Alert Notice (un-numbered April 29, 1980): Special Alert Notice II [dwarf novae]
April 29, 1980
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
187 Concord Avenue, Cambridge, MA 02138 USA
Tel. 617-354-0484
SPECIAL ALERT NOTICE - II
SS Cyg
Alert Notice 172: 1908+01 Nova Aquilae 1993 [V1419 Aql] AND Brightening of 1556-40 EX Lupi AND Revision of request to monitor 2138+43 SS Cygni and 1014+20 AD Leo AND 1719-23 Nova Ophiuchi 1993 [V2295 Oph] AND 0947+69 SN 1993J in NGC 3031
May 18, 1993
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 172 (April 22, 1993)
1908+01 NOVA AQUILAE 1993 [V1419 AQL]
Special Notice #414: SS Cyg monitoring continues for radio campaign
April 5, 2016: Further to AAVSO Alert Notice 536, close monitoring of the cataclysmic variable SS Cyg is urgently requested. Immediate notification of the beginning of the anticipated outburst is crucial and is requested.
The success of the multiwavelength (radio and optical) observing campaign on SS Cyg underway depends on immediate reporting of outburst behavior to trigger multi-site radio observations.
Alert Notice 180: 2337+56 Nova Cassiopeiae 1993 [V705 Cas] AND Special request to monitor dwarf novae
February 8, 1994
2337+56 NOVA CASSIOPEIAE 1993 [V705 Cas]
This bright nova, discovered on December 7.47 UT by Syuichi Nakano of Japan at photographic magnitude 6.5 (see AAVSO Notice 179), has been very well monitored by observers worldwide. Its optical light curve, created from observations reported to the AAVSO, indicates it brightened to about visual magnitude 5.7 by mid·Oecember, and then has slowly declined to magnitude 8.4 by February 7, with fluctuations as much as 1 magnitude in amplitude.
Alert Notice 179: 2337+56 Nova Cassiopeiae 1993 AND Brightening of 0849+20 OJ 287 Cnc AND Close monitoring requested
December 14, 1993
2337+56 NOVA CASSIOPEIAE 1993 [V705 Cas]
Alert Notice 536: SS Cyg monitoring requested for radio campaign
February 8, 2016: Further to AAVSO Special Notice #412, Dr. James Miller-Jones (International Centre for Radio Astronomy Research, Curtin University, Perth, Western Australia) and colleagues have requested AAVSO assistance in support of their multiwavelength (radio and optical) campaign on the dwarf nova SS Cyg. Close monitoring of SS Cyg and immediate reporting of observations to the AAVSO via WebObs is requested beginning now.
Special Notice #412: SS Cyg monitoring needed for radio campaign
February 4, 2016: A multiwavelength (radio and optical) observing campaign on SS Cyg is underway, and AAVSO participation is urgently requested. An AAVSO Alert Notice will be issued February 5 with full details.
The purpose of this Special Notice is to alert observers right now to the need to monitor SS Cyg very closely and report your observations to the AAVSO via WebObs at once. It is likely to go into outburst very soon, and immediate reporting of outburst behavior is crucial to the success of the campaign.
Special Notice #206: Request for photometry of the dwarf nova SS Cygni
April 21, 2010: Further to AAVSO Special Notice #204 (2010 April 15), we are requesting additional observations of the bright dwarf nova SS Cygni currently in outburst. SS Cyg is currently beginning a dwarf nova outburst, and observations of this star made with the EVLA have detected the source at radio wavelengths. Observations of SS Cyg have been scheduled with the VLBA on 2010 April 22 and April 23.
Special Notice #204: Request for monitoring of SS Cygni in support of EVLA/VLBA radio observations
April 15, 2010: Dr. James Miller-Jones (NRAO, Charlottesville) requests the assistance of AAVSO observers to provide rapid notification of the next outburst of the dwarf nova SS Cygni. A confirmed detection of an outburst will be used to trigger-radio wavelength observations of SS Cygni using the NRAO's EVLA and VLBA radio telescopes. Radio observations will be used to study jet formation in dwarf novae, and rapid notification of the onset of outburst is needed. This project follows in the footsteps of a previous campaign by Dr.
Alert Notice 184: Brightening of YY Dra (= DO Dra) AND Requests for monitoring (SS Cyg, EX Hya, VW Hyi, AM Her)
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 184 (May 17, 1994)
BRIGHTENING OF 1137+72 YY DRACONIS (= DO DRACONIS)