V660 Her : Superoutburst in May

The SU UMa-type dwarf nova V660 Her experienced a relatively rare outburst as reported by P. A. Dubovsky in the end of May. The last reported outburst dates back to 2000 June (vsnet-campaign 931). J. Pietz detected superhumps during 1999 superoutburst (vsnet-campaign 936). M. Reszelski's observation on May 26 shows the object further brightened to 14.7mag (vsnet-campaign 935). The fading from the outburst was reported on May 30 (vsnet-campaign-dn 854, vsnet-campaign-dn 857), and then, the object re-brightened to 14.4mag on May 31 as reported by C. P. Jones. The short outburst should have been a precursor to superoutburst (vsnet-campaign 955). J. Pietz reported his past observations and suggests the supercycle of about 1 year and the cycle of normal outbursts of about 60 days (vsnet-campaign 960). The superoutburst continued until around June 10 (vsnet-campaign-dn 903).

Other related articles: vsnet-campaign-dn 870, 887, 897

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