IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J20372558+6607115

PSN J20372558+6607115   2015 03 23.7875*  20 37 25.58 +66 07 11.5  15.5 U   69E  51N  N6951     2 0

2015 03 23.7875

Discoverd by K. Shima, Fuchu, Tokyo, Japan, on an unfiltered CCD frame using 0.45-m f/12 reflector + CCD (FLI ML-8300) + f/4.6 focal reducer at Fujimi-machi, Nagano, Japan, under the limiting magnitude= 18.6. PSN was confirmed on the following 20 frames taken after the discovery duaring 60 minutes. He notes that nothing is visible at this location on his past frames (limit mag.= 18.0) taken on 2015 January 12.447 UT, and on an image from the Digitized Sky Survey(I,R,B band). See an image at http://space.geocities.jp/yusastar77/supernova/PSNinN6951_150324.htm

2015 03 24.1246

This new transient object was imaged using a C14 +SBIG ST9XE unfiltered 10x120s exposures. RA 20 37 25.58 Dec+66 07 11.6 69 ref stars UCAC-4 0.08" O.08" Mag=15.9 CR Denis Buczynski Tarbatness Observatory MPC Code I81 Checked against DSS1 and transient confirmed as a new object.

2015 03 24.5403

I took confirmation images of this PSN with 0.61-m f/6.5 CDK astrograph + FLI PL09000 CCD camera at Sierra Remote Observatory site of iTelescope.NET (Auberry, California. USA) remotely. Photometric results were V=16.26 and Ic=15.89. My image is available at http://meineko.sakura.ne.jp/ccd/PSN_J20372558+6607115.jpg. Seiichiro Kiyota (Kamagaya, Japan)

2015 03 24.534

Mag.= 16.4, position end figures 25s.57, 11".6 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/PSNinNGC6951.jpg.

2015 03 26.4809

Mag B=16.8, V=16.4, R=16.3, position end figures 25s.57, 11".6 using 0.43-m f/6.8 astrograph + CCD + f/4.5 focal reducer at Mayhill, USA. OBS T. Yusa, Osaki, Japan. See image at http://space.geocities.jp/yusastar77/supernova/PSNinN6951_150324.htm

2015 03 31.05648

This transient was observed on 2015 03 31.05648 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. 180-seconds exposures, unfiltered, show the source at mag. 16.7 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 25.58; 11.6 (J2000.0, mean residuals of 0.1" on both axes).

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