On Tuesday June 5, 2012, the planet Venus will transit the Sun. A transit is when a planet or satellite passes directly in front of the Sun and appears as silhouette on the solar disk. I took the above photo on June 8, 2004. How rare is a transit of Venus if one just occurred in 2004? While the transits occur in pairs 8 years apart, the pairs are separated by 105.5 years if the preceding pair occurred in June and 121.5 years if the preceding pair occurred in December. The next pair after Tuesday will start in December 2117.
Tuesday's transit starts at 6:05 PM EDT and will only be half over when the Sun sets here at 9:00 PM. Weather permitting, I plan on setting up my telescopes and cameras at Pt. Mouillee State Game Area Headquarters parking lot. Anyone interested in seeing the event can stop by and take a look. Or you can wait 105 years until 2117.