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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 702: TCP J21040470+4631129 to be observed with HST

Note: The HST observations of  TCP J21040470+4631129 have been postponed due to the target's going into (super)outburst on 2020 March 31. The observations will be rescheduled at a later time and this notice will be updated accordingly; a new Alert Notice may also be issued. However, photometry is still requested (please see AAVSO Alert Notice 703 for details).  -  Elizabeth O. Waagen, April 2, 2020

 

March 27, 2020

Solar Bulletin - Volume 76, Number 02

The February Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy: https://www.aavso.org/solar-bulletin

The February SID Data report is available at https://www.aavso.org/sid-database

LPV of the Month: March 2020 - SS Cru

SS Crucis—Reflections on a Forgotten Mira Variable

By Peter Williams

Alert Notice 700: EE Cep observing campaign 2020-2021

Note:  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 699: V386 Ser HST observing schedule revised

Note: The HST observations of V386 Ser will take place Friday, 2020 February 28. Positive observations are CRITICAL for the nights of Feb 26-27 and 27-28. Please report observations immediately. - Elizabeth O. Waagen, 2020 February 26

February 14, 2020

Solar Bulletin - Volume 76, Number 01

The January Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy: https://www.aavso.org/solar-bulletin

 

Alert Notice 698: V386 Ser to be observed with HST

Note: Please see AAVSO Alert Notice 699 for updated HST schedule and observing instructions. - Elizabeth O. Waagen, February 14 2020.

February 7, 2020

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