[AAVSO-HEN] GRB 071003

arne arne at aavso.org
Wed Oct 3 12:45:40 EDT 2007


We've gotten a couple of reports from observers, giving
a magnitude for this optical transient of about R=14.5
several hours after the event.  If you look at the finding
chart from the KAIT group:
http://astro.berkeley.edu/~weidong/grb071003.finder.gif
you will see that the afterglow is very close to a "bright
foreground star" - this is the star near 14th magnitude.
The separation is only 6arcsec, so most amateurs would see
a blended object.  Be sure you are measuring the correct
object when reporting a detection.
Arne


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