Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J03333599-3607377

PSN J03333599-3607377   2012 10 27.05  *  03 33 35.99 -36 07 37.7  15.6 R    2W  52N  NGC1365   2 0

2012 10 27.05

A. Klotz on behalf of the TAROT Collaboration reports the discovery of an apparent supernova (mag about 15.6 +/- 0.4) on 2012 Oct. 27.05 using public images of the 0.25m robotic telescope TAROT La Silla observatory, Chile. SN is located at about R.A. = 03h33m36.1s, Decl. = -36o07'34" (equinox J2000.0), which is 3" W and 52" N from the nucleus of NGC 1365. The supernova does not appear in an image taken 2012 Oct. 24.05 (limiting mag 15.8) neither in an image taken 2012 Oct. 19.37 (limiting mag 19.2). The candidate appears in the two 30s unfiltered frames of NGC 1365 taken sequentially. It remains a doubt on the reality of the object because it can be a CCD artifact. However, this kind of artifact is not usual in the TAROT images. Additional informations http://cador.obs-hp.fr/sn_tarot/PSN_J03333599-3607377

2012 10 28.34

I can confirm PSN J03333599-3607377 in NGC1365 is easily visible in multiple 50 second images taken at Parkdale Observatory New Zealand. Taken by Stuart Parker part of BOSS-Backyard Observatory Supernova search. Magnitude and position to follow shortly.

2012 10 27.125

Emmanuel Conseil (amateur of astronomy - France) reports the confirmation of the presence of a new stellar object at the position of the PSN J03333599-3607377 described in the TOCP page. Images were obtained with the 0.5m Slooh Space Camera robotic telescope (Canaria island). Magnitude 16.0U at the date 2012 Oct. 27.125 UT. Updated informations http://cador.obs-hp.fr/sn_tarot/PSN_J03333599-3607377

2012 10 28.36

Following my previous post confirming the PSN J03333599-3607377 in NGC1365 from Parkdale Observatory New Zealand. Magnitude 15.10 +/- .20 with no filter using a ST10 and C14 @ f/6.3 Link to image: http://www.bosssupernova.com/confirmingimages.htm Position:03h.33.36.22 -36.07.35.64 Measured in poor seeing conditions

2012 10 30.22

TAROT observations of the supernova in NGC 1365 are continuing. At the date 2012 Oct. 29.22 magnitudes are 14.69B, 14.27V, 14.02R. At the date 2012 Oct. 30.22 magnitudes are 13.96B, 13.78V, 13.64R. These magnitudes are calibrated using 16 Loneos stars in the nearby field of NGC 1316.

2012 10 24.02

Jonathan Normand (amateur of astronomy - France) reports a limiting magnitude from a stack of images taken with the 60 cm telescope at the observatoire des Makes, Reunion Island (Pacific Ocean). At the date 2012 Oct 24.02 the supernova was fainter than magnitude 19.3 in the R band.