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THE ASTRONOMER Electronic Circular No 3109      2015 Sep 19 14.03UT
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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UV PERSEI
Jose Ripero reports an outburst of the dwarf nova UV Per recorded as
magnitude 12.2v on Sept 17.890.

An independent detection was also made by Eddy Muyllaert on Sept 17.895UT at
magnitude 12.1.

NEW CHI CYGNIDS METEOR SHOWER
P. Jenniskens, SETI Institute, reports detection of an outburst from a new
Jupiter-family comet shower, the chi Cygnids. Martin Breukers and Carl
Johannink first noticed five nearly identical orbits in multi-station video
observations of the CAMS BeNeLux network during Sept. 14d19h23m-15d03h35m
UT.

Partial results from the CAMS California network add four meteors in the
observing interval Sept. 15d03h10m-15d12h45m.  The nine meteors detected
appeared between Sept. 14d21h and 15d11h UT (solar longitude 171.54-172.08
deg).  The geocentric radiant is at R.A. = 301.0 +/- 2.2 deg, Decl. = +32.6
+/- 1.6 deg (equinox 2000.0), with velocity v_g = 15.1 +/- 0.9 km/s.
The median orbital elements are (N = 9):  q = 0.949 +/- 0.003 AU, 
a = 2.75 +/- 0.40 AU, e = 0.655 +/- 0.041, i = 18.6 +/- 1.6 deg, Peri. =
209.9 ++/- 1.9 deg, Node = 171.64 +/- 0.23 deg (equinox 2000.0).

Confirmation of the outburst was found in the near-real time CMOR radar
observations posted at website URL
http://fireballs.ndc.nasa.gov/cmor-radiants/.  The 24-hr averaged maps
showed a small concentration of radiants at this position during the
observing period 15d05h15m-15d20h15m UT.
CBET 4144 issued 2015 September 17

Guy M Hurst