Double solar transits of Mercury with the ISS
and a plane
May 9th 2016, Phildelphia, USA
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Pictures taken with: Takahashi FSQ-106ED refractor at f/10, Coronado SM90 H-alpha filter, IDS UI-3370 4 MP video camera.
For the best view of the video, switch to Full HD mode (1080p) and full screen.