That black dot looks a bit strange, doesn’t it? That is Venus transiting the face of our Sun. This H-alpha image shows a bit of the activity going on at the surface and in the atmosphere of our star.

Date and place: June 6 2012; Eforie Sud, Constanta, Romania

Camera: Canon EOS 5D Mark III

Telescope: Lunt LS60THa

Exposure: 1/4s

Aperture: 8.3

ISO: 400