Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PNV J17260708-2551454

PNV J17260708-2551454   2012 03 25.789 *  17 26 07.08 -25 51 45.4  12.1 U             Oph       9 1

2012 03 25.789

Discovered by H. Nishimura, Shizuoka-ken, Japan, on three frames using Canon 200-mm f/3.2 lens + Canon EOS 5D Digital Camera under the limiting magnitude= 13.5. He has confirmed this star (mag.= 12.3) on 2012 March 26.796 UT.

2012 03 26.752

Comfirmed the object at mag 12.7 on the image of limitting mag about 13.0 with STL-6303E and 100mm lens. Akira Takao in Kitakyushu, Japan.

2012 03 27.4208

This possible nova was seen with 1 min images taken by 25cm Reflector + ST-10XME CCD (iTelescopr.NET T-4) at Mayhill, USA. Photometry: 13.27B, 12.37V, 11.88Rc, 11.11Ic. Position end figures are R.A. 07.02, Dec. 42.65. Image is available at http://meineko.sakura.ne.jp/ccd/PNV_J17260708-2551454-120327.jpg (Seiichiro Kiyota, Tsukuba, Japan)

2012 03 27.45902

Mag.=12.6, R.A.=17 26 07.02 Decl=-25 51 42.5 (USNO-B1.0), remotely using a 0.25-m f/3.4 hyperbolic astrograph + unfiltered CCD (SBIG ST-10XME) at the RAS Observatory near Mayhill, NM, U.S.A.. Position and magnitude were measured on an image composed from 3-frames which were taken by each 60-seconds exposure under the limiting magnitude =18.5. Observer T. Yusa, Osaki, Japan. Link to my image: http://space.geocities.jp/yusastar77/supernova/PNinOph_120327.htm

2012 03 27.4851

Following the posting on the Central Bureau's Transient Object Confirmation Page about a possible Nova in Oph (TOCP Designation: PNV J17260708-2551454) we performed some follow-up of this object remotely through the 0.10-m f/5 reflector + CCD from MPC code H06 (Mayhill station, NM). On our images taken on March 27.5, 2012 we can confirm the presence of an optical counterpart with unfiltered CCD magnitude 10.9 at coordinates: R.A. = 17 26 07.02, Decl.= -25 51 42.1 (equinox 2000.0; USNO-B1.0 catalogue reference stars). An animation showing a comparison between our confirmation image and the archive POSS2/UKSTU plate (R Filter - 1997): http://bit.ly/GUTN2i - Our confirmation image: http://bit.ly/HcAy0f - by Ernesto Guido, Giovanni Sostero & Nick Howes

2012 03 25.758

Mag.= 12.2 observed by T. Kojima, Gunma-ken, Japan, using Canon EOS 40D + 150-mm f/2.8 lens. Also Kojima reports 2012 March 20.784 UT, [13.0, 24.785, 12.2.

2012 03 27.74

We obtained low-resolution (R about 550) spectra of this object using 1.3m Araki telescope at the Koyama Astronomical Observatory (KAO) on Mar. 27.74 UT. Our spectra show prominent emission lines in H_alpha with a P-Cygni profiles on a highly reddened continuum. H_beta, Fe II and O I (777.4 nm) are also shown in our spectra. The fwhm of the H_alpha is about 600 km/s. These features suggest that the object is an Fe II-type classical nova. Akira Arai and Mizuki Isogai, KAO, Kyoto Sangyo Univ. Our spectra is shown in http://www.cc.kyoto-su.ac.jp/~kao/blog/index.php/view/165 .

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