BRIGHTON, UNITED KINGDOM - SEPTEMBER 27:  An astronomer stargazes ahead of tonight's supermoon on September 27, 2015 in Brighton, England. Tonight's supermoon, so called because it is the closest full moon to the Earth this year, is particularly rare as it coincides with a lunar eclipse, a combination that has not happened since 1982 and won't happen again until 2033.  (Photo by Jordan Mansfield/Getty Images)