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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <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/transit/V_2255/","20101225000553","https://web.archive.org/","web","/_static/", "1293235553"); </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>2255 Transit of Venus</title> <meta name="keywords" content="almanac,astronomical,sun,transit,venus"> <meta name="description" content="2255 June 9th Transit of Venus"> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <meta name="robots" content="index, follow"> <link rel="stylesheet" type="text/css" media="screen" href="/web/20101225000553cs_/http://www.hmnao.com/nao/transit/transit.css"> <link rel="stylesheet" type="text/css" media="print" href="/web/20101225000553cs_/http://www.hmnao.com/nao/transit/transit_print.css"> </head> <body> <table width="100%" cellspacing="0" cellpadding="0"> <tr><td colspan="2"><img src="/web/20101225000553im_/http://www.hmnao.com/nao/icons/red_l.gif" width="100%" height="2" alt="red line"></td></tr> <tr><td valign="middle" align="left"><table cellspacing="0" cellpadding="1"> <tr align="center" bgcolor="#FFFF00"><td class="head1">2255</td></tr> <tr align="center" bgcolor="#FAFAD2"><td class="head2">TRANSIT</td></tr> <tr align="center" bgcolor="#FAFAD2"><td class="head2">of VENUS</td></tr> </table></td> <td valign="middle" align="right"> <img src="/web/20101225000553im_/http://www.hmnao.com/nao/icons/vtlogo4.gif" alt="Logo showing the transit of 2004 June 8th"> </td></tr> <tr><td colspan="2"><img src="/web/20101225000553im_/http://www.hmnao.com/nao/icons/red_l.gif" width="100%" height="2" alt="red line"></td></tr> </table> <h3>Visibility</h3> <p class="image"><img src="/web/20101225000553im_/http://www.hmnao.com/nao/transit/V_2255/world_2255.gif" alt="Global Visibility of the 2255 Transit of Venus" height="364" width="782"></p> <p>Venus will cross the disc of the Sun on 2255 June 9<sup>th</sup>. The map above shows the visibility of the event.</p> <img class="right" src="/web/20101225000553im_/http://www.hmnao.com/nao/transit/V_2255/vts_2255_geo.gif" alt="Geocentric Circumstances of the 2255 Transit of Venus" height="551" width="434"> <h3>Geocentric Circumstances</h3> <p>The geocentric circumstances of the transit are shown in the diagram to the right. During the transit, the diameter of the Sun is 1891.9 arcseconds and that of Venus is 57.8 arcseconds. In other words, the diameter of Venus is 0.03 that of the Sun, making it look like a rapidly moving sunspot. The minimum separation between the centre of the solar disc and Venus is 491.8 arcseconds. The whole transit lasts just over seven hours.</p> <p>All timings are given in Terrestrial Time (TT), as accurate predictions of the Earth's rotation cannot be made for more than a few years into the future. <br clear="right"></p> <fieldset> <legend>Other transits available:</legend> <table width="100%" cellspacing="2" cellpadding="2"> <tr align="center"><td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/">Transit Home Page</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1032/">1032</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1040/">1040</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1153/">1153</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1275/">1275</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1283/">1283</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1396/">1396</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1518/">1518</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1526/">1526</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1631/">1631</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1639/">1639</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1761/">1761</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1769/">1769</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1874/">1874</a></td></tr> <tr align="center"><td bgcolor="FFFF00"><a href="/web/20101225000553/http://www.hmnao.com/nao/">HMNAO Home Page</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_1882/">1882</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2004/">2004</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2012/">2012</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2117/">2117</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2125/">2125</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2247/">2247</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2255/">2255</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2360/">2360</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2368/">2368</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2490/">2490</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2498/">2498</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2603/">2603</a></td> <td bgcolor="FAFAD2"><a href="/web/20101225000553/http://www.hmnao.com/nao/transit/V_2611/">2611</a></td></tr> </table> </fieldset><p></p> <table width="100%" cellspacing="0" cellpadding="0"> <tr><td colspan="3"><p class="copyright">© Crown Copyright</p><td></tr> <tr><td colspan="3"><img src="/web/20101225000553im_/http://www.hmnao.com/nao/icons/red_l.gif" width="100%" height="2" alt="red line"></td></tr> <tr><td valign="middle" align="left"><address> HM Nautical Almanac Office<br> UK Hydrographic Office<br> E-mail: <a href="https://web.archive.org/web/20101225000553/mailto:hmnao@ukho.gov.uk?subject=2255 Transit of Venus">hmnao@ukho.gov.uk</a><br> Last revision was made on 2007 November 5 </address></td> <td valign="middle" align="center"><p> <a href="https://web.archive.org/web/20101225000553/http://jigsaw.w3.org/css-validator/"><img style="border:0;width:88px;height:31px" src="https://web.archive.org/web/20101225000553im_/http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!"></a> <a href="https://web.archive.org/web/20101225000553/http://validator.w3.org/check/referer"><img border="0" src="https://web.archive.org/web/20101225000553im_/http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01!" height="31" width="88"></a> </p></td> <td valign="middle" align="right"> <img src="/web/20101225000553im_/http://www.hmnao.com/nao/icons/hmnao2.jpg" alt="HMNAO logo"> </td></tr> <tr><td colspan="3"><img src="/web/20101225000553im_/http://www.hmnao.com/nao/icons/red_l.gif" width="100%" height="2" alt="red line"></td></tr> </table> </body> </html>