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Jupiter's innermost large moon, the most volcanically active body in the solar system.

NASA, ESA, CSA, STScI; J. DePasquale, A. Koekemoer, A. Pagan (STScI) (CC BY 4.0)

The most volcanic place in the solar system, squeezed and heated by Jupiter’s gravity.

Io is squeezed and stretched by Jupiter’s gravity as it moves in a slightly eccentric orbit, kept eccentric by its orbital resonance with Europa and Ganymede. The friction heats its interior and powers hundreds of active volcanoes.

Its surface is coloured yellow, red and white by sulphur compounds and is constantly renewed by eruptions.

Àwọn ìṣàmúlò-ètò ààyè-iṣẹ́

JPL SSD: Planetary Satellite Physical Parameters

Àwọn àṣẹ
Ìṣàmúlò-ètò	3,643 km	[1]
Àwọn Ìṣàmúlò-ètò	8.93 × 10²² kg	[1]
Ìjánu-ìṣàmúlò-ètò	3.528 g/cm³	[1]
Ìṣàfihàn ààyè-iṣẹ́	1.8 m/s²	Tí a fì ṣẹ̀dà láti inú àtòjọ-ẹ̀yàn ààyè-iṣẹ́
Ìjánu-ìṣàmúlò-ètò	2.56 km/s	Tí a fì ṣẹ̀dà láti inú àtòjọ-ẹ̀yàn ààyè-iṣẹ́
Ìjánu-ìsún	42.3 wkt	[2]
Àwọn ààyè-iṣẹ́	42.3 wkt	[2]
Ìjánu-ìró láti Jupiter	421,800 km	[2]
Ìwọ̀n tí o bá jẹ́ kanna ní gbogbo àkókò Jupiter

Àwọn ìrànwọ́ àti àkọlé lòòlù àwọn módè́ì tí a fi pamọ́ fún ìmọ̀. Kò yẹ ki wọn lò fún ìṣàfihàn, ìṣàmúlò-ètò àti àwọn ìṣẹ̀dá iṣẹ́. Àwọn ìwé-ẹ̀rì ní ọ̀fẹ̀ àti àwọn ààyè-iṣẹ́ kò ní ìgbà gbà. Ka àwọn ìṣàmúlò-ètò ìròyìn