3 June 2012
The extraordinary transit of Venus by the face of the Sun in 2004 was one of the most photographed events in the history of heaven.
Both scientific and artistic images came to us in large numbers from areas that could see traffic : Europe and much of Asia, Africa and North America.
Scientifically, the solar photographers confirmed that the effect of the black drop is more related to the clarity of vision of the camera or telescope than to the atmosphere of Venus.
Artistically, the images can be divided into several categories.
A guy captures the transit in front of a very detailed Sun.
Another category captures a double coincidence, such as Venus and a plane silhouetted at the same time, or Venus with the International Space Station in low Earth orbit.
A third type of image consists of a fortuitous distribution of some clouds with an interesting aspect, as shown for example in today’s image, taken from North Carolina, USA.
Sky enthusiasts around the world are excited by the transit of Venus that will take place on Tuesday.
It may be interesting to ask if a person will live to see, and remember to have seen, both the transit of Venus on Tuesday and the next in 2117.
The area of visibility of the transit of Venus
Check in the image the visibility zone of the transit of Venus or in this other at a higher resolution .
The lucky ones who will be able to contemplate the transit of Venus are still in time to prepare a solar funnel to be able to observe it safely.
In case you can not see it live and live, you have available this website where they will broadcast it in Spanish .
The Venus project: The story of an exciting journey to the transit of Venus in the eighteenth century
The Venus project was an 18th century project in which several European countries (mainly England and France) collaborated with the aim of scrutinizing the last transit of Venus that has taken place.
This project has had enormous repercussions in the contemporary science, because it allowed to calculate the absolute distances between the stars of the solar system; in 1835 the director of the observatory of Berlin Johann Franz Encke obtained, from the data obtained in the transits of 1761 and 1769, a value of the solar parallax of 8.57 seconds of arc, the astronomical unit , which corresponded to a distance Tierra-Sol of 153,500,000 km.
It was an international event for which they had to travel vast distances (to about 70 improvised observatories) so that observation from several points allowed the necessary calculation.
The video that we present to you is a chapter of the documentary project “History of Humanity”, the chapter “Science and illustration: the transit of Venus.”