Last modified on 6 December 2014, at 15:21


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Blend of super and moon

super- +‎ moon

Coined by astrologer Richard Noelle in 1979

SuperMoon is a word I coined in a 1979 article for Dell Publishing Company's HOROSCOPE magazine, describing a new or full moon which occurs with the Moon at or near (within 90% of) its closest approach to Earth in a given orbit (perigee). In short, Earth, Moon and Sun are all in a line, with Moon in its nearest approach to Earth.
— Richard Noelle [1]


The "Supermoon" of March 19, 2011 (right), compared to a rather "average" moon of December 20, 2010 (left)

supermoon (plural supermoons)

  1. (astrology, astronomy) a full moon or new moon, when the Earth–Moon distance is in the lowest tenth of its range



Usage notesEdit

Some claim this is not a syzygy unless a solar eclipse or lunar eclipse also occurs, but most references disagree.

Alternative formsEdit

See alsoEdit


  1. ^ Nolle, Richard, "Supermoon", Astropro. URL accessed on 14 March 2011; no publication date; modified March 10, 2011.