MoonMoon of Jupiter

Themisto

A small moon with a unique orbit.

8km

Diameter

7,507,000km

From Jupiter

130.0days

Orbital Period

1975

Discovered

About

Themisto is a small prograde irregular moon of Jupiter with a unique orbit between the Galilean moons and the Himalia group.

Properties

8km

Diameter

7,507,000km

Semi-major Axis

130.02days

Orbital Period

1975

Discovery Year

Charles T. Kowal

Discovered By

Notable Facts

Themisto was lost after discovery in 1975 and not recovered until 2000

Other Moons of Jupiter

View all

Io

The most volcanically active body in the solar system and innermost Galilean moon.

3,643.2 km

Diameter

1.8 d

Orbit

1610

Discovered

Europa

Jupiter moon with a subsurface ocean considered a prime candidate for extraterrestrial life.

3,121.6 km

Diameter

3.6 d

Orbit

1610

Discovered

Ganymede

The largest moon in the solar system, bigger than Mercury, with its own magnetic field.

5,268.2 km

Diameter

7.2 d

Orbit

1610

Discovered

Callisto

Jupiter's second-largest moon with the most cratered surface in the solar system.

4,820.6 km

Diameter

16.7 d

Orbit

1610

Discovered