Following the posting on the Central Bureau's Transient Object Confirmation Page about a possible Nova in Cep (TOCP Designation: PNV J23080471+6046521) we performed some follow-up of this object remotely through the 0.43-m f/6.8 reflector + CCD of ITelescope network (MPC Code I89 - Nerpio, Spain).
On our images taken on February 02.8, 2013 we can confirm the presence of an optical counterpart with unfiltered CCD magnitude 9.8 at coordinates:
R.A. = 23 08 04.70, Decl.= +60 46 52.0
(equinox 2000.0; USNO-B1.0 catalogue reference stars).
R.A. = 23 08 04.70, Decl.= +60 46 52.0
(equinox 2000.0; USNO-B1.0 catalogue reference stars).
Our annotated confirmation image (click on it for a bigger version):
An animation showing a comparison between our confirmation image and the archive POSS2/UKSTU plate (R Filter - 1991). Click on the thumbnail for a bigger version:
Kazuyoshi Imamura (Okayama Univ. of Sci. team, JAPAN) reports on vsnet-alert mailing list that they "succeeded in obtaining a low-resolution spectrum (R~400) of the PNV J23080471+6046521 (in Cep) on February 2.526 UT at the OUS (Okayama Univ. of Sci.) observatory......From our result, this object is thought to be a classical nova (Fe II class)"
Credit: K. Imamura (Okayama Univ. of Sci. team, JAPAN) |
UPDATE - February 03, 2013
According to Cbet No. 3397, PNV J23080471+6046521 is now NOVA CEPHEI 2013. This nova has been discovered by Koichi Nishiyama and Fujio Kabashima (Japan) on two 40-s unfiltered CCD frames (limiting magnitude 13.5) taken around Feb. 2.4119 UT using a 105-mm f/4 camera lens (+ SBIG STL6303E camera). Spectra confirming the nature of the nova have been obtained by K. Imamura (see above) and M. Fujii (Bisei Astronomical Observatory).
According to Cbet No. 3397, PNV J23080471+6046521 is now NOVA CEPHEI 2013. This nova has been discovered by Koichi Nishiyama and Fujio Kabashima (Japan) on two 40-s unfiltered CCD frames (limiting magnitude 13.5) taken around Feb. 2.4119 UT using a 105-mm f/4 camera lens (+ SBIG STL6303E camera). Spectra confirming the nature of the nova have been obtained by K. Imamura (see above) and M. Fujii (Bisei Astronomical Observatory).
Ernesto Guido & Nick Howes
1 comment:
It's such an interesting astronomy news. The animated images are very wonderful.
Post a Comment