(cba:news) Fwd: PNV J19150199+0719471, a UGWZ(?) in outburst at V=10.6

Joe Patterson jop at astro.columbia.edu
Mon Jun 3 08:54:51 EDT 2013


And here's a re-send of Patrick Schmeer's message giving details on this 
important star.  Almost certainly it will become one of the most
important dwarf novae in the sky.  Its high proper motion and high 
brightness indicate that it is one of the nearest CVs, yet it resisted 
discovery until now.  Food for thought.

joe




PNV J19150199+0719471

Newly discovered probable WZ Sge-type dwarf
nova in Aquila, currently at magnitude V=10.6
(discoverer: Koichi Itagaki (Yamagata, Japan)).
http://www.cbat.eps.harvard.edu/unconf/followups/J06270375+3952504.html

Astrometry and photometry by Enrique de Miguel:
R.A. 19:15:02.047 decl. +07:19:46.78 (J 2000.0)
2013 June 1.01 UT, V = 10.56, B = 10.40 (private message).

The blue colour and the large proper motion indicate that
PNV J19150199+0719471 (= IPHAS J191502.09+071947.6?)
is probably a dwarf nova in outburst (Taichi Kato,
vsnet-alert 15768).

According to the PPMXL catalog this object has a
large proper motion:
pmRA = -97.4 mas/yr and pmDE = -93.8 mas/yr.

PNV J19150199+0719471 is probably not a nova but
a nearby WZ Sge-type dwarf nova in outburst.
Spectroscopy and time-resolved photometry are strongly
recommended.

Clear skies,
Patrick

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