Websurf is designed to provide a range of astronomical information
in both pre-calculated and dynamic forms. Our Info option provides links to
access Astronomical & Calendarial Sheets and maps for Solar & Lunar Eclipses, First
Sighting of New Moon data and Time Zone maps. The dynamical information covers rise/set
times, azimuth and altitudes, Islamic Prayer Times, First Sighting of New Crescent Moon,
Moon Phases, Equinoxes & Solstices and an Almanac giving solar, lunar and planetary data
for a specific location and time.
Websurf underwent an upgrade at the beginning of 2010. Please use
the Feedback option to report any problems. This site should be regarded as a work
in progress and options available now may be replaced in the future.
The information provided on this site is Crown Copyright and is released
under the terms of the
Open Government Licence.
There is usually a one-off administration fee for the supply of our material for commercial
purposes. If you re-use the information provided, you must include the following
acknowledgement in your product or service:
"© Crown Copyright < year of use>. Contains
material generated by Her Majesty's Nautical Almanac Office (HMNAO) and reproduced by
permission of the United Kingdom Hydrographic Office (UKHO) and Her Majesty's Stationery
Every reasonable effort has been made to ensure the quality of the
information provided here. However, HMNAO does not accept any responsibility whatsoever for
the accuracy and/or reliability of the information as displayed or printed on the user's