Image caption:

A comparison of images of the field of GRB 990123, obtained at 
Palomar Observatory.  The image on the left is from the Palomar 
Observatory's digital sky survey (DPOSS).  The arrow points to the 
location of the burst.  The image on the right is the discovery 
image obtained by S. C. Odewahn and J. S. Bloom within a couple
of hours from the burst.  It shows the burst afterglow source at 
the location marked with the arrow.  Other objects are random 
foreground stars and galaxies.

Image credit:  The Caltech GRB Team / Palomar Observatory

Also available at:   http://astro.caltech.edu/~george/grb/pr.html

(Additional information and links available at the same website.)