This is a comparison of the size of the "supermoon" on 2011-03-19 (right) with images taken with the same lens on 2007-08-28 during a total lunar eclipse (centre) and during the partial phase of another total eclipse on 2010-12-20 (left). Lines above and below help to show the apparent size difference and measured values for the relative diameters (reproducible to 0.2%) are given.