Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

TCP J06112800+4041087

TCP J06112800+4041087   2011 11 18.073 *  06 11 28.00 +40 41 08.7  15.8 U             Aur       9 1

2011 11 18.073

B. Dintinjana and H. Mikuz report the discovery of a new variable object (mag 15.8) by J. Vales on four unfiltered CCD images (bandpass roughly equivalent to the R band) taken on 2011 Nov. 18.051-18.095 UT with the 60-cm f/3.3 Cichocki reflector in the course of the Comet and Asteroid Search Program (PIKA) at Crni Vrh Observatory. The new object is located at R.A. = 06h11m28s.00, Decl. = +40o41'08".7 (equinox 2000.0). Image http://www.observatorij.org/vstars/TCP20111118/TCP20111118.jpg Nothing is visible at this location on archival PIKA images, obtained on 6 nights between 2006 Sep. 30 and 2009 Feb. 28 with limiting magnitudes about 19.0-19.5. Also, nothing is visible at this position on several Digitized Sky Survey red and blue images from the Palomar Sky Survey.

2011 11 19.079

Follow-up photometry by B. Dintinjana and H. Mikuz using the same telescope: R=16.09 +/- 0.02

2011 11 19.3640

Object detected at position end figures 27.93, 09.0 (UCAC3). Magnitude 16.7 U +/- 0.1. Limiting magnitude 18.0 . Average of 10 x 60-sec images. Nothing visible at this location on DSS. Observer: R. A. Koff, Bennett, Colorado USA (H09). Image posted at: http://antelopehillsobservatory.org/SNpictures/TCPJ06112800+4041087final.jpg

2011 11 19.97

D. Denisenko (IKI, Moscow), V. Gerke and S. Korotkiy (Ka-Dar observatory, Russia) report on the results of observations with the 40-cm f/8 Djigit telescope + STL-11000M CCD of Ka-Dar Observatory's TAU Station (Nizhniy Arkhyz, Karachay-Cherkessia, Russia). Forty 120-sec unfiltered exposures were obtained between 2011 Nov. 19.93 and Nov. 20.01 UT. Position (average of 8 measurements): 06 11 28.00 +40 41 08.8. Light curve is showing variations (orbital hump) with 0.12m amplitude (16.46-16.58m) and a very preliminary 0.056d period. Object is not visible on six DSS plates and eight Palomar-NEAT images from 2001 Dec. 20 and 2002 Jan. 05, as well as on the combination of them (limiting mag about 22.5). Comparison of TAU/Ka-Dar and NEAT images is uploaded at this URL: http://pics.livejournal.com/bigdenru/pic/000ay77f

2011 11 22.053

Further photometry by B. Dintinjana and S. Maticic, using the same telescope: R=17.3 +/-0.1

2011 11 24.84

Follow-up unfiltered photometry from Ka-Dar observatory's TAU station (observers V. Gerke and S. Korotkiy, measurer D. Denisenko) using the same comparison star USNO-A2.0 1275-06016230 with R=16.1: 2011 Nov. 20.848, 16.79; Nov. 24.840, 17.61

2011 11 28.041

Further photometry by B. Dintinjana and B. Mikuz, using the same telescope: R=17.9 +/-0.3

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