RX J0640-24 : Superoutburst? in June

On January 26, R. Stubbings and B. Monard reported that the potential SU UMa-type dwarf nova RX J0640-24 entered in an outburst (12.4, 12.2mag). The peak brightness was comparable to those of short outbursts observed in the past (vsnet-campaign 716). The object rapidly faded as shown by reported magnitudes after January 27 (vsnet-campaign-dn 425, vsnet-campaign-dn 433). The object again experienced an outburst at 14.0mag on February 3 as reported by R. Stubbings (vsnet-campaign-dn 453). B. Monard detected another outburst on May 25 at magnitude 12.0 (vsnet-campaign-dn 834). After rapid fading, it again experienced a new outburst at 11.4mag on June 7 (vsnet-campaign-dn 889). The reported magnitudes until June 10 indicate gradual decline, which indicates it was a possible superoutburst (vsnet-campaign-dn 891).

Light Curve of This Object