2012 Transit of Venus

Tuesday, June 5, 2012
7:33 pm EDT
Canon EOS 550D (T2i)
1/250 second @ ISO 100
Warren Dunes State Park (Latitude:  41 54' 33.62" N, Longitude:  86 36'  17.22" W)
MOUNT:Celestron CGEM Computerized Mount
Celestron 9.25" f/10 EdgeHD Aplanatic Schmidt-Cassegrain (with Baader Solar Filter)
Unsharp masking and levels adjusted (slightly) with Adobe Photoshop CS3.
Transits of Venus are among the rarest of predictable astronomical phenomena. They occur in a pattern that repeats every 243 years, with pairs of transits eight years apart separated by gaps of 121.5 and 105.5 years. The first of a pair of Transits of Venus in the beginning of the 21st century took place on June 8, 2004 and the last occurred on June 5, 2012. After 2012's transit, subsequent Transits of Venus will be in December 2117 and December 2125. In the 18th and 19th century, observations of Transits of Venus helped scientists calculate the distance between the Sun and Earth, and therefore the scale of the solar system. The image above was taken at Our Last Transit of Venus at Warren Dunes (near Sawyer, Michigan), hosted by the Kalamazoo Astronomical Society. North is to the right in the image above.