English: Alternating views of Amaru Facula on Mercury at low and high sun angles. The facula is an irregular depression that is probably a volcanic vent. The source images from the MESSENGER spacecraft are EN0250414210M (10 July 2012) and EN1034777877M (15 February 2014). Both are rotated so that north is up, and EN0250414210M was enlarged about 34% to match the scale of EN1034777877M.
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Captions
Alternating views of Amaru Facula at low and high sun angles