[vsnet-id 307] Re: DO Dra and YY Dra

[Taichi Kato <tkato>]

Re: DO Dra and YY Dra

Dear Prof. Samus,

    I have found an interesting thing.  After 50-years' precession, the
coordinates of RW UMa almost exactly (within a few arcmin) south to the
published position of YY Dra.  The R.A. is almost the same, and the declination
is 20 degrees different.  Furthermore, the published YY Dra epoch of eclipse
almost exactly corresponds to the E=-3544 eclipse of RW UMa.

    Would it have been possible that Tessevich reported the 1950 coordinate,
insted of the 1900 ones (for example), and had an error in the first digit
of declination?  Examination of other reported minima (which are not available
here) against the RW UMa ephemeris could easily test such a possibility.

Regards,
Taichi Kato

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