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[vsnet-chat 5449] Re: EK And

Dear Dr. Brian Skiff,

Thank you for your comment.

>      One wonders whether there has been some confusion with nearby
> UZ And, similarly-bright red star within 1 arcminute.  A look in VizieR
> suggests it is the only red star in the field.

Here are the data of these two variables.

UZ And  01h16m11s.16 +41o44'58".3  Mag(max):9.1  Mag(min):15.6  MagSystem:V  Type:M  Spectrum:M7e-M9e  Epoch:42663  Period:314.30

EK And  01h16m13s.50 +41o44'22".5  Mag(max):10.3  Mag(min):11.4  MagSystem:V  Type:SRA  Spectrum:M2  Epoch:19818  Period:185

MISAO's unfiltered CCD (KAF) observations are between 10.47 and 10.64
mag. It is only 0.8 mag brighter than visual observations, which also
supports that EK And is not a red variable.

So maybe the discoverer of EK And misidentified the star with UZ And
in some cases, and EK And is constant in fact.

But I do not know how the spectrum, epoch and period of EK And was
determined...

Best regards,

--
Seiichi Yoshida
comet@aerith.net
http://vsnet.aerith.net/

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