CAPE CANAVERAL, Fla. -- Chalk up one more moon for Neptune.

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NASA announced the discovery of Neptune's 14th moon Monday. The Hubble Space Telescope captured the moon as a white dot in photos of Neptune on the outskirts of our solar system.

This diagram provided by NASA shows the orbits of several moons located close to the planet Neptune. NASA announced the discovery of Neptune's 14th moon on Monday, July 15, 2013.

(AP Photo/NASA)

The new moon - Neptune's tiniest at just 12 miles across - is designated S/2004 N 1.

The SETI Institute's Mark Showalter of Mountain View, Calif., made the discovery. He was studying the segments of rings around Neptune when the white dot popped out, 65,400 miles from Neptune. He tracked its movement in more than 150 pictures taken from 2004 to 2009.

The considerably bigger gas giant Jupiter has four times as many moons, with 67.

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