The K-Cor coronagraph instrument at the Mauna Loa Solar Observatory on Hawai’i is used by a team of two scientists to record the rare transit of Venus across the Sun's corona. Sky & Telescope describes the movie captured by Alfred de Wijn (High Altitude Observatory, NCAR) and Gunther Können (Royal Netherlands Meteorological Institute). 

See full article at Sky & Telescope.

transit of Venus