As a newbie I looked at the extresfolder and the errormessage: url=http://vizier.u-strasbg.fr/viz-bin/VizieR?-c=$$$$&-c.geom=r&-c.r=$&-c.eq=J2000&-c.u=arcmin&-oc.form=dec&-sort=_r&-out.form=ascii&-out.max=5000&-source=USNO-A2.0&-out=USNO-A2.0&-out=RA(ICRS)&-out=DE(ICRS)&-out=Rmag&-out=Bmag&-out=Epoch info=http://vizier.u-strasbg.fr/. I assume in this link the catalog is missed! Compare it with: [ESO_DSS_2_INFRARED] url=http://archive.eso.org/dss/dss/image?ra=$$+$$+$$&dec=+$$+$$+$$&equinox=J2000&x=$&y=$&Sky-Survey=DSS2-infrared&mime-type=application/x-fits info=http://archive.eso.org/. Accordingly the errormessage, the coordinates are taken for the catalogname (???) Nobody here where CDS ViezieR works?
Charlyms
