------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2856 2012 Sep 21 16.36UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- BLAZAR CTA102 (= 4C 11.69 PKS 2230-11) V. Larionov et. al., St Petersburg University and others report on The Astronomer's Telegram 4397 that their photometric monitoring at the 70-cm AZT-8 (Ukraine) and 1.8-m Perkins of Lowell shows high activity in CTA102. (This object may be better known to observers as PKS 2230-11 which is located at: RA 22h 32m 36.41s DEC +11 43' 50.9" (2000) and for which a chart is available at: http://www.chara.gsu.edu/PEGA/charts/?2230.114 :editor). The authors add after several years of moderate activity the blazar increased its brightness up to ~16.2 in 2012 (see http://lacerta.astro.spbu.ru/lc/cta102R.png). Their recent observations show that on 2012 Sept 15 the source was R=16.02, whereas on Sept 18 its brightness reached R=14.67. Analysis of publicly available data of the LAT onboard of the Fermi gamma-observatory shows a sharp increase in gamma-ray flux along with the optical brightening. Since the optical flux seems to be unprecedented for this object, observations at multi-frequencies are encouraged. SUPERNOVA 2012ef (POPVOROTNIY) 2012ef Aug 18.02 23 50 19.25 +16 37 56.2 18.1 7.3"E 2.4"N The discovery and reference images are posted at the following: http://master.sai.msu.ru/static/OT/235019.25163756.2_1.png J. Sollerman, Stockholm University: spectrum Aug 21 type-Ia then about one week past maximum. SUPERNOVA 2012eh IN IC 1706 (ITALIAN SUPERNOVA SEARCH PROJECT) 2012eh Aug 20.07 01 27 31.45 +14 49 05.8 18.4 5 "E 5 "S J. Sollerman: spectrum Aug 21 young type-II supernova. Guy M Hurst