas.  -  Elizabeth O. Waagen, 21 May 2020

January 31, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/gam-cas-campaign
- Spectroscopy: https://www.aavso.org/gam-cas-campaign-01