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      Summer of the supermoon

      WJAR user submitted photo.

      This is the summer of the supermoon, with three full moons in a row that appear bigger and brighter than normal. But this weekend marks the year's most super-duper supermoon: When the moon rose on Sunday evening, it was as close as a full moon ever got to Earth during 2014.

      Purists will protest: At its closest, the full moon is about 14 percent wider and 30 percent brighter than it is at its farthest. That difference is virtually impossible to perceive with the naked eye. It becomes noticeable only when you compare two photos of the full moon taken under the same conditions at different times of year.

      What's more, the moon comes as close if not closer every month. What makes Sunday's moon so super is merely the fact that this month's lunar perigee (221,796 miles at 1:46 p.m. ET) occurs at around the same time as the official moment of the moon's full phase (2:09 p.m. ET).