Interactive Catalog and Image Search
Interactive search service on the PMM Image database and the NOMAD, USNO-B1 and USNO-A2 catalogs. This service extracts all the objects within a user specified radius or box around a single point in the sky.
Welcome to the USNO
Integrated Image and Catalog Archive Service
Image and Catalog Search Page
To extract a region from one of the image database and/or catalogs listed below, you will need to enter the RA and Dec of the center of the region, and either the width and height of, or the radius of the search region. Then click on the "Retrieve Data" button at the bottom of the form.
This form is populated with a reasonable starting set of default values. As you go further down, you get to more and more specific items. For basic usage, you need only enter a position (RA, Dec), select a box size (rawid, decwid) and hit the "Retrieve Data" button at the bottom of the form. The rest of the form is there to help you tailor the output to your specific needs.Information about any of the options is available in the Guide.