August 26, 2020
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/asas-j190559-21094-campaign
Please subscribe to this thread if you are participating in the campaign so you can be updated by the astronomer and by HQ. Join in the discussion or ask questions there!
February 3, 2020
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/r-aqr-campaign-2019
- Long Period Variables: https://www.aavso.org/r-aqr-campaign-2019-01
- Spectroscopy: https://www.aavso.org/r-aqr-campaign-2019-02
April 24, 2018: Drs. Jaroslav Merc and Rudolf Gális (both of the Pavel Jozef Šafárik University (Slovakia)), on behalf of their scientific team, have requested AAVSO assistance in observing the symbiotic variable AG Dra as a follow-up to spectroscopic observations and in order to monitor the system in its current outburst, which began in early April.
October 1, 2017 : Further to AAVSO Alert Notice 589, the likely windows for the Chandra and HST observations of the symbiotic variable R Aqr have been set as follow:
Chandra: 2017 October 11 - October 15
HST: 2017 October 13
December 30, 2007: Rapid brightening of the symbiotic star Z Andromedae (AAVSO 2328+48) has been reported by observers Eddy Muyllaert, Mike Gainsford, and John Bortle on the BAAVSS Alert newsgroup.
November 13, 2013: The symbiotic star AS 270 is in outburst, according to observations reported to vsnet-alert by Berto Monard (MLF; Calitzdorp, South Africa) and to the AAVSO International Database (AID) by Steve O'Connor (OCN; St. George's, Bermuda). O'Connor reports the star at V=11.72 +/-0.03 on 2013 November 13.405 UT (JD 2456609.905), well above its normal minimum magnitude of 14.2V.
October 12, 2010: As noted by U. Munari et al (ATel #2913, 2010 October 9), the symbiotic star CI Cygni is currently undergoing an eclipse of the outbursting star. CI Cyg has declined from about magnitude 9.7 in late August 2010 to V=11.1 currently.
