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observing campaign

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 - new page

[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.]

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June 2017

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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

January 19, 2016: Dr. George Wallerstein (University of Washington) has requested AAVSO coverage of the long period/symbiotic variable R Aquarii beginning immediately in support of high resolution spectroscopic observations planned for 2016 January 19 and 21.

Special Notice #406: KIC 02856960 entering eclipse window

August 7, 2015:  Further to AAVSO Alert Notice 525, we are entering the critical period of observations for KIC 02856960.  Time series observations are urgently requested for this eclipsing binary beginning immediately (2015 August 07, JD 2457242) and continuing for the next five days, through the end of 2015 August 12.

Alert Notice 525: Observing Campaign on KIC 02856960

July 31, 2015: The AAVSO requests time-series observations of the eclipsing binary system KIC 02856960 beginning immediately, with intensive coverage urgently requested during the window of 2015 August 8.0 through August 12.0.  Observations are requested on behalf of an international campaign coordinated by Dr.

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