Transit of Venus | Rod Pommier

Photographer
Rod Pommier
Email
pommierr@ohsu.edu
Location of photo
Haleakala, Maui, Hawaii, USA
Date/Time of photo
2012-06-05 12:28 through18:28 HST
Equipment
Celestron Super C8 Plus/Byers fork mount. Canon EOS 20D DSLR at ISO 800, 1/1000 second, all exposures. Thousand Oaks Optical Type 2 glass full aperture solar filter.
Description
The image is a composite that shows the entire transit of Venus of 2012-06-05, photographed from atop Haleakala, Maui, Hawaii. The sequence begins at upper left limb of the Sun, showing the black drop effect of 2nd contact. The sequence continues with exposures of Venus position taken approximately every 40 minutes. The sequence ends at the upper right limb of the Sun, again showing the black drop effect of third contact. The black drop effect of 3rd contact is somewhat subdued due to atmospheric extinction with the sun being much closer to the horizon. There was noticeable movement of the sunspots between 2nd and 3rd contact due to rotation of the Sun over more than 6 hours. The sunspot positions are from an exposure taken at 17:30 HST.