Define what type of data should be queried.
Select which values to include in the query.
Direction in Right Ascention and Declination with a search radius.
Either enter an object name and click resolve to resolve the object to coordinates. Or enter Right Ascension, Declination and a Radius. The coordinates can be given in three different units, the radius has four possible units, below are some examples :
The following hex representations for RA are also valid :