[vsnet-alert 2932] Re: An outburst of GSC 2113-870?

[bas@lowell.Lowell.Edu (Brian Skiff)]

     It appears to be the case that BU Her = GSC 2113-0870, and that the
star is also IRAS 18483+2444.  The USNO-A2.0 b-r color is ~3.0, so fairly
red, confirming the general identity.
     Are you reporting that you actually observed an outburst by comparison
to your own previous observations?  If not, then I think you have been
caught by the very high near-infrared sensitivity of the CCD chip, which will
show cool stars such as BU Her as anomalously bright.  The GCVS magnitude
range is for blue light, so wil seem much fainter than an unfiltered CCD
magnitude.  I note that the red magnitude in USNO-A2.0 is 11.7, while the
blue magnitude is 14.6.

\Brian

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