... the CXC[*]
http://cxc.harvard.edu/ciao/threads/apply_acisabs/index.html
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... $^{\prime \prime }$[*]
See the memo on astrometry problems at http://cxc.harvard.edu/mta/ASPECT/improve_astrometry.html
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Copyright ESO 2003