supermoon
noun
su·per·moon
ˈsü-pər-ˌmün 
plural supermoons
: a full moon occurring when the moon is at or near the closest point in its orbit
A supermoon … occurs when the moon is full within 24 hours of being at its closest point to the Earth in its orbit.—
Kaleigh Rogers
Kaleigh RogersVisible supermoons appear 14% bigger and 30% brighter than full moons that occur at the farthest point in the moon's orbit.—Karen Hao
Karen HaoAs the first and only supermoon of 2017 rose high into the sky this Sunday (Dec. 3), astrophotographers seized the opportunity to shoot the moon in all its bigger-than-usual glory.—Hanneke Weitering
Hanneke WeiteringExamples of supermoon in a Sentence
Recent Examples on the Web
Yet new supermoons are essentially invisible to Earthlings unlike their brighter full supermoon counterparts.
—Anthony Robledo, USA Today, 25 Apr. 2025
Upcoming full moons Following the pink moon event, there are eight more full moons to look out for this year, with supermoons occurring in October, November and December.
—Kameryn Griesser, CNN Money, 12 Apr. 2025
Total Solar Eclipse 2033 New supermoons cause all total solar eclipses, and this one is no different.
—Jamie Carter, Forbes.com, 30 Mar. 2025
For the rest of 2025, there will be supermoons, meteor showers and other exciting celestial events to look out for, which will all be conveniently compiled in one place for sky gazers everywhere.
—Manuela López Restrepo, NPR, 10 Jan. 2025
See All Example Sentences for supermoon
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Anthony Robledo, USA Today, 25 Apr. 2025
Upcoming full moons Following the pink moon event, there are eight more full moons to look out for this year, with supermoons occurring in October, November and December.
—Kameryn Griesser, CNN Money, 12 Apr. 2025
Total Solar Eclipse 2033 New supermoons cause all total solar eclipses, and this one is no different.
—Jamie Carter, Forbes.com, 30 Mar. 2025
For the rest of 2025, there will be supermoons, meteor showers and other exciting celestial events to look out for, which will all be conveniently compiled in one place for sky gazers everywhere.
—Manuela López Restrepo, NPR, 10 Jan. 2025
See All Example Sentences for supermoon
Cite this Entry
“Supermoon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supermoon. Accessed 4 May. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share