Thursday, June 7, 2012


We missed the transit of Venus across the Sun. Fog, drizzle and rain conspired to ensure the Avalon Peninsula was shrouded from this spectacular event.

The transit only occurs for  6 hours and happens in pairs eight years apart, which are separated from each other by 105 or 121 years. The last transit was in 2004 and the next will not happen until 2117.

Even on a clear night we could not have hoped to witness what the the Solar Dynamics Observatory captured.

NASA's Goddard multimedia site describes the process:

 The videos and images displayed here are constructed from several wavelengths of extreme ultraviolet light and a portion of the visible spectrum. The red colored sun is the 304 angstrom ultraviolet, the golden colored sun is 171 angstrom, the magenta sun is 1700 angstrom, and the orange sun is filtered visible light. 304 and 171 show the atmosphere of the sun, which does not appear in the visible part of the spectrum.

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