14 Irene

Template:Short description Template:Use dmy dates {{#invoke:infobox|infoboxTemplate | class = vcard | titleclass = fn org | title = 14 Irene | image = {{#invoke:InfoboxImage|InfoboxImage|image=14Irene (Lightcurve Inversion).png|upright={{#if:||1.1}}|alt=}} | caption = A three dimensional model of 14 Irene from light curve inversion | headerstyle = {{#if:#D6D6D6|background-color:#D6D6D6|background-color:#E0CCFF}} | labelstyle = max-width:{{#if:||11em}}; | autoheaders = y

| header1 = Discovery

| header10 = {{#if:|Designations|Designations}}

| header20 = Orbital characteristics{{#ifeq:|yes| (barycentric)}}<ref name=jpldata>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

| data21 = | data22 = {{#if:July 14, 2004 (JD 2453200.5) |Epoch July 14, 2004 (JD 2453200.5)}} | data23 = {{#if: | Uncertainty parameter {{{uncertainty}}}}} | label24 = Observation arc | data24 = | label25 = Earliest precovery date | data25 = | label26 = {{#switch:{{{apsis}}} |apsis|gee|barion|center|centre|(apsis)=Apo{{{apsis}}} |Ap{{#if:|{{{apsis}}}|helion}}}} | data26 = Template:Cvt | label27 = Peri{{#if:|{{{apsis}}}|helion}} | data27 = Template:Cvt | 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 = 0.168 | label35 = Template:Longitem | data35 = Template:Cvt | label36 = Template:Longitem | data36 = | label37 = Template:Longitem | data37 = | label38 = Template:Longitem | data38 = 326.489° | label39 = Template:Longitem | data39 = | label40 = Inclination | data40 = 9.106° | label41 = Template:Longitem | data41 = | label42 = Template:Longitem | data42 = 86.493° | label43 = Template:Longitem | data43 = | label44 = Template:Longitem | data44 = | label45 = Template:Longitem | data45 = 96.473° | label46 = Template:Nowrap | data46 = | label47 = Satellite of | data47 = | label48 = Group | data48 = | 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 = T_Jupiter | 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}}} deg Template:\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}}} arcsec Template:\yr }} | label67 = Template:Longitem | data67 = {{#if:|{{{node_rate}}} arcsec Template:\yr}}

| header70 = Template:Anchor{{#if:yes| Physical characteristics|Physical characteristics}}

| label71 = Dimensions | data71 = Template:Nowrap<ref name=Baer2011/> | label72 = Template:Longitem | data72 = 152 km (Dunham)<ref name=jpldata/>
155 ± 6 km<ref name="FiengaEtAl2020"/> | 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 = Template:Val Template:Refn<ref name="Baer2011">Template:Cite journal</ref>
Template:Nwr | label81 = Template:Longitem | data81 = Template:Val<ref name="Baer2011"/>
2.614 ± 0.396/0.483 g/cm³<ref name="FiengaEtAl2020"/> | label82 = Template:Longitem | data82 = | label83 = Template:Longitem | data83 = | label84 = Template:Longitem | data84 = | label85 = Template:Longitem | data85 = Template:Cvt<ref name=jpldata/><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> | 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:yes |Template:Longitem |Albedo}} | data93 = 0.159<ref name=jpldata/> | label94 = Temperature | data94 =

| data100 = {{#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 = S<ref name=jpldata/> | label104 = Template:Longitem | data104 = | label105 = Template:Longitem | data105 = 8.85<ref name=AstDys-Irene>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> to 12.30 | label106 = Template:Longitem | data106 = 6.<ref name=jpldata/> | label107 = Template:Longitem | data107 = Template:Val to 0.052"

| header110 = Atmosphere

| below = {{#if:||Template:Reflist }}

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14 Irene (Template:IPAc-en) is a large main-belt asteroid, discovered by the English astronomer John Russell Hind on May 19, 1851. It is orbiting the Sun at a distance of Template:Val with a period of Template:Convert and an eccentricity of 0.168. The orbital plane is tilted at an angle of 9.1° to the plane of the ecliptic.<ref name=jpldata/>

14 Irene was named after Irēnē, a personification of peace in Greek mythology. She was one of the Horae, daughter of Zeus and Themis. The name was suggested by Sir John Herschel.<ref>Template:Cite book</ref> Hind wrote,

"You will readily discover that this name [...] has some relation to this event (the Great Industrial Exhibition) which is now filling our metropolis [London] with the talent of all civilised nations, with those of Peace, the productions of Art and Science, in which all mankind must feel an interest."

The Great Exhibition of the Works of Industry of All Nations in the Crystal Palace of Hyde Park, London, ran from May 1 until October 18, 1851.

Hind suggested that the symbol for the asteroid should be "A dove carrying an olive-branch, with a star on its head",<ref>Template:Cite journal</ref> but it was hardly drawn before the use of graphical symbols to represent asteroids was dropped entirely.<ref>When did the asteroids become minor planets? Template:Webarchive</ref> It is in the pipeline for Unicode 17.0 as U+1CEC7 𜻇 (File:Irene symbol (fixed width).svg).<ref name=astunicode>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name=pipeline>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Observations from 2007 indicate that the rotation pole of 14 Irene lies close to the plane of the ecliptic, indicating it has an obliquity close to 90°.<ref name=Pilcher2009>Template:Cite journal</ref> The fairly flat Irenian lightcurves indicate somewhat spherical proportions.Template:Citation needed This is a stony S-type asteroid with a mean diameter of around 152 km.<ref name=Baer2011/><ref name=jpldata/> It is spinning with a rotation period of 15 hours.<ref name=Pilcher2009/>

There have been seven reported stellar occultation events by Irene. The best is a three chord event observed in 2013.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

NotesEdit

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ReferencesEdit

Template:Reflist

Gould, B.A., New planet, Astronomical Journal, Vol. 2, iss. 27, p. 22, June 1851

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{{#invoke:citation/CS1|citation

|CitationClass=web }} (displays Elong from Sun and V mag for 2011)

Template:Minor planets navigator {{#invoke:Navbox|navbox}} Template:Authority control

14 Irene

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