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'''Adrastea''' is the second known natural satellite of [[Jupiter]] by distance and the smallest inner moon. Discovered by photos from [[Voyager 2]] in 1979, it became the first moon discovered by an interplanetary spacecraft, rather than from [[Earth]].<br>
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It was known as Jupiter XV until it was named after Adasteia, the foster mother of the Greek god Zeus.<br>
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{| 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"
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Adrastea is one of the few moons in the [[Solar System]] that orbits its planet in less than one of the planet's days. Located at the edge of Jupiter's main ring, it is thought that it contributes material to that ring.
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!bgcolor="lightsteelblue" colspan="2" align="center" |Adrastea
 
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|colspan="2" align="center"|[[Image:Adrastea-outerplanets060929basezip-Orbiter2006P1.jpg|240px]]
 
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|colspan="2" align="center"|'''Adrastea from ''outer_planets-060929-base.zip'' in Orbiter 2006P1'''
 
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!bgcolor="lightsteelblue" colspan="2"|Designation
 
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|Name||align="right"|Adrastea
 
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|width="30%"|Reference body||align="right" width="30%"|[[Jupiter]]
 
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!bgcolor="lightsteelblue" colspan="2"|Planetary mean orbits
 
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|width="30%"|Epoch||align="right" width="50%"|2006.64779710751
 
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|width="30%"|Semimajor axis (a)||align="right" width="50%"|129945120.201941 m
 
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|width="30%"|Eccentricity (e)||align="right" width="30%"|0.00616067756649667
 
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|width="30%"|Inclination (i)||align="right" width="30%"|2.16432655144417° <br> (0.0377746244110352 radian)
 
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|width="30%"|Longitude of the ascending node (LAN, ☊)||align="right" width="30%"|337.391314368855° <br> (5.88858930336778 radian)
 
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|width="30%"|Longitude of periapsis (ϖ)||align="right" width="30%"|554.420868895372° <br> (9.67646960399206 radian)
 
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|width="30%"|Mean longitude (L)||align="right" width="30%"|895.908590028445° <br> (15.6365546928964 radian)
 
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!bgcolor="lightsteelblue" colspan="2"|Selected physical parameters
 
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|width="30%"|Mean radius||align="right" width="30%"|12500 m
 
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|width="30%"|Mass||align="right" width="30%"|1.91×10<sup>16</sup> kg
 
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!bgcolor="lightsteelblue" colspan="2"|Rotation elements
 
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|width="30%"|SidRotPeriod||align="right" width="30%"|25747.2 seconds (7.152 hours)
 
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|width="30%"|SidRotOffset||align="right" width="30%"|0
 
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|width="30%"|Obliqutiy||align="right" width="30%"|0
 
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|width="30%"|LAN||align="right" width="30%"|0
 
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|width="30%"|Note||align="right" width="30%"|*Elements given are from Adrastea.cfg (outer_planets-060929-base.zip)
 
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'''Adrastea (Jupiter XV, S/1979 J 1)''' is the second known [[Natural satellites|moon]] by distance and the smallest of the four of the inner moons of [[Jupiter]]. It was the first moon ever discovered by an interplanetary spacecraft, discovered during the 1979 flyby of Jupiter by [[w:Voyager 2|Voyager 2]]. Adrastea was the foster mother of the Greek god [[w:Zeus|Zeus]].
 
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== Adreastea in Orbiter ==
 
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Adreastea was introduced to Orbiter with the release of ''jupiter-ii.zip'' in October 2002.
 
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{|class="wikitable sortable” style="text-align: center"
 
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|colspan="8"|<center>'''Orbiter versions and add-ons which include Adrastea'''</center>
 
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!Add-on!!Source!!Version!!Author!!Type!!Release Date!!Compatibility!!Wiki article
 
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|[https://www.orbiter-forum.com/resources/celestial-bodies-motion-part-2-4-v2-0-0.295/ Celestial Bodies Motion - Part 2/4 - v2.0.0]||O-F Resources||v2.0.0||cristiapi||Scenery||2 July 2015||*module only||
 
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|[https://library.avsim.net/esearch.php?DLID=&Name=&FileName=outer_planets-060929-base.zip&Author=&CatID=root The Outer Planets 060929 Base]||AVSIM||||Rolf Keibel<br>Carl Romanik<br>Tony Dunn||Scenery||30 September 2006||Orbiter 2006-P1||
 
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|[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||||
 
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|[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||||
 
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|[https://library.avsim.net/esearch.php?DLID=&Name=&FileName=outerplanets-050125.zip&Author=&CatID=root The Outer Planets 050125]||AVSIM||050125||Rolf Keibel<br>Tony Dunn||Scenery||26 January 2005||Orbiter 2005-P1||
 
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|[https://library.avsim.net/esearch.php?DLID=&Name=&FileName=jupiter_ii.zip&Author=&CatID=root Jupiter II]||AVSIM||||Rolf Keibel||Scenery||26 October 2002||||
 
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== See also ==
 
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[[w:Adrastea (moon)|Adrastea]] at [[w:Wikipedia|Wikipedia]]
 
  
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== Gallery ==
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'''DISCOVERY'''<br>
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<gallery widths="100" heights="100">
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Discovered by<br>            Voyager 2<br>David C Jewitt<br>G Edward Danielson<br>
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Adrastea-jupiteriizip.jpg|<center>Adrastea from ''jupiter_ii.zip'' in Orbiter 2002</center>
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Discovery date              8 July 1979<br>
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Adrastea-outerplanets050125zip-Orbiter2005P1.jpg|<center>Adrastea from ''outerplanets-050125.zip'' in Orbiter 2005P1</center>
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DESIGNATIONS<br>                Adrastea<br>Jupiter XV<br>S/1979 J1<br>
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Adrastea-outerplanets060929basezip-Orbiter2006P1.jpg|<center>Adrastea from ''outer_planets-060929-base.zip'' in Orbiter 2006P1</center>
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ORBITAL CHARACTERISTICS<br>
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Adrastea.jpg|<center>Adrastea as seen by the [[w:Galileo (spacecraft)|Galileo]] spacecraft<br>from Wikimedia Commons</center>
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[[Parent body]]              Jupiter<br>
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</gallery>
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[[Mean Orbital Radius]]      129000 km<br>
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[[Eccentricity]]            0.0015<br>
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[[Orbital period]]          7h9.5m (0.269826d)<br>
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[[Average orbital speed]]    31.378 km/s<br>
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[[Inclination]]              0.03° (to Jupiter's equator)<br>
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PHYSICAL CHARACTERISTICS<br>
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[[Dimensions]]                20×16×14 km<br>
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[[Mean radius]]              8.2 km<br>
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[[Volume]]                    ≈2345 <sup>km</sup><br>
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[[Rotation period]]          synchronous<br>
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[[Axial tilt]]               zero<br>
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[[Albedo]]                    0.10<br>
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[[Surface Temperature]]      ≈122 K<br>
  
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[[Category: Articles]]
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[[Category: Celestial bodies]]
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[[Category: Satellites of Jupiter]]
 
{{JupiterSat}}
 
{{JupiterSat}}
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{{SolarSystem}}
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{{Nsat-Stub}}
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[[Category:Articles]]
 
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[[Category:Celestial bodies]]
 
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[[Category:Solar System]]
 
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[[Category:Natural satellites]]
 
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[[Category:Satellites of Jupiter]]
 

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