Venus Transit, 2012 

These visualizations were generated by compositing the small eld-of-view, high-cadence closeups of Venus with the full-disk, low-cadence imagery from Solar Dynamics Observatory (SDO). Two different instruments are used: the Helioseismic and Magnetic Imager (HMI) which sees light in the visible range, and the Atmospheric Imaging Assembly (AIA) which sees light in several wavelengths in the ultraviolet range. Some artifacts may be visible from the compositing, but you have to look pretty closely to see them. The color table threshold was raised for these images, reducing the amount of noise visible in the images. 


For more information visit: 
svs.gsfc.nasa.gov/3941 

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