[vsnet-chat 2757] Re: On V1830 Sgr sequence (Pearce)

[Taichi Kato <tkato>]

>      Kato-san might consider recalibrating the vsnet V1830 Sgr chart using an
> adjustment found from Henden's photometry for V4444 Sgr, which is about a
> degree due west.  How do these compare to 'Kato V' derived from USNO-A1.0?
> Some of the brighter stars in the V1830 field might also be in Tycho-2, which
> will give a hint as to whether the RASNZ chart has a zero-point problem.

    The star in question has already published photometry.

181350.7 -274200 (2000.0) UBV_V1830Sgr 12.56 0.01 -0.78 - - - - N=1 Nm=1 -

Regards,
Taichi Kato

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