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THE ASTRONOMER Electronic Circular No 3034      2014 000 00 00.00UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK      Backup: gmh@wdcc1.bnsc.rl.ac.uk
WORLD WIDE WEB                         http://www.theastronomer.org
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VSX J213806.5+261957
Matthew Templeton, AAVSO reports:
Carey Chiselbrook (Georgia, United States) observed the WZ Sge-type dwarf
nova VSX J213806.5+261957 in outburst at a visual magnitude of 9.7 on 2014
October 22.059.  Prior to the outburst detection, the last observation
indicated the star was not in outburst less than 24 hours prior.

This star was first discovered in May 2010, and both Eddy Muyllaert and Gary
Poyner (via the BAAVSS mailing list) note that its recurrence time of less
than five years makes it notable among stars of this class. Gary Poyner also
notes that this object is on the BAA Recurrent Objects Programme, with the
name 1RXS J213807.1+261958.  Both visual and time-series instrumental
observations of VSX J213806.5+261957 are strongly encouraged. CCD
time-series observers may notice superhump oscillations appear within the
next few days, having a period near 0.06 days (~ 1.5 hours).

Observers should note that the variable lies within a few arcseconds of a
mag 15 star, and it may not be possible to separate the two once the
variable falls below 15th magnitude.  Please indicate in the comments field
of your observations whether you are able to split the two stars.

VSX J213806.5+261957 is located at the following (J2000) coordinates: RA: 21
38 06.68 , Dec: +26 19 56.6

Guy M Hurst