Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J17575253+4212433

PSN J17575253+4212433   2014 07 06.8597*  17 57 52.53 +42 12 43.3  18.7 U    6E  12S  Anon      9 0

2014 07 06.860

B. Mikuz (Crni Vrh Observatory) reports the discovery of a possible supernova (mag 18.7) on four unfiltered CCD images (bandpass roughly equivalent to the R band), taken on 2014 Jul. 6.860-6.900 UT with the 60-cm f/3.3 Cichocki reflector in the course of the Comet and Asteroid Search Program (PIKA). The object is at R.A. = 17h57m52s.53, Decl. = +42d12'43".3 (equinox J2000), which is 6" E and 12" S from the center of uncatalogued galaxy. Image http://http://www.observatorij.org/vstars/PSN20140706/PSN20140706.jpg Nothing is visible at this location on archival PIKA images, obtained on 6 nights between 2008 May 27 and 2013 Aug. 22 with limiting magnitudes about 19.0-19.3. Also nothing is visible at this position on several Digitized Sky Survey red and blue images from the Palomar Sky Survey.

2014 07 07.8251

This transient was observed on 2014 07 07.8251 by G. Masi, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility, at Bellatrix Astronomical Observatory in Ceccano, Italy. 120-seconds exposures, unfiltered, show the source at mag. 18.6 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 52.58; 43.6 (J2000.0, mean residuals of 0.2" on both axes).

2014 07 08.223

This possible supernova in PGC 2194496 was detected with 9 x 10 min images using a clear filter Photometry: Mag 18.40 +/- 0.04 C (V for ref, USNOA2) Astrometry: RA 17 57 52.56 Dec +42 12 43.8 These data were collected remotely by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia. Link to image and further information: https://www.flickr.com/photos/43846774@N02/14479287547/

2014 07 17.864

Additional R filter photometry, obtained by J. Vales and B. Mikuz with 60 cm, f/3.3 Cichocki telescope, using R2 magnitudes from USNO-B1 catalogue: R=17.4 +/- 0.2

2014 07 18.845

Further photometry by S. Maticic and B. Mikuz, using the same telescope: R=17.5 +/-0.2

2014 08 01.867

Further photometry by H. Mikuz and B. Mikuz, using the same telescope and reference stars: R=17.7 +/-0.2

2014 08 17.816

Further photometry obtained on 5 × 3 min images taken by B. Mikuz, using the same telescope and reference stars: R=18.1 +/-0.2

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