Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J19023335+0315190

PNV J19023335+0315190   2013 10 28.4571*  19 02 33.35 +03 15 19.0  13.8 U             Aql       I 0

2013 10 28.782

This transient was observed on 2013 10 28.782 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 17" robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. Unfiltered images show a faint source at mag. 13.5 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 33.38s 18.9" (J2000.0, mean residualsoof 0.2" on both axes).

2013 10 28.457

Image : http://www.k-itagaki.jp/images/aql-pnv.jpg

2013 10 28.294

This transient was observed on 2013 08 28.294 by Gianluca Masi, Patrick Schmeer and Francesca Nocentini, remotely using the 14" robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. The target was at 30 deg above the western horizon. We took some low res spectra, using a 100 lines/mm grating with a dispersion of about 34 Angstrom/pixel and we see an emission at H-alpha wavelength.

2013 10 28.794

Sorry for a typo in the text, corrected messagge follows- This transient was observed on 2013 10 28.794 by Gianluca Masi, Patrick Schmeer and Francesca Nocentini, remotely using the 14" robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. The target was at 30 deg above the western horizon. We took some low res spectra, using a 100 lines/mm grating with a dispersion of about 34.7 Angstroms/pixel and we see an emission at H-alpha wavelength.

2013 10 29.1109

I took images of this PSN with 0.43m Astrogrph + FLI-PL6303E CCD camera remotely at Mayhill, NM, USA. Photometry results were V=15.34, Rc=13.77, Ic=11.98. Uncertainty of photometric results might be large as I could not get good sequences for comparison stars. Seiichiro Kiyota (Kamagaya, Japan)

2013 10/60 29.47

G. Masi, P. Schmeer and F. Nocentini inspected POSS2, red digitized plates at the OT position. There are a few, very close 15-16 mag. stars there. Looking at the OT position provided by our astrometry, we see a faint object on POSS2 red (29 July 1987), not easy to judge, as involved with brigther stars. We can guess a mag of 20.0/20.5 for it.

2013 10 29.722

This transient was observed again on 2013 10 29.722 by Gianluca Masi, Patrick Schmeer and Francesca Nocentini, remotely using the 14" robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. We took ten, 300-seconds exposures low res spectra under good skies conditions, using a 100 lines/mm grating with a dispersion of about 34.7 angstroms/pixel. By averaging them, we clearly see emission at H-alpha wavelength (6563 angstroms), much stronger than yesterday night. Also, we see emission at OI (8446 angstroms). The plot is available at: http://www.virtualtelescope.eu/?p=6530

2013 10 29.4401

Observation report of a PSN in Aql mag=13.1 ,on seven 3-s unfiltered CCD frames taken around 2013 Oct. 29.4401 UT, ( limiting magnitude = 17.5 ) using a Meade 200R 0.40-m f/9.8 reflector (+SBIG STL1001E camera). D62

2013 10 30.723

CCD Photometry from Hankasalmi Observatory, Finland using 40cm RC telescope and SBIG STL-1001E CCD: I=11.304 +/- 0.072, Rc=13.565 +/- 0.066, V=15.559 +/- 0.026, B=18.119 +/- 0.222. The AAVSO sequence was used for magnitude reference. Astrometry: 19:02:33.44 +03:15:21.1 (J2000.0). Observer: A. Oksanen.

2013 10 30.723

Revised astrometry: 19 02 33.38 +03 15 19.1 (J2000.0), USNO B1.0 reference (average residual 0.3 arcsec). Observer: A. Oksanen, Hankasalmi Observatory, Finland.

2013 11 05.703

This transient was observed again on 2013 11 05.703 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 17" robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. Unfiltered images show a faint source at mag. 14.1 (R mags for the reference stars from UCAC-4). On 2013 11 06.723 the same observers took six, 300-seconds exposures low res spectra, remotely using the 14" robotic unit part of the Virtual Telescope Project facility in Ceccano and using a 100 lines/mm grating with a dispersion of about 34.7 angstroms/pixel. While seeing was not good (3"), by averaging them we clearly see strong emission at H-alpha wavelength (6563 angstroms). Also, we see a very strong emission at OI (8446 angstroms).