[vsnet-alert 1248] Outburst of V503 Cyg

[Taichi Kato <tkato>]

Outburst of V503 Cyg

  The interval was quite short for this object since the last superoutburst
(this star usually shows two normal outbursts during its ~90-day supercycle).
Similar early occurence of the first normal outburst was also observed
in 1996 September.  The number of normal outbursts is atypically small for
this short-supercycle length.  Such occasional frequent appearance of normal
outbursts may suggest the disk instability causing normal outbursts may be
somehow supressed in this system during its "normal" activity cycle.

  YYMMDD(UT)   mag  observer
  970925.923  <150  (E. Broens)
  970926.878  <150  (E. Broens)
  970927.250  <150  (G. Hanson)
  970928.267   145  (G. Hanson)
  970928.317   146  (G. Hanson)
  970929.258   148  (G. Hanson)

Regards,
Taichi Kato

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp