Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J03095731+1912492

PSN J03095731+1912492   2013 12 04.705 *  03 09 57.31 +19 12 49.2  16.7 U   17W  20N  I1890     0 0


2013 12 04.705

Discovered by Kunihiro Shima, Fuchu, Tokyo, Japan on 29 unfiltered CCD frames using 0.45-m f/12 reflector with 0.3x focal reducer and FLI ML-8300 CCD camera (exposure time was 20 sec or 60sec, each frame) at Fujimi-machi, Nagano, Japan. He checked a DSS image and nothing is visible at this position.



2013 12 05.403

Mag.= 17.6, position end figures 57s.31, 48".9 observed by T. Noguchi, Chiba-ken, Japan, from eight stacked 30-s frames (limit mag.= 18.5) using 0.23-m f/6.3 Schmidt-Cassegrain + unfiltered CCD. See a posted image at http://park8.wakwak.com/~ngc/images/PSNinIC1890.jpg.



2013 12 05.451

Mag=17.9,image http://www.k-itagaki.jp/images/ic1890.jpg



2013 12 04.705

Discovery magnitude is 17.2U, not 16.7 U after re-measurement of discovery image. Sorry.



2013 12 05.4310

Photometry results are V=17.76 and I_c=17.49 with 0.5m astrograph + FLI PL-9000 CCD camera at Siding Spring Observatory, Australia (T31, iTelescope.NET), remotely. Seiichiro Kiyota (Kamagaya, Japan)



2013 12 05.868

This transient was observed on 2013 12 05.868 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. 120-seconds exposures, unfiltered, show the source at mag. 17.5 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 57.28s; 48.1" (J2000.0, mean residuals of 0.2" on both axes).



2013 12 05.9257

Mag.: 18.3(V) R.A.: 03 09 57.31; Decl.: +19 12 47.1 (2000.0). Reference: PPMXL Observer: Massimiliano Martignoni - Observatory: Stazione Astronomica Betelgeuse (B75), Magnago, Italy Telescope: Schmidt-Cassegrain 0.25m-f/10.0 - CCD: KAF0261E



2013 12 07.94257

This object was observed by F. Luppi, M. Calabrò, A. Medda and A. Piovanelli from Schiaparelli Observatory, Varese, Italy. In a stack of images totalling 7 minutes of unfiltered exposure time, the object has position end figures 57s.28, 48".2 and magnitude 17.1. Image posted at URL http://www.astrogeo.va.it/pub/TOCP/PSN_I1890.jpg


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