Welcome to Her Majesty's Nautical Almanac Office
HMNAO is responsible for producing the annual volumes of The Astronomical
Almanac, The Nautical Almanac, The Star Almanac and
The UK Air Almanac in the United Kingdom.
HMNAO also produces astronomical data suitable for a wide range of users,
including professional and amateur astronomers, mariners, aviators,
surveyors, the armed forces, lawyers, religious groups, architects,
schools, diary and calendar publishers, photographers and film crews.
This information can be obtained by contacting the
Astronomy Information Service of
the National Maritime Museum.
These web pages describe the history of HMNAO, its work and its publications
and services.
- Relocation of HMNAO
-
On the closure of the Royal Greenwich Observatory on 31st October 1998, the
Particle Physics and Astronomy Research Council transferred HM Nautical Almanac
Office to the Council for the Central Laboratory of the Research Councils.
Full details of the new address of the NAO
are now available.
- Publications
- Information on the almanacs, software and other publications of
HMNAO: what they contain, how much they cost, and how to order copies.
- Astronomical Information Sheets and Technical Notes
- Information on both general astronomical data and documents on specific
techniques used by the HMNAO: what they contain and how to get them.
- Data Services
- HMNAO provides specialised data to many types of client. These
pages describe some of our more popular services and how they are provided.
- On-line Data
- Daylight/moonlight diagrams and tables for major observatories, and
calendarial data sheets for this year and past years.
- August 1999 Eclipse of the Sun
- Information on the total eclipse of the Sun which takes place on
Wednesday 11th August 1999.
- News
- Information about new products, publication dates of forthcoming almanacs
and other news related to HMNAO and its work.
- History
- The history of the Nautical Almanac Office and its role in the
story of navigation at sea.
- People
- Who works in HMNAO, and how to contact them.
[PUBLICATIONS]
[ASTRONOMICAL INFORMATION SHEETS AND TECHNICAL NOTES]
[DATA SERVICES]
[ON-LINE DATA]
[NEWS]
[HISTORY]
[PEOPLE]
This site has been designed with accessibility in mind. All of our pages
have earned the Bobby 
rating,
which means that they are accessible to people with disabilities.
HM Nautical Almanac Office, Rutherford Appleton Laboratory
E-mail: hmnao@nao.rl.ac.uk
Last revision was made on 1998 December 18
Copyright © 1997,1998 HM Nautical Almanac Office. All Rights Reserved.
Permission must be granted to reproduce this material. HM Nautical Almanac
Office, the Rutherford Appleton Laboratory and the Council for the Central
Laboratory of the Research Councils do not accept any responsibility for loss
or damage arising from the use of information contained in any of the
following pages.