[vsnet-alert 1178] possible superoutburst of V503 Cyg

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

  According to AAVSO News Flash No. 195, the SU UMa-type dwarf nova V503 Cyg
may be entering a new supercycle.  The outburst has been possibly caught
on its rise.  Time-resolved photometric observations might be interesting
since V503 Cyg may be sometimes regarded as an intermediate object between
usual SU UMa-type dwarf novae and ER UMa (RZ LMi) stars, which have been
known to show large-amplitude superhumps at the very earliest stage of
superoutbursts.

  Observations:

  1997 Sep. 04.924  <15.6   G. Poyner
            05.0688  15.6   J. Bortle  (AAVSO News Flash No. 195)
            05.2299  14.0   T. Burrows (AAVSO News Flash No. 195)
            05.258   14.40V R. Zissell (AAVSO News Flash No. 195)

Regards,
Taichi Kato

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