------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 3017 2014 Aug 05 12.29UT 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 ------------------------------------------------------------------- PERSEIDS 2014 The following notes by Tony Markham appear on the website of 'The Astronomer' but are repeated in this circular for convenience. The predicted maximum is 2014 August 13, 00h UT. Despite not producing peak rates as high as those of the Geminids, the Perseid meteor shower remains the favourite for most observers. This is because, in addition to being rich in bright and trained meteors, it also occurs during summer in the northern hemisphere as opposed to the cold nights of December for the Geminids. Perseid activity can be seen from the ten days of July through to the third week of August. The highest observed rates on any given night are likely to be seen when the radiant is highest in the sky late in the night. In some years, when the Earth encounters dust trails from old returns of the parent comet, there can be more than one Perseid peak. However, there are no predictions for additional Perseid peaks in 2014. For UK-based observers, the best observed rates are likely to be seen late in the night of Aug 12-13 (Tue-Wed), although good rates should also be seen during Aug 11-12 and to a lesser extent during Aug 13-14. With New Moon occurring on July 26 and First Quarter not occurring until Aug 4, observing conditions will be good for the early Perseids in late July and in the early days of August. Unfortunately, with Full Moon occurring on Aug 10, moonlight conditions for Perseid maximum will be somewhat unfavourable. Indeed, on the night of maximum, the Moon will have already risen before twilight ends and will be present throughout any meteor watches. This will inevitably impact observed Perseid rates, although the shower's richness in bright meteors will mean that a good number of meteors are visible despite the moonlight. The impact of the moonlight can be reduced by observing with your back to the Moon The website also shows a chart with the position of the radiant. http://www.theastronomer.org/meteors/perseid_radiant.jpg SUPERNOVA 2014bn IN IC 1370 (F. CIABATTARI ET. AL.) 2014bn Jun 08.04 21 15 13.30 +02 11 22.4 17.6 14 "W 8 "S L. Tomasella: spectrum June 9 normal type-Ia a few days before B-band maximum. SUPERNOVA 2014bo IN SDSS J162745.84+414418.6 (KISO) 2014bo May 19.66 16 27 46.15 +41 44 23.7 19.3 3.4"E 5.0"N M. Tanaka: spectrum May 27 type-Ia a few days after maximum Guy M Hurst