CH UMa: Bright outburst in April

On April 14, P. A. Dubovsky reports the possible brightening of CH UMa at 12.4mag, a long-period SS Cyg-type dwarf nova. The last major outburst of CH UMa occurred in 1999 March (vsnet-alert 4623, vsnet-alert 4624, vsnet-alert 4625, vsnet-alert 4629, vsnet-alert 4631). As reported by several observers, it became a very bright outburst reached 10.1mag. The peak magnitude may surpass previously recorded maxima (vsnet-alert 4642). As reported by J. Gunther, CH UMa experienced another outburst at 12.9mag on December 17 (vsnet-campaign-dn 318).

General Information for This Object