IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

TCP J17154683-3128303

TCP J17154683-3128303   2014 03 26.8487*  17 15 46.83 -31 28 30.3  10.1 U             Sco       N 0

2014 03 26.8487

Koichi Nishiyama, Kurume,Japan and Fujio Kabashima, Miyaki,Japan report a discovery of TCP (mag.= 10.1) in Sco on two 40-s unfiltered CCD frames taken around 2014 Mar. 26.84867 UT ( limiting magnitude=13.4 ), using a 105-mm f/4 camera lens (+SBIG STL6303E camera). We have confirmed immediately the appearance of our discovery this TCP on eight 1-s unfiltered CCD frames taken around 2014 Mar 26.86981 UT ( limiting magnitude=16.1 ), using a Meade 200R 0.40-m f/9.8 reflector (+SBIG STL1001E camera). (lens magnitude of referred catalogue Hipparcos, others reference catalogue GSC-ACT) Nothing is visible at this location on two past survey frames taken on 2014 Mar 22.819 UT(limiting mag.= 12.5) and 23.836 UT (limiting mag.= 12.9) nor on DSS, USNO-B1.0, We have checked in Minor Planets. nearest star in The Denis Data Bace has position end figures 46s861, 30"48, distance 0"44, magnitudes I=14.222.

2014 03 27.653

Reddened object at that position, mag 11.6 in green channel of unfiltered DSLR image (~V). Limiting magnitude 14. Rob Kaufman, Bright, Victoria, Australia. Link to image: http://i727.photobucket.com/albums/ww271/Rob_Kau/TCPJ17154683-312830327Mar2014textoverlay.jpg

2014 03 27.7091

I took confirmation images of this transient object with 25cm Schmidt Cassegrain telescope +Apogee Alta E47 CCD camera at Kamagaya, Japan. Photometric results were Rc=10.36, Ic=9.74 using TYC 7362-449-1 as a comparison. Due to bad sky condition, I could not get any images in V. My image is avaiable at http://meineko.sakura.ne.jp/ccd/TCP_J17154683-3128303.jpg Seiichiro Kiyota (Kamagaya, Japan)

2014 03 27.729

Mag.= 11.0, position end figures 46s.88, 30".4 (refer to UCAC4 catalog) observed by T. Noguchi, Katori, Chiba-ken, on a 30-s frames (limit mag.= 15.5) with 0.23-m f/6.3 Schmidt-Cassegrain + unfiltered CCD , who identified a star (mag.= 15.8, position end figures 46s.87, 30".3) on DSS (POSS2/UKSTU Red:1992.07.21). See an image posted at http://park8.wakwak.com/~ngc/images/TCPinSco.jpg.

2014 03 27.743

Mag.= 10.0 (Ic) observed by T. Kojima, Gunma-ken, Japan, on a frame using 150-mm lens + Canon digital camera with infrared filter, who writes a star on 2MASS17154687-3128303 (Jmag 11.255, Kmag 9.578) is located here.

2014 03 27.8

K. Ayani and S. Maeno, Bisei Astronomical Observatory (BAO), Ibara Okayama, Japan, obtained a low-resolution spectrogram (range 400-800 nm; resolution 0.5 nm atH-alpha) of this object with the BAO 1-m telescope. The spectrum shows broad emission lines of Balmer series, He I 501.6, 587.8, 706.5, and probably of O I 777.3. H-alpha line has FWHM of 7000 km/s and EW of about 90 nm. It indicates that this object is a nova in early phase. Our spectrum is posted at http://www.bao.city.ibara.okayama.jp/astro/2014/nova/TCP_J17154683-3128303_Mar27.png.

2014 03 30.70717

Photometry: B= 12.9, V= 11.7, R= 11.2, R.A.=17 15 46.87, Decl.=-31 28 30.4 (UCAC4), remotely using a 0.32-m f/9.0 Ritchey-Chretien + CCD + f/6.1 focal reducer at the iTelescope.Net Siding Spring Observatory, AU. Position was measured on an image composed from 4-frames which were taken by each B(60-s), V(30-s) and R(30-s) I(30-s), under the limiting magnitude = 17.5. Observer T. Yusa, Osaki, Japan. An image was posted at http://space.geocities.jp/yusastar77/supernova/PNinSco_140330.htm

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