[vsnet-alert 250] note on GX Cas

[tkato@kusastro.kyoto-u.ac.jp]

GX Cas

    Concerning the present outburst of GX Cas reported by J. Bortle
(vsnet-alert 249), I hope the following information posted to vsnet on
1994 Aug. 21 would be of any help in scheduling observations.

| Subject: GX Cas : a new SU UMa star
| 
| Dear vsnet colleages,
| 
|    CCD photometry of GX Cas at Ouda Station has revealed that this star
| belongs to a new member of SU UMa-type dwarf novae.  The outburst of
| this star has been notified from T. Vanmunster (VVS-Belgium).
| Clear superhumps were detected from tonight's observations.  The superhump
| period is something around 0.095 day(!), which is the longest one below
| the period gap, or even in the period gap.  The amplitude of superhumps
| was 0.28 mag in V.  The first superhump maximum occurred on Aug. 20.663 UT.
| The complete analysis is now under way, so the final result may differ
| somewhat from this.
| (...)
| 
| Regards,
| Taichi Kato

    Later observations have refined the superhump period of this dwarf nova
to be 0.093 day, which is clearly the longest among SU UMa stars except
TU Men.  The 1994 Aug. superoutburst came to an end on Aug. 27.

Regards,
Taichi Kato

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