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observing campaign

AAVSO Alert Notices for Observing Campaigns and Discoveries

Note: This page, together with the AAVSO Target Tool Alerts/Campaigns target list, replaces the following AAVSO webpages: AAVSO Alert Notice Archive, AAVSO Special Notice Archive, and the original Observing Campaigns webpage. - July 2017

An AAVSO Alert Notice is issued irregularly in order:

Alert Notices and Observing Campaigns webpages consolidated

In order to help simplify answering the question "What should I observe tonight?", we have consolidated some of the places on the AAVSO website to look for information on urgently-needed observations. As of July 31, 2017, the three webpages:

have been consolidated into one new page:

Special Notice #62: Update on Blazar Monitoring Campaign

August 24, 2007: The campaign to monitor blazars as described in AAVSO Alert Notice 353 continues, and observations of any and all of the ten targets are welcomed. The VERITAS telescope is currently in standby while the Arizona monsoon season progresses, but the rainy season typically ends in late August or early September. Please observe these objects now to familiarize yourself with the fields and to establish a recent baseline of behavior for future analysis.

Special Notice #77: Update on Alert Notice 353 -- blazar monitoring campaign

October 30, 2007: The campaign to monitor blazars as described in Alert Notice 353 is ongoing, and the triggering thresholds for VERITAS observations have recently been updated by the PI, Dr. Markus Boettcher.

The blazar 1ES 0120+340 (1ES0120+34, AAVSO Designation 0117+33) has recently been seen just above the new triggering threshold of Rc = 17.0, and observations of this source are requested over the next several weeks. 1ES 0120+340 is located at coordinates

RA: 01:23:08.6 , Dec: +34:20:48 (J2000)

Observing Campaigns

[Note: if you are seeking confirmation of what you believe is a recent discovery, click on the link in the box at the right.  For general inquiries, please use our Contact form and select "General Observing" as the subject.]

Subscribe to AAVSO Alert Notice

June 2017

To subscribe to the AAVSO Alert Notice: Please log in to the AAVSO website and click on "My account" at the top right of the page, and then click the "Email Settings" tab. Check the box next to "Alert Notices". Be sure to save your settings! 

To unsubscribe: Please follow the above  procedure but unclick the box and save your settings.

Observing Campaigns [new]

[Note: if you are seeking confirmation of what you believe is a recent discovery, go to this page on reporting potential discoveries.  For general inquiries, please use our Contact form and select "General Observing" as the subject.]

History of AAVSO Alert Notices and AAVSO Special Notices

Notifying observers and researchers of discoveries and requests for AAVSO observing assistance

Prior to the inception of the AAVSO Alert Notice in 1974, observers were alerted to a discovery or the need for observations of an object via a post card from AAVSO HQ or, if extremely urgent, a phone call from the Director or his/her assistant.

The AAVSO Alert Notice

Alert Notice 535: R Aqr observing campaign

Ongoing visual, photometric, and spectroscopic observations of R Aqr about once every 10 days are requested, both to detect and observe the next eclipse and to continue the light curve of this star that has been in the AAVSO observing program for over a century.   Elizabeth O. Waagen, August 2017

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