Wednesday, June 6, 2012

Transit of Venus, June 5, 2012

The transit of Venus happens in pairs eight years apart - but then with more than a century between cycles. During the pass, Venus appears as a small, dark round spot moving across the face of the sun, like a bug on a dinner plate. Here in South-West Ontario we were blessed with clear skies and relatively low humidity during the whole transit.
I was able to follow and photograph this astronomical spectacle from start at 6:04 PM until the Sun disappeared behind neighbor’s roof around 8:30 PM. It was well worth the time.

The equipment I used was Canon Rebel T1i, 75-300mm lens with 1.4X extender and arc welding filter plate in a place of dedicated Sun filter. Considering that the filter plate is a mass production piece made out of polycarbonate (Plexiglas) and not an optical quality glass, the photos are quite sharp. This particular filter has a gold coating that reflects the sunlight and keeps the filter cool. Simple setup that did what I wanted.

If you look very carefully you will see 5 Sun spots in 2 groups: at center left are 3 spots on top of each other and second group in center right has 2 spots.


Eva said...


anton jopko said...

Just wondering if you know there is an amateur astronomy club in simcoe? we meet the first friday of the month at the NACL building on Ireland Road. (except june,july and august)
our website is