[vsnet-alert 16938] Re: TCP J19001574+0132356: possible nova (11.7 mag) in Aquila
bas at lowell.edu
Sat Feb 22 08:57:07 JST 2014
On Fri, 2014-02-21 at 23:10 +0000, Patrick Schmeer wrote:
> TCP J19001574+0132356
> R.A. 19h00m15.74s Decl. +01°32'35.6" (J2000.0)
> 11.7 mag (unfiltered) on 2014 Feb. 21.8564 UT
> "Koichi Nishiyama, Kurume, Japan and Fujio Kabashima, Miyaki, Japan report a discovery of TCP (mag.= 11.7) in Aql on two 40-s unfiltered CCD frames taken around 2014 Feb. 21.8564 UT ( limiting magnitude=13.2 ), 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 2014 Feb 21.8695 UT (limiting magnitude=18.0), 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 2013 Dec 07.392 UT(limiting mag.= 13.1) and 2014 Feb. 15.866 UT (limiting mag.= 13.1) nor on USNO-B1.0, We have checked in Minor Planets. nearest star in USNO B1.0 has position end figures 15s952, 41"60, distance 6".8, magnitudes B2=16.52 R2=14.50 I=13.67"
On the UKIDSS DR6 K-band image is a star right at
the detection threshold within a few tenths of an arcsecond
of the position quoted. I estimate 19 00 15.73 +01 32 35.8
using the image obtained from the Goddard SkyView utility.
(The image is epoch 2005.6724.) Comparing with other stars
in the immediate field, it is about K mag 19 to 20.
Perhaps once the coordinates are refined, then a more certain
link can be made.
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