Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Publications

Picture of almanacs

Annual Astronomical and Navigational Almanacs:

The Astronomical Almanac, The Nautical Almanac, The Air Almanac, Astronomical Phenomena, and The Astronomical Almanac Online provide astronomical data, mainly in tabular form, for use in navigation, surveying, scientific research, litigation, accident reconstruction, and many other activities. Issued annually, the almanacs contain data for one year. These publications are prepared jointly with His Majesty's Nautical Almanac Office , United Kingdom Hydrographic Office.

U.S. Naval Observatory Special Publications:

Publications of the U.S. Naval Observatory, Astronomical Papers Prepared for the Use of the American Ephemeris, and U.S. Naval Observatory Circulars present technical data, mathematical developments, or observations, and are issued at irregular intervals.

Technical Reports:

Preprints and reprints of selected articles written by Astronomical Applications Department astronomers, and related publications by other institutions.

Skip to main content pFad - Phonifier reborn

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.


Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy