[vsnet-outburst 7917] V426 Oph outburst

[Makoto Uemura]

V426 Oph outburst

  We recieved a report from M. Linnolt that V426 Oph is now 
in outburst:
OPHV426 20070730.349   11.9V LMK

  Just now, we have confirmed the outburst with TRISPEC/KANATA:
OPHV426 20070730.460   11.5V  Higashi-Hiroshima Observatory
OPHV426 20070730.460   10.7J  Higashi-Hiroshima Observatory
OPHV426 20070730.460   10.2Ks Higashi-Hiroshima Observatory

The object had been in a calm state (possibly a standstill, but 
showing a gradual fading) for the last three months without major outbursts, while its outburst cycle is usually 22~d (Hessman 1998).  

The current red color (V-J=0.8) is probably attributed to its 
large K3V secondary star. 

Regards,
Makoto Uemura
Hiroshima University
on behalf of the KANATA team