[vsnet-chat 4919] Re: [vsnet-alert 6879] DM Dra outburst (more info)

[Brian Skiff <bas@lowell.edu>]

     In re the star's appearance on survey plates, here are coordinates
from POSS-I and POSS-II plates via the three available digital scan sets:

source        RA    (2000)    Dec       epoch     mr    mb
USNO-A2.0  15 34 12.195  +59 48 32.73  1953.452  18.5  18.5
APM-North  15 34 12.134  +59 48 32.41  1953.454  18.3  19.1

GSC-2.2    15 34 12.212  +59 48 32.02  1992.326        19.5

If the magnitudes are to be believed, the star was somewhat above quiescence
at the time of both surveys.  For calculating proper-motion, I would tend to
trust the USNO-A2.0 position more than the APM position from the first epoch
plates.  The GSC-2.2 position is based evidently only on the J (blue) plate.

\Brian

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