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" Jupiter II" redirects here. To get the spaceship in the 1960s tv show Lost in Space, find Jupiter installment payments on your Europa The case color photo taken by the Galileo probe

Europa's walking hemisphere, since seen by the Galileo spacecraft. The dominant crater in the lower correct is Pwyll. Darker areas are locations where Europa's primarily water glaciers surface provides a higher nutrient content. Breakthrough

Discovered simply by Galilei, Galileo

Marius, Bob

Discovery time January six, 1610[1]

Designations

Alternate name(s) Jupiter 2

Adjective Europan

Orbital qualities[2]

Epoch January 8, 2005

Periapsis 664 862 km[3]

Apoapsis 676 938 kilometers[3]

Mean orbit radius 670 900 km[4]

Eccentricity 0. 009[4]

Orbital period a few. 551 181 d[4]

Average orbital speed 13. 740 km/s[4]

Tendency 0. 470° (to Jupiter's equator)[4]

Satellite of Jupiter

Physical attributes

Mean radius 1569 kilometres (0. 245 Earths)[4]

Surface area 3. 2009 × 107 km2 (0. 061 Earths)[5]

Volume 1 ) 593 × 1010 km3 (0. 015 Earths)[5]

Mass 4. 70 × 1022 kg (0. 008 Earths)[4]

Mean denseness 3. 01 g/cm3[4]

Equatorial surface the law of gravity 1 . 314 m/s2 (0. 134 g)[3]

Escape velocity 2 . 025 km/s[3]

Rotation period Synchronous[6]

Axial lean 0. 1°[7]

Albedo zero. 67 ± 0. 03[8]

Surface temperature.

Surface

min indicate max

~50 K[9] 102 K a hundred and twenty-five K

Noticeable magnitude 5. 29 (opposition)[8]

Atmosphere

Surface area pressure 0. 1 µPa (10-12 bar)[10]

Europa (pronounced /jʊˈroʊpə/ ( listen);[11] or perhaps as Traditional Ευρώπη) is a sixth celestial body overhead of the planet Jupiter, and the most compact of it is four Galilean satellites. Continente europeo was discovered in 1610 by simply Galileo Galilei (and possibly independently by Simon Marius), and named after a mythological Phoenician noblewoman, Europa, who was courted by simply Zeus to become the full of Crete.

Slightly smaller than Earth's Moon, Europa is definitely primarily made of silicate mountain and likely has an straightener core. It has a tenuous atmosphere composed primarily of fresh air. Its surface is composed of ice cubes and is among the smoothest in the Solar System. This kind of surface is striated by simply cracks and streaks, when craters happen to be relatively irregular. The apparent youth and smoothness in the surface include led to the hypothesis that the water marine exists beneath it, which may conceivably act as an property for alien life.[12] This hypothesis proposes that heat energy from tidal flexing causes the sea to remain water and pushes geological activity similar to menu tectonics.[13]

Though only fly-by missions include visited the moon, the intriguing characteristics of Europa have generated several focused exploration proposals. The Galileo mission offered the bulk of current data in Europa. A fresh mission to Jupiter's icy moons, the Europa Jupiter System Objective (EJSM), is usually proposed for a launch in 2020.[14] Opinion on extraterrestrial life has ensured a high account for the moon and has led to stable lobbying to get future quests.[15][16] Articles

[show]

* 1 Breakthrough discovery and naming

* two Orbit and rotation

2. 3 Physical characteristics

o 3. one particular Internal composition

o three or more. 2 Surface area features

+ 3. installment payments on your 1 Lineae

+ a few. 2 . a couple of Other geological features

to 3. several Subsurface water

o three or more. 4 Atmosphere

* some Potential for alien life

* 5 Exploration

to 5. you Spacecraft plans and cancellation

* 6 See also

* several References

to 7. 1 Further examining

* 8 External backlinks

* being unfaithful References

[edit] Discovery and naming

Europa, along with Jupiter's three other greatest moons, Io, Ganymede, and Callisto, was discovered simply by Galileo Galilei in January 1610. The first reported observation of Io was performed by Galileo Galilei about January several, 1610 by using a 20x-power, refracting telescope in the University of Padua. However , in that declaration, Galileo wasn't able to separate Io and Continente europeo due to the...

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