New HMI Science Nuggets are available at http://hmi.stanford.edu/hminuggets, featuring the following topic

#7 "Measuring the Solar Radius with HMI during the Venus Transit of 2012" contributed by Sebastien Couvidat

The Venus transit of 2012 allowed us to measure the solar radius around 6173Å with HMI: we obtained a value of 959.58″ at 1 AU, with a systematic uncertainty larger than 0.27″.

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