[vsnet-chat 1614] Re: FASTT-2 variables

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

     Having blinked a fair number of Pluto Camera plates (33cm astrograph
that was used to discover Pluto, similar to what the Sonneberg/Heidelberg
groups used), I would concede that variables with full amplitudes under 
0.5 (at least) are not at all obvious.  Slight differences in seeing and
effective exposure can readily mimic variability.  Generally those guys
(well, Hoffmeister---what percentage of the known variables did he find?!)
didn't report things with amplitudes less than ~0.6 or 0.8 mag.  Pojmanski's
quick survey with a 135mm telephoto showed that even for stars brighter than
mag. 10-11, less than half were known in the areas he looked at.
     Sounds like FAST will be giving the Moscow GCVS group plenty of work
to do, especially if you'll be supplying lightcurves downstream.

\Brian

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