|Transits of Venus: 1000AD–2700AD|
|1032 May 24||1040 May 22|
|1145 November 26 †||1153 November 23-24||1275 May 25-26||1283 May 23|
|1388 November 26 †||1396 November 23||1518 May 25-26||1526 May 23|
|1631 December 7||1639 December 4||1761 June 6||1769 June 3-4|
|1874 December 9||1882 December 6||2004 June 8||2012 June 5-6|
|2117 December 11||2125 December 8||2247 June 11||2255 June 9|
|2360 December 12-13||2368 December 10||2490 June 12||2498 June 10|
|2603 December 15-16||2611 December 13|
Venus crossed the disc of the Sun on 1283 May 23rd. The map above shows the visibility of the event. The entire transit could have been seen from the northern part of Russia, Scandinavia, northern and western Europe including the British Isles, western parts of Africa, and the Americas except the south-western part of Alaska. The Sun set while the transit was in progress in the grey area encompassing western Asia, the Middle East, Africa except the western part and south-eastern Europe. The Sun rose while the transit was in progress in the grey area taking in the islands of the central Pacific Ocean, the Hawaiian Islands, the south-western part of Alaska and south-eastern Siberia. The yellow lines on the diagram show the position of the terminator, where the Sun is either rising or setting, at the key phases of the transit.
The geocentric circumstances of the transit are shown in the diagram above. During the transit, the diameter of the Sun is 1889.4 arcseconds and that of Venus is 57.7 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 was around 733.7 arcseconds. The whole transit lasts just over five and a quarter hours.
All timings are given in Universal Time (UT).