Affiliation
Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
Mon, 03/31/2014 - 20:26
PNV J20214234+3103296
Discovered by Koichi Nishiyama and Fujio Kabashima (Japan) on 2014 March 31.7899 UT at 10.9 mag (CCD, unfiltered)
Coordinates: R.A. 20h21m42.34s Decl. +31°03'29.6" (J2000.0)
http://www.cbat.eps.harvard.edu/unconf/followups/J20214234+3103296.html
2014 03 31.8202
Koichi Nishiyama, Kurume, Japan and Fujio Kabashima, Miyaki, Japan report a discovery of possible nova (mag.= 10.9) in Cyg on two 40-s unfiltered CCD frames taken around 2014 Mar. 31.78990 UT (limiting magnitude=13.1), using a 105-mm f/4 camera lens (+SBIG STL6303E camera). We have confirmed immediately the appearance of our discovery this PN on five 5-s unfiltered CCD frames taken around 2014 Mar. 31.8202 UT (limiting magnitude=17.6), 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 past survey frames taken on 2014 Mar. 27.781 UT (limiting mag.= 13.4) but we found same object 12.4 mag. Mar. 30.769 UT (limiting mag.= 13.5) nor on DSS, USNO-B1.0, We have checked in Minor Planets. nearest star in USNO B1.0 has position end figures 42s769, 33"99, distance 7"0, magnitudes B2=17.94 R2=15.41 I=14.56
(I corrected some obvious typos)
I can confirm that when comparing DSS images in Aladin with my recent observation, there is indeed a new and quite red star visible. Started BVRI sequence on it until dawn.
Confirmed nova in Cygnus. Coordinates: 20:21:42.34 +31:03:29.8
It seems the CBAT already assigned the official name to this nova: Nova Cyg 2014 (see: CBET 3842.).
Clear skies,
Robert