------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2501 2008 Nov 23 19.30UT 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 ------------------------------------------------------------------- V358 LYRAE Jeremy Shears, England has reported a possible outburst of V358 Lyr on a single unfiltered CCD image from the Bradford Robotic Telescope obtained on Nov 22.917UT when the magnitude was measured as 16.26. At Jeremy's request Gary Poyner obtained 16.21C from the same exposure, both using the AAVSO chart. However, they note that the position is very slightly West of that marked on the AAVSO chart, placing the suspect object half way between the marked position for V358 and the 175 comp. In response to an appeal, Shawn Dvorak of Clermont, USA took an unfiltered image of the field and believes that V358 Lyr is in outburst. Using the 14.0 mag star from the AAVSO sequence he measured the star at: Nov 22.98 16.14CV Daisaku Nogami, VSNET Collaboration Team reports on VSNET: This outburst is the first one since the discovery of this object on photographic plates in 1965 by Hoffmeister (1967, Astron. Nach., 289, 205). You can see this plate image in Antipin et al. (2004, IBVS 5544, http://www.konkoly.hu/cgi-bin/IBVS?5544). The recurrent cycle of the outburst is perhaps 43 years, the longest amongst dwarf novae, exceeding that of WZ Sge, although the faintness at maxima of this object may have hindered observations. However the lack of detection of the quiescent counterpart in Arne Henden's deep image suggests that the outburst amplitude is large, and the outburst is rare. Charts are available through the AAVSO on-line chart-plotting tool, VSP at: http://www.aavso.org/observing/charts/vsp/ Guy M Hurst