S/2003 J 23
Template:Short description {{#invoke:infobox|infoboxTemplate | class = vcard | titleclass = fn org | title = S/2003 J 23 | image = {{#invoke:InfoboxImage|InfoboxImage|image=S2003j23ccircle.gif|upright={{#if:||1.1}}|alt=}} | caption = Discovery image of S/2003 J 23 by the Canada-France-Hawaii Telescope in February 2003 | headerstyle = {{#if:|background-color:|background-color:#E0CCFF}} | labelstyle = max-width:{{#if:||11em}}; | autoheaders = y
| header1 = Discovery <ref name="MPEC-2004-B81"/>
| label2 = Discovered by
| data2 = Scott S. Sheppard et al.
| label3 = Discovery site
| data3 = Mauna Kea Obs.
| label4 = Discovery date
| data4 = 6 February 2003 (imaged)
January 2004 (announced)
| label5 = Template:Longitem
| data5 =
| header10 = {{#if:|Designations|Designations}}
| label11 = Template:Longitem | data11 = | label12 = Pronunciation | data12 = | label13 = Template:Longitem | data13 = | label14 = Template:Longitem | data14 = | label15 = Template:Longitem | data15 = | label16 = Adjectives | data16 = | label17 = Symbol | data17 =
| header20 = Orbital characteristics{{#ifeq:|yes| (barycentric)}} <ref name="MPEC-2021-B136"/>
| data21 = | data22 = {{#if:17 December 2020 (JD 2459200.5) |Epoch 17 December 2020 (JD 2459200.5)}} | data23 = {{#if: | Uncertainty parameter {{{uncertainty}}}}} | label24 = Observation arc | data24 = 14.22 yr (5,193 d) | label25 = Earliest precovery date | data25 = | label26 = {{#switch:{{{apsis}}} |apsis|gee|barion|center|centre|(apsis)=Apo{{{apsis}}} |Ap{{#if:|{{{apsis}}}|helion}}}} | data26 = | label27 = Peri{{#if:|{{{apsis}}}|helion}} | data27 = | label28 = Peri{{#if:|{{{apsis}}}|apsis}} | data28 = | label29 = {{#switch:{{{apsis}}} |helion|astron=Ap{{{apsis}}} |Apo{{#if:|{{{apsis}}}|apsis}}}} | data29 = | label30 = Periastron | data30 = | label31 = Apoastron | data31 = | label32 = Template:Longitem | data32 = Template:Cvt | label33 = Template:Longitem | data33 = | label34 = Eccentricity | data34 = 0.3207567 | label35 = Template:Longitem | data35 = –2.17 yr (–792.00 d) | label36 = Template:Longitem | data36 = | label37 = Template:Longitem | data37 = | label38 = Template:Longitem | data38 = 257.08447° | label39 = Template:Longitem | data39 = Template:Deg2DMS / day | label40 = Inclination | data40 = 146.15464° Template:Small | label41 = Template:Longitem | data41 = | label42 = Template:Longitem | data42 = 142.40639° | label43 = Template:Longitem | data43 = | label44 = Template:Longitem | data44 = | label45 = Template:Longitem | data45 = 295.73090° | label46 = Template:Nowrap | data46 = | label47 = Satellite of | data47 = Jupiter | label48 = Group | data48 = Pasiphae group | label49 = {{#switch: |yes|true=Satellites |Known satellites}} | data49 = | label50 = Star | data50 = | label51 = Earth MOID | data51 = | label52 = Mercury MOID | data52 = | label53 = Venus MOID | data53 = | label54 = Mars MOID | data54 = | label55 = Jupiter MOID | data55 = | label56 = Saturn MOID | data56 = | label57 = Uranus MOID | data57 = | label58 = Neptune MOID | data58 = | label59 = TJupiter | data59 =
| header60 = Proper orbital elements
| label61 = Template:Longitem
| data61 = {{#if: |{{{p_semimajor}}} AU}}
| label62 = Template:Longitem
| data62 =
| label63 = Template:Longitem
| data63 =
| label64 = Template:Longitem
| data64 = {{#if: |{{{p_mean_motion}}} degTemplate:\yr}}
| label65 = Template:Longitem
| data65 = {{#if:|{{#expr:360/1 round 5}} yr
({{#expr:365.25*360/1 round 3}} d) }}
| label66 = Template:Longitem
| data66 = {{#if:|{{{perihelion_rate}}} arcsecTemplate:\yr }}
| label67 = Template:Longitem
| data67 = {{#if:|{{{node_rate}}} arcsecTemplate:\yr}}
| header70 = Template:Anchor{{#if:| Physical characteristics|Physical characteristics}}
| label71 = Dimensions | data71 = | label72 = Template:Longitem | data72 = ≈Template:Val<ref name="SheppardMoons"/> | label73 = Template:Longitem | data73 = | label74 = Template:Longitem | data74 = | label75 = Template:Longitem | data75 = | label76 = Flattening | data76 = | label77 = Circumference | data77 = | label78 = Template:Longitem | data78 = | label79 = Volume | data79 = | label80 = Mass | data80 = | label81 = Template:Longitem | data81 = | label82 = Template:Longitem | data82 = | label83 = Template:Longitem | data83 = | label84 = Template:Longitem | data84 = | label85 = Template:Longitem | data85 = | label86 = Template:Longitem | data86 = | label87 = Template:Longitem | data87 = | label88 = Template:Longitem | data88 = | label89 = Template:Longitem | data89 = | label90 = Template:Longitem | data90 = | label91 = Template:Longitem | data91 = | label92 = Template:Longitem | data92 = | label93 = {{#if: |Template:Longitem |Albedo}} | data93 = 0.04 Template:Small<ref name="SheppardMoons"/> | label94 = Temperature | data94 =
| data100 = {{#if:|
{{#if:|}}{{#if:|}}{{#if:|}}{{#if:|}}Surface temp. | min | mean | max |
---|---|---|---|
{{{temp_name1}}} | |||
{{{temp_name2}}} | |||
{{{temp_name3}}} | |||
{{{temp_name4}}} |
}}
| label101 = Surface absorbed dose rate | data101 = | label102 = Surface equivalent dose rate | data102 = | label103 = Template:Longitem | data103 = | label104 = Template:Longitem | data104 = | label105 = Template:Longitem | data105 = 23.6<ref name="SheppardMoons"/> | label106 = Template:Longitem | data106 = 16.6<ref name="MPEC-2021-B136"/> | label107 = Template:Longitem | data107 =
| header110 = Atmosphere
| label111 = Template:Longitem | data111 = | label112 = Template:Longitem | data112 = | label113 = Composition by volume | data113 =
| below = {{#if:||Template:Reflist }}
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Template:Nowrap is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard et al. in 2004 from pictures taken in 2003.<ref>IAUC 8281: S/2003 J 23 2004 February 4 (discovery)</ref><ref name="MPEC-2004-B81">MPEC 2004-B81: S/2003 J 23 2004 January 31 (discovery and ephemeris)</ref>
Template:Nowrap is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 24,700 Mm in about 792 days, at an inclination of 146° to the ecliptic, in a retrograde direction and with an eccentricity of 0.321.
It belongs to the Pasiphae group, irregular retrograde moons orbiting Jupiter at distances ranging between 22.8 and 24.1 Gm, and with inclinations ranging between 144.5° and 158.3°.
This moon was considered lost<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name=Jacobson>Template:Cite journal</ref><ref>Template:Cite journal</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> until late 2020, when it was recovered by Sheppard and independently by amateur astronomer Kai Ly.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The recovery of the moon was announced by the Minor Planet Center on 13 January 2021, while additional recovery observations by Sheppard were later published on 27 January 2021.<ref name="MPEC-2021-A168"/><ref name="MPEC-2021-B136"/>