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Virtual Astronomical Observatory
VAO Data Discovery: DataScope
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Search a position for all known information

Use DataScope to find everything that's known about a given target or region of the sky. DataScope will query hundreds of VO-enabled data resources and organize the results for your viewing. New in version 4: Additional resources now being searched, which can (among other things) significantly increase the number of Vizier catalogs found.

Use a target name (e.g., 3c273) or position (e.g., 10 10 10.1, 20 20 20.2)
(in degrees, max is 2)

Positions may be entered in decimal (dd.f, sdd.f) or sexagesimal (hh mm ss.f, dd mm ss.f) notation or as targets recognized by NED or SIMBAD.

The Size should be entered in decimal degrees.

Use the Skip cache flag to ensure that you get the latest results from all services.

By default the last few queries anyone has made are shown at the bottom of the page but there is a checkbox to keep your query from being recorded on this list.

Some recent queries:

m31 (0.25)
null (0.2)
136.0127800,9.0910900 (0.05)
null (0.2)
null (0.6405)

(version 4.5, last updated June 25 2013)