From Robert Fidrich - CVnet-outburst   20/10/21 13:42

 

 

http://www.cbat.eps.harvard.edu/unconf/followups/J18523496-0018423.html

 

PNV J18523496-0018423   2012 10 20.4294*  18 52 34.96 -00 18 42.3  12.6

 

2012 10 20.4351

 

Koichi Nishiyama, Kurume,Japan and Fujio Kabashima, Miyaki,Japan report

a discovery of possible nova (mag.= 12.6) in Aql on two 40-s unfiltered

CCD frames taken around 2012 Oct. 20.429 UT ( limiting magnitude=13.8 ),

using a 105-mm f/4 camera lens (+SBIG STL6303E camera). We have

confirmed immediately the appearance of our discovery this PN on five

3-s unfiltered CCD frames taken around 2012 Oct 20.435 UT ( limiting

magnitude=18.5 ), using a Meade 200R 0.40-m f/9.8 reflector (+SBIG

STL1001E camera). (lens magnitude of referred catalogue Hipparcos,

others reference catalogue GSC-ACT) Nothing is visible at this location

on two past survey frames taken on 2012 Oct 12.470 UT(limiting mag.=

14.1) and 14.472 UT (limiting mag.= 14.1) nor on 2MASS,USNO-B1.0, but

prediscover mag=13.2 Oct. 15.428 UT ( limiting magnitude = 14.1 ),.

mag=12.3 Oct. 18.434 UT ( limiting magnitude = 14.1 ),. mag=12.2 Oct.

19.434 UT ( limiting magnitude = 14.0 ).. We have checked in Minor

Planets. nearest star in USNO B1.0 has position end figures 34s913,

42"48, distance 0".7, magnitudes R1=19.25 I=18.09

 

A chart and sequence is available from the AAVSO VSP.  Use the designation...

PNV J18523496-0018423

M. Mobberley                      D. Buczynski                          G. Poyner (BRT)                    D. Storey               Light Curve
I,R,C,V & B band images of Nova Aql 2012.  D. Buczynski.  C14  Oct 22 2012