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HM Nautical Almanac Office: Transits of Venus

2117 December 11th Transit of Venus

Visibility

Global Visibility of the 2117 Transit of Venus

Venus will cross the disc of the Sun on 2117 December 11th. The map above shows the visibility of the event.

Geocentric Circumstances

Geocentric Circumstances of the 2117 Transit of Venus

The geocentric circumstances of the transit are shown in the diagram above. During the transit, the diameter of the Sun is 1948.6 arcseconds and that of Venus is 63.1 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 723.7 arcseconds. The whole transit lasts just under five and three quarter hours.

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.

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Last modified: Tuesday, 03-May-2011 14:11:31 BST