------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2649 2010 Jun 04 13.53UT 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 ------------------------------------------------------------------- FIREBALL ON JUPITER Anthony Wesley, Australia has reported that he has a video recording of a very brief bright flash on Jupiter which apparently occurred on 2010 June 3 at 20h 31mUT. In 2009 Anthony reported a full impact on Jupiter with scar seen visually for which the picture of 2009 July 19 was published on the front cover of 'The Astronomer' Vol 46 No 544 [2009]. On the current event he has not so far reported any planetary scar but this may still develop and further reports would be welcomed. The current event was also recorded by Christopher Go of the Philippines. On an announcement on Spaceweather.com Anthony has reported that the location of the flash was Jovian latitutde -16.1deg and central meridian longitudes: CM1 300deg; CM2 33.8deg; CM3 210.4deg. SUPERNOVA PTF10icb Peter Nugent of Lawrence Berkeley National Laboratory et. al., reported on Astronomer's Telegram 2657 issued on June 3 that three supernovae had been recorded by the Palomar Transient Factory. Name RA DEC Discovery date Mag R PTF10hdv 12:07:45.39 +41:29:27.8 May 14.3 19.6 PTF10hmv 12:11:33.28 +47:16:29.6 May 20.4 19.5 PTF10icb 12:54:49.22 +58:52:54.8 May 30.3 17.4 A spectrum of PTF10icb was taken by D.A. Howell on Gemini North on June 2 UT which is believed to show it is of type Ia. An independent discovery of a supernova in MCG +10-19-001 was reported to us by Tom Boles in an e-mail of June 4 and found during searches for the UK Nova/Supernova Patrol. The position quoted by Tom was: RA 12h 54m 49.24s DEC +58 52' 55.2" (2000), which is approximately 4".3 west and 1".2 south of the centre of the host galaxy and suggests that Tom's object is the same as PTF10icb but this was not known during his discovery nor announced on CBETs. Tom adds that nothing is present at this position on his images from 2009 Feb 09 and 2010 Mar 04 (limiting mag 19.5) nor on Digitised Sky Survey Plates from 1994-01-11 (limiting red mag 20.5), and 1996-02-13 (limiting blue mag 21.0). Congratulations to Tom on the discovery of his 131st supernova. Guy M Hurst