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- Moon Name: Larissa
- Designation: Neptune VII
- Date Discovered: May 24th, 1981
- Discovered by: H. Reitsema, W. Hubbard, L. Lebofsky and D. Tholen
- Average Orbit of Neptune: 45,700.60 mi
- Total Volume: 1,476,067 mi3
- Surface Area: 28,366.56 mi2
14 Larissa Facts for Kids
- Larissa is one of Neptune’s 14 known moons (natural satellites).
- Larissa is named after one of Poseidon’s lovers, who himself was a god in Greek mythology.
- Larissa is also designated as Neptune VII.
- Larissa was discovered on May 24th, 1983 by H. Reitsema, W. Hubbard, L. Lebofsky and D. Tholen.
- Larissa was discovered on accident and based on luck from ground-based stellar occultation observations. A flyby from Voyager 2 in 1989 confirmed that Larissa was a moon.
- The average orbit distance for Larissa is 45,700.60 mi.
- The surface area of Larissa is 45,651.55 mi2.
- The total volume of Larissa is 917,185.51 mi3.
- Larissa orbits the planet Neptune every 13 hours and 12 minutes.
- Larissa is the fourth largest moon of Neptune, based on diameter.
- Larissa is the fifth closest moon to Neptune.
- The Voyager 2 spacecraft is the only probe to visit and photograph Larissa.
- Larissa is believed to have been created by debris from impact events on other moons of Neptune.
- The fate of Larissa is either an impact with Neptune’s atmosphere or it will break apart into a planetary ring.
Additional Resources on Neptune’s moon Larissa