161 Athor

Template:Short description Template:Use dmy dates {{#invoke:infobox|infoboxTemplate | class = vcard | titleclass = fn org | title = 161 Athor | image = {{#invoke:InfoboxImage|InfoboxImage|image=161Athor (Lightcurve Inversion).png|upright={{#if:||1.1}}|alt=}} | caption = A three-dimensional model of 161 Athor based on its light curve. | headerstyle = {{#if:#D6D6D6|background-color:#D6D6D6|background-color:#E0CCFF}} | labelstyle = max-width:{{#if:||11em}}; | autoheaders = y

| header1 = Discovery<ref name="MPC">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

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

| label11 = Template:Longitem | data11 = (161) Athor | label12 = Pronunciation | data12 = Template:IPAc-en,<ref>Noah Webster (1884) A Practical Dictionary of the English Language</ref> Template:IPAc-en<ref>Template:OED</ref> | label13 = Template:Longitem | data13 = Hathor | label14 = Template:Longitem | data14 = A876 HA; 1899 TA;
1961 PF; Template:Mp | label15 = Template:Longitem | data15 = Main belt<ref name="jpldata">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> | label16 = Adjectives | data16 = | label17 = Symbol | data17 =

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

| data21 = | data22 = {{#if:31 July 2016 (JD 2457600.5) |Epoch 31 July 2016 (JD 2457600.5)}} | data23 = {{#if:0 | Uncertainty parameter 0}} | label24 = Observation arc | data24 = 116.50 yr (42551 d) | label25 = Earliest precovery date | data25 = | label26 = {{#switch: |apsis|gee|barion|center|centre|(apsis)=Apo |Ap{{#if:||helion}}}} | data26 = Template:Convert | label27 = Peri{{#if:||helion}} | data27 = Template:Convert | label28 = Peri{{#if:||apsis}} | data28 = | label29 = {{#switch: |helion|astron=Ap |Apo{{#if:||apsis}}}} | data29 = | label30 = Periastron | data30 = | label31 = Apoastron | data31 = | label32 = Template:Longitem | data32 = Template:Convert | label33 = Template:Longitem | data33 = | label34 = Eccentricity | data34 = 0.137237 | label35 = Template:Longitem | data35 = 3.67 yr (1340.6 d) | label36 = Template:Longitem | data36 = | label37 = Template:Longitem | data37 = | label38 = Template:Longitem | data38 = 348.807° | label39 = Template:Longitem | data39 = Template:Deg2DMS / day | label40 = Inclination | data40 = 9.05986° | label41 = Template:Longitem | data41 = | label42 = Template:Longitem | data42 = 18.6090° | label43 = Template:Longitem | data43 = | label44 = Template:Longitem | data44 = 2024-Jan-13 | label45 = Template:Longitem | data45 = 295.007° | 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:Val<ref name="jpldata"/>
Mean diameter<ref name="SIMPS"/>
Template:Val
circular fit<ref name="Dunham">{{#invoke:citation/CS1|citation |CitationClass=web }}Template:Cbignore</ref> | label72 = Template:Longitem | data72 = | 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 = Template:Convert<ref name="jpldata"/>
7.281 ± 0.001 hours<ref>Template:Cite journal</ref>
7.288 ± 0.007 hours<ref>Template:Cite journal</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 = Template:Val<ref name="jpldata"/><ref name="SIMPS">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> | label94 = Temperature | data94 =

| data100 = {{#if:|

Surface temp.	min	mean	max
{{{temp_name1}}}
{{{temp_name2}}}
{{{temp_name3}}}
{{{temp_name4}}}

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| label101 = Surface absorbed dose rate | data101 = | label102 = Surface equivalent dose rate | data102 = | label103 = Template:Longitem | data103 = M<ref name="Neese">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> | label104 = Template:Longitem | data104 = | label105 = Template:Longitem | data105 = | label106 = Template:Longitem | data106 = 9.15<ref name="jpldata"/><ref name="Tholen">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> | label107 = Template:Longitem | data107 =

| header110 = Atmosphere

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

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161 Athor is an M-type Main belt asteroid that was discovered by James Craig Watson on April 19, 1876, at the Detroit Observatory<ref name="MPC"/> and named after Hathor, an Egyptian fertility goddess. It is the namesake of a proposed Athor asteroid family, estimated to be ~3 billion years old.<ref name=Delbo2019/>

Photometric observations of the minor planet in 2010 gave a rotation period of Template:Val with an amplitude of Template:Val in magnitude. This result is consistent with previous determinations.<ref name=Pilcher2011/> An occultation by Athor was observed, on October 15, 2002, showing an estimated diameter of Template:Convert.<ref name="Dunham"/> The spectra is similar to that of carbonaceous chondrites, with characteristics of ferric oxides and little or no hydrated minerals.<ref name=Busarev2002/>

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