Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J00422184+4102035

PNV J00422184+4102035   2016 01 11.8236*  00 42 21.84 +41 02 03.5  18.0 U  242W 832S  M31       5 0

2016 01 11.8236

E. Conseil (France) reports the discovery of a probable nova in M31 located at 00h42m21.84s +41°02'03.5" using Slooh space robotic telescope T2 (17" Corrected Dall-Kirkham F/6.8 at Mt Teide, Canary islands). The transient is visible on 5 images taken between Jan 11.8236 and Jan 11.9479 at magnitude 18.0 U (UCAC4-V for ref), limiting magnitude 18.5. Discovery image visible at : https://c2.staticflickr.com/2/1624/24251057281_e25c9e2786_o.jpg Nothing was visible at that location on images taken around Jan 04.834

2016 01 13.0942

I took an confirmation image of this PNV in M31. Photometry result was V=17.78 with 0.61-m f/6.5 CDK astrograph + FLI PL09000 CCD at iTelescope.NET, Auberry, CA, USA, remotely. Seiichiro Kiyota (Kamagaya, Japan)

206 1 16.7253

U.Quadri, L.Strabla and R.Girelli from (IAU Station 565) Bassano Bresciano Observatory, Italy, in the course of the ISSP Italian Supernovae Search Project, confirm this transient on a series of 10 unfiltered CCD images of 60 sec exposure each, taked on 2016 01 16.7253 UT of their 0.25m F/4.5 robotic Newton telescope equipped with Starlight Xpress Trius-SX9 CCD camera. PNV is located at R.A.= 00 42 21.78 Dec.= +41 02 03.3 +/- 1" (equinox 2000.0) around 127" West and 843" South of the center of M31 galaxy. PNV image at http://www.osservatoriobassano.org/Images/transients/PNV_J00422184+4102035.png