IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PNV J03093063+2638031

PNV J03093063+2638031   2014 10 29.630 *  03 09 30.63 +26 38 03.1  11.2 U             Ari       0 0

2014 10 29.630

Discovered by S. Ueda, Hokkaido, Japan, on three 30-s frames (limiting magnitude = 12.9) using 0.25-m f/3.4 reflector + Nikon digital camera, who confirmed the star has no motion on three frames taken on 2014 Oct. 29.815 and then star was mag.= 11.0. Nothing is visible at this location on his recent frames (limiting mag.= 13) taken on 2014 Oct. 22 and 27 UT using same telescope.

2014 10 30.2816

I took confirmation image of this PNV with 0.25m (f/3.4) Reflector + SBIG ST-10XME CCD at Mayhill, NM, USA of iTelescope.NET, remotely. Photometric results were B=10.83, V=11.02 and Ic=10.92. Position end figures were 29.86 and 04.49 in R.A. and Dec. My image is avalable at http://meineko.sakura.ne.jp/ccd/PNV_J03093063+2638031.jpg Seiichiro Kiyota (Kamagaya, Japan)

2014 10 30.471

Mag.= 11.2, position end figures 29s.77, 04".3 observed by T. Noguchi, Chiba-ken, Japan, using 0.23-m f/6.3 Schmidt Cassegrain + unfiltered CCD, who found a star (mag.= 16.7) located on almost same position on DSS (POSS2/UKSTU Red; 1989 Dec. 23). See an image at http://park8.wakwak.com/~ngc/images/PNVinAri.jpg.

2014 10 30.81

G. Masi and P. Catalano performed low-res spectroscopy of this transient, remotely using the 14" robotic unit part of the Virtual Telescope in Italy. 300-seconds exposures were taken on 30.8125 Oct. UT, using a 100 lines/mm grating, with a dispersion of 34.5 angstroms/pixel: we do NOT see evidence of strong H-alpha emission. With the same telescope, we also performed time-resolved photometry of the source, found at mag 11.1 (R, unfiltered), seeing a 0.05 large modulation (early superhumps?).

2014 10 30.9157

This transient was observed on 2014 10 30.91575 by M.Caimmi - C92 Valdicerro Observatory - Loreto (AN) Italy using 0.24-m f/6.5 SCT - CCD Atik 314L. Stack of 15 unfiltered frames of 15 sec exposure, show the source at 11.0 mag. End figures for astrometry were AR. 29.77s DEC. 04.6" position was measured from reference stars USNO-B1.0 catalogue. Image of this observation is available http://www.oav.name/public/PNV_J03093063+2638031_20141030.jpg

2014 10 30.808

P. Berardi (ARAS Spectroscopy Group) obtained a low-resolution optical spectrum of this transient using a 0.23-m Schmidt-Cassegrain telescope, Lhires III spectrograph configured for low-resolution (400-720 nm, res. 1 nm). Blue continuum, narrow H-alpha line profile and broad absorptions for the other members of Balmer lines suggest that the object is a dwarf nova in outburst. Spectrum of Oct, 30.808: http://quasar.teoth.it/html/spectra/PNVJ03093063+2638031.png

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