[vsnet-chat 4307] Theta CrB comparison stars

["erhan eker" <vestaerhan@hotmail.com>]

>KAT and EKE -
>
>I see you both have been observing Theta CrB.  What comparison stars
>have you been using and what magnitudes for the?  I want to add it to
>my program of Be stars and want to use the same comparison stars that
>have been used in the past.
>
>Thanks!
>
>Cordially,
>Thom Gandet

Dear Thom
My comparison stars are for Theta CrB:
(Bright Star Catalog Mags)
HR 5842 HD140159  21 Iot  Ser mV: 4.52 b-v: 0.04
HR 5947 HD143107  13 Eps  CrB mV: 4.15 b-v: 1.23
HR 6324 HD153808  58 Eps  Her mV: 3.92 b-v:-0.01

But there is a 0.3 or 0.4 mag difference between my and Mr. Kato's 
observations.This may be because of comparison stars.

Thanks,

Erhan Eker






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