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[vsnet-chat 6494] Re: 93 comp star for RS Oph



Re: [vsnet-chat 6488] 93 comp star for RS Oph

> I wish I could use it!
> Anyway, let me clarify that my concern regarding variability of HD 162215
> wasn't based on Arne's previous deeper data (I supposed it could be a
> saturated measure) but in a V measure in the GCPD:
> V= 9.68, B-V= 1.266.
> This is from Connelley M., and Sandage A., Photoelectric observations of RS
> Ophiuchi, 1978, PASP 70, 600.
> Arne's measure gained another meaning after I saw that measure....
> But....
> ASAS-3 data don't support variability. And now Arne has obtained a
> consistent result with Tycho-2 and ASAS-3, so... I think it could be used as
> a comparison star as Mike suggested.
> 
> Of course, now the charts are issued, an eclipse or something will happen ;-))
> BTW it is a single-lined spectroscopic binary (Latham, 2002).

   Is this K0 star a dwarf or a giant?  I noticed that there is a possible
Einstein EMSS2 detection located close to this star.

   175014.4 -064812 (2000.0) 2.32sigma

   By taking the typical uncertainties of Einstein detections in this
field, this detection may correspond to this star itself.  Could someone
enlighten us more?

Regards,
Taichi Kato


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