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| − | <!--
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| − | Additional parameters for this template are available at [[Template:Infobox Planet]].
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| − | -->{{Infobox Planet
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| − | | name = Io
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| − | | image = [[Image:Io highest resolution true color.jpg|250px|True color image taken by the Galileo probe.]]
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| − | | caption = Click image for description
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| − | | bgcolour = #a0ffa0
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| − | | discovery = yes
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| − | | discoverer = [[Galileo Galilei]]
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| − | | discovered = [[January 7]], [[1610]]
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| − | | mean_orbit_radius = 421,700 [[Kilometer|km]] (0.002819 [[Astronomical unit|AU]])
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| − | | eccentricity = 0.0041
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| − | | periapsis = 420,000 km (0.002807 AU)
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| − | | apoapsis = 423,400 km (0.002830 AU)
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| − | | period = 1.769137786 [[Day|d]] (152,853.5047 [[Second|s]])
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| − | | orbital_circ = 2,649,600 km (0.018 AU)
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| − | | max_speed = 17.406 km/s
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| − | | avg_speed = 17.334 km/s
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| − | | min_speed = 17.263 km/s
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| − | | inclination = 2.21° (to the [[ecliptic]])<br/>0.05° (to Jupiter's equator)
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| − | | satellite_of = [[Jupiter (planet)|Jupiter]]
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| − | | physical_characteristics = yes
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| − | | mean_radius = 1821.3 km (0.286 Earths)
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| − | | dimensions = 3660.0 × 3637.4 × 3630.6 km
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| − | | surface_area = [[1 E13 m²|41,910,000]] [[Square kilometre|km²]] (0.082 Earths)
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| − | | volume = [[1E19 m3|2.53{{e|10}}]] [[Cubic kilometer|km³]] (0.023 Earths)
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| − | | mass = 8.9319{{e|22}} [[Kilogram|kg]] (0.015 Earths)
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| − | | density = 3.528 [[Gram|g]]/[[Cubic centimeter|cm³]]
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| − | | surface_grav = 1.796 [[Acceleration|m/s<sup>2</sup>]] (0.183 ''[[Acceleration due to gravity|g]]'')
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| − | | escape_velocity = 2.558 km/s
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| − | | rotation = [[Synchronous rotation|synchronous]]
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| − | | rot_velocity = 271 km/h
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| − | | temperatures = yes
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| − | | temp_name1 = Surface
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| − | | min_temp 1 = 90 [[Kelvin|K]]
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| − | | mean_temp_1 = 130 K
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| − | | max_temp_1 = 200 K
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| − | | atmosphere = yes
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| − | | surface_pressure = trace
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| − | | atmosphere_composition = 90% [[sulfur dioxide]]
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| − | }}
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| − | '''Io''' ''(eye'-oe,'' {{IPA2|ˈaɪoʊ}}, Greek ''Ῑώ)'' is the innermost of the four [[Galilean moon|Galilean]] [[natural satellite|moons]] of [[Jupiter (planet)|Jupiter]]. Io shines at [[Apparent magnitude|magnitude]] 5.0 in the night sky. It is named after the [[Greek mythology|Greek mythological]] figure [[Io (mythology)|Io]], one of the many lovers of [[Zeus]] (who is also known as [[Jupiter (god)|Jupiter]] in the [[Roman mythology]]). Io is the fourth largest moon in the [[Solar System]].
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| − | Although the name "Io" was suggested by [[Simon Marius]] soon after its discovery in 1610, this name and the names of the other Galilean satellites fell into disfavor for a considerable time, and were not revived in common use until the mid-20th century. In much of the earlier astronomical literature, Io is simply referred to by its [[Roman numeral]] designation as "'''Jupiter I'''", or simply as "the first satellite of Jupiter".
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| − | | |
| − | ==History of observation and exploration==
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| − | The moon Io is believed to have been discovered on [[7 January]], [[1610]] by [[Galileo]]. In his ''Mundus Jovialis'', published in [[1614]], [[Simon Marius]] claimed to have discovered Io and the other moons of Jupiter in [[1609]], one week before Galileo's discovery. Galileo doubted this claim and catalogued the work of Marius as plagiarism.
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| − | In the middle of the 20th century observations were made suggesting that the polar regions of Io were red. The passage of the [[Pioneer program|Pioneer 11]] space probe in the 1970s, verified that the polar region had an orange color, contrasting with the whitish equator. However, Pioneer uncovered little other information on Io.
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| − | When the space probe, [[Voyager 1]] sent its first images near Io in 1979, the scientists found that Io had almost no craters. While analyzing images, Voyager navigation engineer Linda Morabito noticed a "plume" emanating from the surface. Scientists found a relatively young surface caused by intense volcanic activity that covered any signs of craters. Voyager 1 was able to observe nine active volcanoes on the surface, and later [[Voyager 2]] observed eight of the nine active volcanoes.
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| − | The [[Galileo spacecraft]] arrived at Jupiter in 1995, and flew by Io at the end of 1999. Galileo approached Io closer than any other probe, took many photographs, observed volcanoes erupting, and discovered that Io has a large iron core, like the rocky planets of the inner solar system.<ref>{{cite journal | author = R. M. C. Lopes, D. A. Williams| title = Io after Galileo| journal = Rep. Prog. Phys.| volume= 68 | year =2005 | pages=303–340 |doi= 10.1088/0034-4885/68/2/R02
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| − | }}</ref> | |
| − | | |
| − | ==Physical characteristics==
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| − | [[Image:PIA01129 Interior of Io.jpg|thumb|240px|left|Interior of Io]]
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| − | ===Internal Structure===
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| − | Unlike most moons in the outer solar system, Io may be somewhat similar in bulk composition to the terrestrial planets, primarily composed of molten [[silicate]] [[Rock (geology)|rock]]. Recent data from the ''Galileo'' orbiter indicates that Io has a core of [[iron]] (perhaps mixed with [[Pyrite|iron sulfide]]), the core's radius being at least 900 km.<ref name=core/>Unlike the other Galilean satellites, Io has little or no water. This is probably because Jupiter was hot enough early in the evolution of the solar system to drive off the volatile elements in the vicinity of Io, but not hot enough to do so farther out. Io has the highest density out of all the moons in the [[Solar System]].
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| − | | |
| − | [[Image:Iosurface gal.jpg|thumb|left|200px|Io exhibits extraordinary variations in color and brightness as shown in this color-enhanced image.]]
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| − | ===Surface Features===
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| − | When ''Voyager 1'' first returned images of Io in 1979, scientists expected to see numerous craters, the density of which across Io's surface would give clues to the moon's age. However, they were surprised to discover that Io's surface is almost completely lacking in [[impact crater]]s, due to the tremendous amount of volcanic activity constantly reshaping the landscape. Since the surface features visible today were formed relatively recently, the Ionian surface is described as "young", as is the terrestrial surface. In contrast, celestial bodies with heavily cratered features, such as Earth's [[Moon]], are considered to have "old" surfaces, since they have remained in their current state for billions of years. The unusual features and colors on Io's surface have led to its being compared to a rotten [[orange (fruit)|orange]] or to [[pizza]].
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| − | In addition to volcanoes, Io's surface includes nonvolcanic mountains, numerous lakes of molten sulfur, [[caldera]]s up to several kilometres deep, and extensive flows hundreds of kilometres long of low-viscosity fluid (possibly some form of molten sulfur or silicate). Sulfur and its compounds take on a wide range of colors and are responsible for Io's variegated appearance.
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| − | | |
| − | [[Image:Tvashtar Catena.jpg|thumb|250px|right|[[Tvashtar Paterae]], a region of active volcanism on Io]]
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| | | | |
| − | ===Volcanism=== | + | {| cellpadding="2" cellspacing="0" style="margin:25px 0 0 10px; border:3px solid lightsteelblue;width:250px; font-size:90%; font-family:'Arial','Helvetica'; float: right; clear: right;"Template in Orbiter" |
| − | Analysis of the ''Voyager'' images led scientists to believe that the [[lava]] flows on Io's surface were composed mostly of various compounds of molten [[sulfur]]. However, subsequent Earth-based [[infrared]] studies indicate that the flows are too hot for liquid sulfur; some of the hottest spots on Io may reach temperatures as high as 2000 [[Kelvin|K]], 1300 K higher than the boiling point of sulfur, though the average is much lower, at around 130 K. One current theory is that Io's lavas are molten silicate rock. Recent [[Hubble Space Telescope]] observations indicate that the material may be rich in [[sodium]]. There may be a variety of different materials in different locations.<ref name=hubble>Roesler, F. L. et al, [http://www.sciencemag.org/cgi/content/full/283/5400/353?ijkey=2e836ace96ce3f47c37ce6a444fed5fd7b8f0dd8 "Far-Ultraviolet Imaging Spectroscopy of Io's Atmosphere with HST/STIS"] - January 15, 1999 ''[[Science (journal)|Science]]'' Vol. 283. no. 5400, pp. 353 - 357. URL accessed Arpil 15, 2006.</ref><ref name=emissions>Geissler, P. E. et al, [http://www.sciencemag.org/cgi/content/full/285/5429/870#RF4 "Galileo Imaging of Atmospheric Emissions from Io"] - August 6, 1999 ''[[Science (journal)|Science]]'' Vol. 285. no. 5429, pp. 870 - 874. URL accessed April 15, 2006.</ref>
| + | !bgcolor="lightsteelblue" colspan="2" align="center" |Io |
| | + | |- |
| | + | |colspan="2" align="center"|[[Image:IoScrshot.jpg|240px]] |
| | + | |- |
| | + | |colspan="2" align="center"|'''Io in Orbiter 2016 with D3D9 client''' |
| | + | |- |
| | + | !bgcolor="lightsteelblue" colspan="2"|Designation |
| | + | |- |
| | + | |Name||align="right"|Io |
| | + | |- |
| | + | |width="30%"|Reference body||align="right" width="30%"|Jupiter |
| | + | |- |
| | + | !bgcolor="lightsteelblue" colspan="2"|Planetary mean orbits |
| | + | |- |
| | + | |width="30%"|Epoch||align="right" width="50%"|1979.12391832712 (1979 February 14 061605 UTC) |
| | + | |- |
| | + | |width="30%"|Semimajor axis (a)||align="right" width="50%"|422025278.692653 m |
| | + | |- |
| | + | |width="30%"|Eccentricity (e)||align="right" width="30%"|0.00418867166362767 |
| | + | |- |
| | + | |width="30%"|Inclination (i)||align="right" width="30%"|2.18312929° <br> (0.0381027941060868 radian) |
| | + | |- |
| | + | |width="30%"|Longitude of the ascending node (LAN, ☊)||align="right" width="30%"|337.6180631° <br> (5.8925468154509 radian) |
| | + | |- |
| | + | |width="30%"|Longitude of periapsis (ϖ)||align="right" width="30%"|654.3518983° <br> (11.4205950913623 radian) |
| | + | |- |
| | + | |width="30%"|Mean longitude (L)||align="right" width="30%"|737.1542087° <br> (12.8657680372413 radian) |
| | + | |- |
| | + | !bgcolor="lightsteelblue" colspan="2"|Selected physical parameters |
| | + | |- |
| | + | |width="30%"|Mean radius||align="right" width="30%"|1821 km |
| | + | |- |
| | + | |width="30%"|Mass||align="right" width="30%"|8.93×10<sup>22</sup> kg |
| | + | |- |
| | + | |width="30%"|SidRotPeriod||align="right" width="3-%"|152841.6 sec (42.456 hours) |
| | + | |- |
| | + | |width="30%"|Note||align="right" width="30%"|*Elements given are from Io.cfg (Voyager1Jupiter.zip) |
| | + | |} |
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| − | [[Image:PIA00703.jpg|left|thumb|''Galileo'' orbiter images reveal active [[volcano]]es. The eruption in the top inset reaches 140km high, the other is 75km high.]] | + | Io is one of [[Jupiter|Jupiter's]] four [[Galilean Moons]]. It is also the only confirmed satellite to have active volcanoes. Its orbit is in a 1:2:4 resonance with [[Europa]] and [[Ganymede]]. |
| − | Io is most noteworthy for its volcanic nature; it is the most volcanically active body in the [[Solar System]]. In February 2001, the largest recorded volcanic eruptions in the [[solar system]] occurred on Io.<ref>{{cite web|url=http://www2.keck.hawaii.edu/news/archive/eruption/| title=EXCEPTIONALLY BRIGHT ERUPTION ON IO RIVALS LARGEST IN SOLAR SYSTEM| publisher=Keck Observatory News| accessdate=2006-03-04}}</ref> Like [[volcano]]es on [[Earth]], Ionian volcanoes emit sulfur and [[sulfur dioxide]]. Originally it was thought that many [[lava]] flows consisted of sulfurous [[chemical substance|substances]]. However, it is now believed that many of them are molten silicate rock as on the Earth.
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| − | The energy for this activity probably derives from [[tidal force]]s among Io, Jupiter, and the [[Jovian]] moons [[Europa (moon)|Europa]] and [[Ganymede (moon)|Ganymede]]. The three moons are locked into [[orbital resonance|Laplace-resonant orbits]] such that Io orbits twice for each orbit of Europa, which in turn orbits twice for each orbit of Ganymede (Callisto will eventually join this resonant relationship as well); furthermore, Io always [[Tidal locking|keeps the same face]] towards Jupiter. The gravitational interaction of Europa, Ganymede and Jupiter cause Io to "stretch" and "bend" by as much as 100 meters, a process which generates heat through internal friction.
| + | == Io in Orbiter == |
| | + | Io was introduced to [[Orbiter]] in the Orbiter 2002 release, and each version after that. Io's orbit was governed by the Io.cfg file in Orbiter 2002 and later versions until Orbiter 2005 when Vsop87.dll governed Io's orbit. Io is modeled as a sphere 48806 km in diameter with a mass of 8.93×10<sup>22</sup> kg. |
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| − | Some of Io's volcanic plumes have been measured rising over 300 km above the surface before falling back, with material ejected from the surface at approximately one kilometre per second. The volcanic eruptions change rapidly; in just four months between the arrivals of [[Voyager 1]] and [[Voyager 2]], some eruptions stopped and others began. The deposits surrounding the vents also changed visibly during this time.
| + | {|class="wikitable sortable” style="text-align: center" |
| | + | |- |
| | + | |colspan="8"|<center>'''Orbiter versions and add-ons which include Io'''</center> |
| | + | |- |
| | + | !Add-on!!Source!!Version!!Author!!Type!!Release Date!!Compatibility!!Wiki article |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2016-torrent-files.5427/ Orbiter 2016 - torrent files]||O-F Resources||2016||martins||Orbiter Download||23 August 2016||Orbiter 2016|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2016-core-msi-exe-edition.5426/ Orbiter 2016 Core - MSI / EXE edition]||O-F Resources||2016||martins||Orbiter Download||23 August 2016||Orbiter 2016|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2016-core-zip-edition.5425/ Orbiter 2016 Core - ZIP edition]||O-F Resources||2016||martins||Orbiter download||23 August 2016||Orbiter 2016|| |
| | + | |- |
| | + | |[http://orbit.medphys.ucl.ac.uk/download.html Orbiter core package download]<br>(The actual download page for Orbiter 2016)||Orbiter download page||Orbiter 2016||martins||Orbiter download||23 August 2016||Orbiter 2016|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/celestial-bodies-motion-part-1-4-v2-0-0.132/ Celestial Bodies Motion - Part 1/4 - v2.0.0]||O-F Resources||v2.0.0||cristiapi||Scenery||2 July 2015||*module only|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2010-p1.5428/ Orbiter 2010-P1]||O-F Resources||100830||martins||Orbiter Download||30 August 2010||Orbiter 2010-P1|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2010.5429/ Orbiter 2010]||O-F Resources||100606||martins||Orbiter Download||5 June 2010||Orbiter 2010|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2006-p1.5430/ Orbiter 2006-P1]||O-F Resources||060929||martins||Orbiter Download||29 September 2006||Orbiter 2006-P1|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2006.5431/ Orbiter 2006]||O-F Resources||060504||martins||Orbiter Download||4 May 2006||Orbiter 2006|| |
| | + | |- |
| | + | |[https://library.avsim.net/esearch.php?DLID=&Name=&FileName=outerplanets-050329_update.zip&Author=&CatID=root The Outer Planets 050329 Update]||AVSIM||050329||Rolf Keibel<br>Tony Dunn<br>Carl Romanik||Scenery||30 March 2005|||| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/the-outer-planets-050223-update.2483/ The Outer Planets 050223 Update]||O-F Resources||2005-02-23||VF2_Rolf||Scenery||23 February 2005|||| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/2005-with-p1-patch-files.5432/ 2005 (with P1 patch files)]||O-F Resources||050216||martins||Orbiter Download||16 February 2005||Orbiter 2005|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2003-p2.5433/ Orbiter 2003-P2]||O-F Resources||031217||martins||Orbiter Download||17 December 2003||Orbiter 2003-P2|| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2003-p1.5434/ Orbiter 2003-P1]||O-F Resources||031105||martins||Orbiter Download||5 November 2003||Orbiter 2003-P1| |
| | + | |- |
| | + | |[https://www.orbiter-forum.com/resources/orbiter-2002.5436/ Orbiter 2002]||O-F Resources||020419||martins||Orbiter Download||19 April 2002||Orbiter 2002|| |
| | + | |} |
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| − | Another source of energy is Jupiter's [[magnetic field]] lines, which Io crosses, [[induction|generating]] an [[electric current]]. Though not a large source of energy compared to the tidal heating, this current may carry more than 1,000 giga[[watt]]s with a potential of 400 kilo[[volt]]s. It also strips [[ion|ionized atoms]] from Io at the rate of a thousand kilograms per second. Due to the rapid rotation of Jupiter's magnetic field, these particles are swept along the orbit in front of Io where they form a [[torus]] of intense radiation around Jupiter that emits bright [[ultraviolet]] light. Particles escaping from this torus are partially responsible for Jupiter's unusually large [[magnetosphere]], their outward pressure inflating it from within. Recent data from the [[Galileo spacecraft|Galileo]] orbiter indicate that Io might have its own magnetic field.<ref>Sarson, G. R. et al, [http://www.sciencemag.org/cgi/content/full/276/5315/1106 "Magnetoconvection Dynamos and the Magnetic Fields of Io and Ganymede"] - May 16, 1997, ''[[Science (journal)|Science]]'' Vol. 276. no. 5315, pp. 1106 - 1108. URL accessed April 15, 2006.</ref><ref name=core>[http://www.jpl.nasa.gov/releases/96/glliocor.html "NASA'S GALILEO FINDS GIANT IRON CORE IN JUPITER'S MOON IO"] - May 3, 1996 [[NASA]] Press release. URL accessed Arpil 15, 2006</ref><ref name=nebula>Krimigis, S. M. et al, [http://www.nature.com/nature/journal/v415/n6875/full/415994a.html "A nebula of gases from Io surrounding Jupiter"] - 28 February, 2002 ''[[Nature (journal)|Nature]]'' '''415''', 994-996. URL accessed 15 April, 2006.</ref>
| + | == See also == |
| | + | *[[w:Io (moon)|Io]] in [[w:Wikipedia|Wikipedia]] |
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| − | The location of Io with respect to the Earth and Jupiter has a strong influence on the Jovian [[radio]] emissions as seen from the earth: When Io is visible, radio signals from Jupiter increase considerably.
| + | == Gallery == |
| | + | <gallery widths="100" heights="100"> |
| | + | IoOrbiter2002.jpg|<center>Io in Orbiter 2002</center> |
| | + | Io-orbiter2002p3.jpg|<center>Io in Orbiter 2002P3</center> |
| | + | Io-Orbiter2003P2.jpg|<center>Io in Orbiter 2003P2</center> |
| | + | Io-Voyager1Jupiterzip-Orbiter2003P2.jpg|<center>Io from ''Voyager1Jupiter.zip'' in Orbiter 2003P2</center> |
| | + | Io-Orbiter2005P1.jpg|<center>Io in Orbiter 2005P1</center> |
| | + | Io-Orbiter2006P1.jpg|<center>Io in Orbiter 2006P1</center> |
| | + | Io-Orbiter2010P1-Orbiter2010P1.jpg|<center>Io in Orbiter 2010P1</center> |
| | + | IoScrshot.jpg|<center>Io in Orbiter 2016 with D3D9</center> |
| | + | Io highest resolution true color.jpg|<center>Io as seen by the [[w:Galileo (spacecraft)|Galileo]] spacecraft on 3 July 1999<br>from Wikimedia Commons</center> |
| | + | Galilean moon Laplace resonance animation 2.gif|<center>Animation of three inner Galilean moons showing orbital resonance<br>from Wikimedia Commons</center> |
| | + | </gallery> |
| | | | |
| − | ===Atmosphere===
| + | [[Category:Articles]] |
| − | Io has an extremely thin [[celestial body atmosphere|atmosphere]] consisting mainly of sulfur dioxide (SO<sub>2</sub>) with a pressure of a billionth of an [[atmosphere (unit)|atmosphere]]. The thin Ioan atmosphere means any future lander-type probes sent to investigate Io will not need to be encased in an aeroshell-style heatshield, but instead, require [[retrorocket]]s for a soft [[landing]]. The thin atmosphere also necessitates a rugged lander capable of enduring the strong Jovian [[radiation]], which a thicker atmosphere would attenuate.
| + | [[Category:Celestial bodies]] |
| − | | + | [[Category:Solar System]] |
| − | The same radiation (in the form of a [[magnetosphere|plasma]]) strips the atmosphere so that it must be constantly replenished. The most dramatic source of SO<sub>2</sub> is volcanism, but the largest source is the sunlight-driven sublimation of SO<sub>2</sub> frozen on the surface. The atmosphere is largely confined to the equator, where the surface is warmest.
| + | [[Category:Natural satellites]] |
| − | | + | [[Category:Satellites of Jupiter]] |
| − | High resolution images of Io show an [[aurora]]-like glow. As on Earth, this is due to radiation hitting the atmosphere. Auroras usually occur near the magnetic poles of planets, but since Io does not have a magnetic field, and the atmosphere is thickest at the equator, Io's aurora is brightest there.
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| − | A summary of Io's atmosphere is contained in the chapter by McGrath et al. in the book "Jupiter: The Planet, Satellites and Magnetosphere" (2004).
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| − | | |
| − | ==See also==
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| − | *[[Jupiter's moons in fiction]]
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| − | *[[List of geological features on Io]]
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| − | *[[List of mountains on Io]]
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| − | *[[List of paterae on Io]]
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| − | | |
| − | ==References==
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| − | {{reflist}}
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| − | | |
| − | == External links ==
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| − | * [http://www.nineplanets.org/io.html Bill Arnett's Io webpage]
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| − | * [http://www.martiana.org/mars/jupiter/jupifrm.htm The Calendars of Jupiter]
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| − | * [http://www.cosis.net/abstracts/EAE03/07912/EAE03-J-07912.pdf The Conundrum Posed by Io's Minimum Surface Temperatures]
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| − | * [http://www.windows.ucar.edu/tour/link=/jupiter/moons/io_composition_overview.html&edu=high Io's Composition]
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| − | <div style="clear: both; margin-top: 2em; text-align: center;">''... | [[Thebe (moon)|Thebe]] | '''Io''' | [[Europa (moon)|Europa]] | ...''</div>
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| − | <br/>{{Moons of Jupiter}}
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| − | [[lv:Jo (pavadonis)]]
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| − | [[lt:Ijo (palydovas)]]
| |
| − | [[hu:Io]]
| |
| − | [[nl:Io (maan)]]
| |
| − | [[ja:イオ (衛星)]]
| |
| − | [[no:Io (måne)]]
| |
| − | [[nn:Jupitermånen Io]]
| |
| − | [[pl:Io (księżyc)]]
| |
| − | [[pt:Io]]
| |
| − | [[ro:Io]]
| |
| − | [[ru:Ио (спутник Юпитера)]]
| |
| − | [[sk:Io (mesiac)]]
| |
| − | [[sl:Io (luna)]]
| |
| − | [[fi:Io]]
| |
| − | [[sv:Io (måne)]]
| |
| − | [[tl:Io (buwan)]]
| |
| − | [[tr:İo (uydu)]]
| |
| − | [[zh:木卫一]]
| |
| | | | |
| | {{JupiterSat}} | | {{JupiterSat}} |
| − | {{Nsat-Stub}} | + | {{SolarSystem}} |
