[vsnet-chat 4667] Re: [vsnet-campaign-dn 1026] True amplitude of WZ Sge?

[erik kuulkers <erikk@sron.nl>]

DEar Taichi Kato,

It may be because of the photographic observations taken during the 1913
outburst (see the composite light curves I made). There the maximum was
brighter than the 1946/1978 outbursts, which was composed of mainly visual
and photometric data. If understand correctly there's a difference of
about 0.5 magntiude between photgraphic 'V' and photometric/visual 'V'.
Also there's a spread in between visual measurements between different
observers of up to 0.5 magnitude.

Best regards,

Erik

On Sat, 28 Jul 2001, Taichi Kato wrote:

> True amplitude of WZ Sge?
> 
>    Looking at the current outburst, I am wondering about the reality of
> the 7.0 mag maximum documented in the literature.  This was the point
> which I had a discussion with Dr. Nogami, who made a compilation of
> dwarf nova parameters.  The maxima of the past two outbursts of WZ Sge have
> been around 8.0 or even fainter (averaging "early superhumps").  Could
> the 7.0 magnitude have been a result of different sensitivity of photographic
> plates and different comparison stars?
> 
> Regards,
> Taichi Kato
> 
>

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