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 3, 2007: It was reported in CBET 1091 by U. Munari et al. that the symbiotic star AG Draconis is again in outburst following the decline from its April 2006 bright outburst. They note that the decline apparently halted on 2007 July 07, and has since brightened steadily. Their observations place AG Dra at V = 8.98 on 2007 September 30.8 UT (B = 9.69 and B-V = +0.71). They also note the presence of strong hydrogen and helium emission lines.
April 3, 2017: Dr. Rudolf Gális (Pavel Jozef Šafárik University (Slovakia)) and colleagues have requested AAVSO assistance in observing the symbiotic variable AG Dra. Observations are requested as a follow-up to spectroscopic observations and in order to monitor the system for an anticipated outburst.
July 19, 2006
Editor's Note: In the original e-mail, CBET 577 was incorrectly identified as IAUC 577.
U. Munari (Istituto Nazionale di Astrofisica, Astronomical Observatory, Padova) has asked AAVSO observers to monitor AG Dra until the end of its current outburst period.
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
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AAVSO ALERT NOTICE 188 (July 14, 1994)
OUTBURST OF OLD NOVA 1822-27 LQ SAGITTARII
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
BITNET: aavso@cfa SPAN: cfa::aavso
INTERNET: aavso@cfa.harvard.edu
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 195 (November 23, 1994)
SYMBIOTIC STARS
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET: aavso@aavso.org
Tel. 617-354-0484 FAX 617-354-0665
AAVSO ALERT NOTICE 211 (August 1, 1995)
AAVSO ON WORLD WIDE WEB
We are proud to announce that the AAVSO now has a home page available on the World
Wide Web (WWW). The address of our home page on the WWW is:
http://www.aavso.org
Edward Smith (STScI) has requested nightly photometric monitoring of the symbiotic star AG Draconis during the period 2009 August 2, and tentatively scheduled to continue through mid-September 2009.
June 20, 2013: Dr. Andrea Dupree (Harvard-Smithsonian Center for Astrophysics) has requested AAVSO monitoring of the symbiotic variable AG Draconis from now through at least September 2013 for correlation with upcoming Chandra x-ray and HST ultraviolet observations.
