[vsnet-chat 649] Re: RU Cam

["S. Kiyota" <skiyota@abr.affrc.go.jp>]

bas@bom.gov.au (Bruce Sumner) wrote：
>A liitle more on the variation of RU Cam. Results from the Hipparcos
>satellite on this star cover the period 1990-1993. The curve fitted 
>to the approx. 300 data points gives a variation of 8.597 - 8.738 Hp 
>(with Hp being close to V). This is a pulsation amplitude of 0.14. 
>Extreme values during the three year mission were 8.50 - 8.80 Hp. 
>The period was determined as 22.24 days.
>
>Bruce Sumner
>

I checked light curve (phase vs magnitude) of RU Cam in Hipparcos CD-ROM.

There are some fluctuation in light curve.

Some irregularity (or variation of variable range) may exist each cycles (?).


Seiichiro Kiyota
 
CBA, Tsukuba
VSOLJ

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