Type of server to be listed; one of:
all, catalog, archive, namesvr, imagesvr
or local (optional).
db-name
Name of the database to be queried.
Central Right Ascension of the query. The value
should be for equinox J2000 and given in sexagesimal hours with
a colon (`:') as the separator.
Central Declination of the query. The value
should be for equinox J2000 and given in sexagesimal degrees with
a colon (`:') as the separator. Southern Declinations are
negative.
radius
Radius of the query in minutes of arc.
additional-condition
Any additional condition applied
to the query (optional).
object-name
The name of an astronmical objects whose
coordinates are to be found. Give the name without embedded spaces
and in either case (upper or lower).