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Parallax Effect Charted in the 2012 Transit of Venus
Combined images taken simultaneously (06 June 2012, 03:46:18 UTC) from Svalbard and Canberra, showing the Venus parallax effect from 2 different locations on Earth, separated by 11600km. Credit: Pérez Ayúcar/Breitfellner
Back in the 18th century, astronomers were trying to determine the distance from the Earth to the Sun. They used the parallax method during the Transits of Venus the 1760s to help answer that question, and their results provided a cosmic measuring stick that has allowed astronomers to measure distances in the Universe.
How did that method work? New images and movies of the transit of Venus on June 6, 2012 which compare event from two different locations on Earth clearly show the parallax effects that have made Venus transits so important historically.
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Read the rest of Parallax Effect Charted in the 2012 Transit of Venus (473 words)
© nancy for Universe Today, 2012. | Permalink | No comment |
Post tags: sun, Transit of Venus, Venus
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2012-09-28 10:10:54
Source: http://www.universetoday.com/97631/parallax-effect-charted-in-the-2012-transit-of-venus/
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