AAVSO Special Notice #412
February 4, 2016
SS Cyg monitoring needed for radio campaign
A multiwavelength (radio and optical) observing campaign on SS Cyg
is underway, and AAVSO participation is urgently requested. An
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.
Previous similar campaigns with Dr. James Miller-Jones and his
colleagues have been very successful. AAVSO observations are used
to trigger multi-site radio observations of SS Cyg in research on
radio emission from this dwarf nova, as well as for correlation with
the radio data during analysis.
Please keep a very close watch on SS Cyg. Visual and CCD/DSLR
(particularly V) observations are requested (no time series unless
outburst is underway and radio observations have been triggered).
Its normal minimum magnitude is ~11.8 V, but it can fluctuate to
around 11.5. If it becomes brighter than 11.5 V, it could well be
going into outburst. If it reaches 11.0, it is almost certainly on
its way up.
Please report your observations of SS Cyg to the AAVSO as soon
after you make them as possible. If you see it 11.5 or brighter,
please report them immediately.
Coordinates: RA 21:42:42.8 Dec. +43:35:10 (2000.0)
AAVSO finder charts for SS Cyg with comparison stars may be
generated using the AAVSO Variable Star Plotter (VSP;
https://www.aavso.org/vsp).
Please submit your observations to the AAVSO International
Database using the name 'SS CYG'.
This AAVSO Special Notice was compiled by Elizabeth O. Waagen.
----------------------------------
SUBMIT OBSERVATIONS TO THE AAVSO
Information on submitting observations to the AAVSO may be found at:
https://www.aavso.org/webobs
SPECIAL NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION
A Special Notice archive is available at the following URL:
https://www.aavso.org/special-notice-archive
Subscribing and Unsubscribing may be done at the following URL:
https://www.aavso.org/observation-notif ... ialnotices
SS Cyg monitoring needed for radio campaign
Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
solar research, comet observation, astrometry, etc.
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