CINXE.COM

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.hmnao.com/nao/","20101224230727","https://web.archive.org/","web","/_static/", "1293232047"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <title>Welcome to HM Nautical Almanac Office</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="description" content="Publications, Services and History of HM Nautical Almanac Office"> <meta name="keywords" content=" Astronomy,almanac,ephemeris,ephemerides,daylight moonlight diagram, observers' calendar, The Astronomical Almanac,The Nautical Almanac,Astronomical Phenomena,Planetary and Lunar Coordinates, Navpac and Compact Data,NavPac software,Rapid Sight Reduction Tables for Navigation, Star Almanac for Land Surveyors, UK Air Almanac,astronomical and calendarial sheet,astronomical positions, sunrise, sunset,moonrise,moonset,twilight times,solar eclipse,lunar eclipse,time zone map"> <meta name="owner" content="HM Nautical Almanac Office, UK Hydrographic Office"> <meta name="robots" content="index, follow"> <link rel="stylesheet" type="text/css" media="screen" href="/web/20101224230727cs_/http://www.hmnao.com/nao/hmnao.css">  </head> <body> <div id="pagesetup"> <div id="bannerbox"> <map name="bannermap"> <area id="tpage" shape="poly" coords="199,199,199,99,599,99,599,0,799,0,799,199" href="https://web.archive.org/web/20101224230727/http://www.ukho.gov.uk/" target="_blank" alt="UKHO"> <area shape="poly" coords="0,0,599,0,599,99,199,99,199,199,0,199" href="https://web.archive.org/web/20101224230727/http://www.hmnao.com/" target="_top" alt="HMNAO"> </map> <img src="/web/20101224230727im_/http://www.hmnao.com/nao/icons/back3.png" border="0" width="800" height="200" alt="HMNAO/UKHO banner" usemap="#bannermap"> <h2 class="cen">Welcome to HM Nautical Almanac Office</h2> </div> <div id="navcontainer"> <ul id="navlist"> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/news/">News</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/publicat/">Publications</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/navpac/">NavPac</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/services/">Data Services</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/online/">On-line data</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/technotes/">Technical Notes</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/aisinfo/">Astronomical Information Sheets</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/copylic/">Copyright & Licensing</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/contacts/">Contacts</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/miscellanea/">Miscellanea</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/history/">History</a></li> <li><a href="https://web.archive.org/web/20101224230727/http://websurf.hmnao.com/" target="_blank">Websurf</a></li> <li><a href="https://web.archive.org/web/20101224230727/http://www.eclipse.org.uk/eclbin/query_hmnao.cgi" target="_blank">Eclipse Portal</a></li> <li><a href="https://web.archive.org/web/20101224230727/http://asa.hmnao.com/" target="_blank">AsA Online</a></li> <li><a href="https://web.archive.org/web/20101224230727/http://www.crescentmoonwatch.org/" target="_blank">Crescent Moon Watch</a></li> <li><a href="/web/20101224230727/http://www.hmnao.com/nao/transit/">Transits of Venus</a></li>  </ul> </div> <div id="textbox"> <h3>Introduction</h3> <p>HM Nautical Almanac Office (HMNAO) is now part of the <a href="https://web.archive.org/web/20101224230727/http://www.ukho.gov.uk/" target="_blank">UK Hydrographic Office</a> based at Taunton in Somerset.</p> <p>These web pages describe the publications and services of HM Nautical Almanac Office. A description of the type of work we carry out and the history of the office is also available.</p> <p>The Office produces astronomical data suitable for a wide range of users, including professional and amateur astronomers, mariners, aviators, surveyors, the Armed Forces, the Police, lawyers, religious groups, architects, schools, diary and calendar manufacturers, photographers and film crews. In fact, anyone requiring astronomical information may require our services.</p> <p>HMNAO is jointly responsible for producing the annual volumes of <em>The Astronomical Almanac</em>, <em>The Nautical Almanac</em> and <em>Astronomical Phenomena</em> in collaboration with our colleagues at the US Nautical Almanac Office within the <a href="https://web.archive.org/web/20101224230727/http://www.usno.navy.mil/USNO/astronomical-applications" target="_blank">Astronomical Applications Department</a> of the <a href="https://web.archive.org/web/20101224230727/http://www.usno.navy.mil/USNO" target="_blank">US Naval Observatory</a>. HMNAO also produces <em>The Star Almanac</em>, <em>NavPac and Compact Data</em>, <em>The UK Air Almanac</em>, <em>Rapid Sight Reduction Tables for Navigation</em> and <em>Planetary and Lunar Coordinates</em> in the United Kingdom.</p> </div> <div id="footerbox"> <img class="bottom" src="/web/20101224230727im_/http://www.hmnao.com/nao/icons/line3.png" alt=""> © Crown Copyright 2008-2010 <br> E-mail: <a href="https://web.archive.org/web/20101224230727/mailto:hmnao@ukho.gov.uk?subject=HMNAO enquiry">hmnao@ukho.gov.uk</a><br> Last modified: Monday, 23-Nov-2009 09:18:37 GMT <br> </div> </div> </body> </html>