The publications listed below are available from the U.S. Naval Observatory. Except for the last four in the list, they are part of the U.S. Naval Observatory Circulars (Circ) series.

They provide computed data, formulas, mathematical developments, or observational results by Naval Observatory astronomers. Only the titles listed below are available from the Naval Observatory. Other titles in the series are no longer available for purchase, although technical libraries (especially astronomy libraries at universities) may have copies.

To order any of these publications in print form, use the order form provided: print it out, fill it in, and mail it to the Naval Observatory with your payment. Unfortunately, we have no way to fill telephone, fax, or e-mail orders, as only checks or money orders (in U.S. currency, drawn on a U.S. bank) can be accepted for payment, and payment must be received before orders are filled. Do not send cash. Prices listed below include shipping.

E-books listed below are free of charge.