PNV J17032620-3504140 2015 02 11.8367* 17 03 26.20 -35 04 14.0 8.2 U Sco 3 0
2015 02 11.837
Discovered by T. Kojima, Gunma-ken, Japan, using 150-mm f/2.8 lens + a digital camera, who writes nothing is visible on a frame taken on Feb. 10.827 UT using same patrol camera.
2015 02 11.837
Mag.= 8.1 +/- 0.4, position end figures 26s.11, 17".6 +/- 5" measued from Kojima's frame (Red plain), which image was put at http://www.oaa.gr.jp/~oaacs/image/PnovaSco.jpg.
2015 02 12.6791
Object visible in unfiltered DSLR image taken 16:18, 12 Feb 2015 UT by Rob Kaufman, Bright, Victoria, Australia. Mag 9.4 in green channel (~V). Image available at http://i727.photobucket.com/albums/ww271/Rob_Kau/PNVJ17032620-350414012Feb2015text.jpg~original
2015 02 12.826
Mag.= 9.5, position end figures 26s.15, 17".5 observed by T. Noguchi, Chiba-ken, Japan, using 0.23-m f/6.3 Schmidt Cassegrain + unfiltered CCD. An image at http://park8.wakwak.com/~ngc/images/PNVinSco_20150212.jpg.
2015 02 12.841
Mag.= 9.5, position end figures 26s.13, 18".0 observed by K. Yoshimoto, Yamaguchi, Japan, using 180-mm f/2.8 lens + a digital camera. An image at http://orange.zero.jp/k-yoshimoto/PNV-J17032620-3504140.jpg.
2015 02 13.7039
We performed some follow-up of this object remotely through a 0.50-m f/6.8 astrograph + CCD + f/4.5 focal reducer) of ITelescope network (MPC Code Q62 - Siding Spring). On our images taken on February 13.7, 2015 we can confirm the presence of an optical counterpart with R-CCD magnitude 8.6 at coordinates: R.A. = 17 03 26.19, Decl.= -35 04 18.1(equinox 2000.0; UCAC3 catalogue reference stars). According to VIZIER there is a 17.050 V-magnitude star at 0.368 arcseconds from the transient position (NOMAD-1 0549-0492872). An animation showing a comparison between our confirmation image and the archive POSS2/UKSTU plate (R Filter - 1991): http://bit.ly/1MjCWV3 - Our annotated confirmation image: http://bit.ly/1vrf9rz by Ernesto Guido & Nick Howes
2015 02 13.8609
I took low resolution spectrum of this PNV with 0.25m SCT telescope + Apogee Alta F407 CCD camera + Star Analyser SA-100 grating. H-alpha emission line was clearly seen on my image. More detailed spectroscopic observations will be encouraged. My image is available at http://meineko.sakura.ne.jp/ccd/PNV_J18142514-2554343-spe-20150213.jpg. Seiichiro Kiyota (Kamagaya, Japan)
2015 02 14.74580
Photometric: B= 10.6, V= 9.7, R= 9.3, position end figures 26s.17, 17".8, remotely using a 0.32-m f/9.3 Ritchey-Chretien + CCD + f/7.4 Focal Reducer at the iTelescopeNET Siding Spring, Australia. Observer T. Yusa, Osaki, Japan. BVR color composite image was posted at URL http://space.geocities.jp/yusastar77/supernova/PNinSco_150215.htm
2015 02 18.20224
This transient was observed on 2015 02 18.20224 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. 10-seconds exposures, unfiltered, show the source at mag. 8.1 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 26.16; 18.1 (J2000.0, mean residuals of 0.3" on both axes).
2015 02 18.20224
Please consider this revised report. --- This transient was observed on 2015 02 18.20224 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. 10-seconds exposures, unfiltered, show the source at mag. 9.5 (R mags for the reference stars from UCAC-4). The source was at only 10 degrees above the horizon at the imaging time. We also performed astrometry, getting the following end figures: 26.16; 18.1 (J2000.0, mean residuals of 0.4" on both axes).