2985 Shakespeare
Template:Short description Template:Use dmy dates {{#invoke:infobox|infoboxTemplate | class = vcard | titleclass = fn org | title = 2985 Shakespeare | image = {{#invoke:InfoboxImage|InfoboxImage|image=002985-asteroid shape model (2985) Shakespeare.png|upright={{#if:||1.1}}|alt=}} | caption = Shakespeare modeled from its lightcurve | headerstyle = {{#if:#D6D6D6|background-color:#D6D6D6|background-color:#E0CCFF}}; color:inherit; | labelstyle = max-width:{{#if:||11em}}; | autoheaders = y
| header1 = Discovery<ref name="jpldata" />
| label2 = Discovered by | data2 = E. Bowell | label3 = Discovery site | data3 = Anderson Mesa Stn. | label4 = Discovery date | data4 = 12 October 1983 | label5 = Template:Longitem | data5 =
| header10 = {{#if:|Designations|Designations}}
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| data11 = (2985) Shakespeare
| label12 = Pronunciation
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| data13 = William Shakespeare
Template:Small<ref name="springer" />
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| data14 = Template:MpTemplate:·1962 JJ
1976 GVTemplate:·Template:Mp
Template:MpTemplate:·Template:Mp
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| data15 = main-beltTemplate:·Koronis<ref name="lcdb" />
| label16 = Adjectives
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| label17 = Symbol
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| header20 = Orbital characteristics{{#ifeq:|yes| (barycentric)}}<ref name="jpldata" />
| data21 = | data22 = {{#if:4 September 2017 (JD 2458000.5) |Epoch 4 September 2017 (JD 2458000.5)}} | data23 = {{#if:0 | Uncertainty parameter 0}} | label24 = Observation arc | data24 = 54.68 yr (19,971 days) | label25 = Earliest precovery date | data25 = | label26 = {{#switch:{{{apsis}}} |apsis|gee|barion|center|centre|(apsis)=Apo{{{apsis}}} |Ap{{#if:|{{{apsis}}}|helion}}}} | data26 = 2.9783 AU | label27 = Peri{{#if:|{{{apsis}}}|helion}} | data27 = 2.7184 AU | 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 = 2.8483 AU | label33 = Template:Longitem | data33 = | label34 = Eccentricity | data34 = 0.0456 | label35 = Template:Longitem | data35 = 4.81 yr (1,756 days) | label36 = Template:Longitem | data36 = | label37 = Template:Longitem | data37 = | label38 = Template:Longitem | data38 = 87.549° | label39 = Template:Longitem | data39 = Template:Deg2DMS / day | label40 = Inclination | data40 = 2.6496° | label41 = Template:Longitem | data41 = | label42 = Template:Longitem | data42 = 34.228° | label43 = Template:Longitem | data43 = | label44 = Template:Longitem | data44 = | label45 = Template:Longitem | data45 = 277.66° | 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 = TJupiter | data59 =
| header60 = Proper orbital elements
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| header70 = Template:Anchor{{#if:yes| Physical characteristics|Physical characteristics}}
| label71 = Dimensions
| data71 =
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| data72 = 10.31 km Template:Small<ref name="lcdb" />
Template:Val km<ref name="WISE" /><ref name="Masiero-2011" />
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| label76 = Flattening
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| label77 = Circumference
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| label79 = Volume
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| label80 = Mass
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| data85 = Template:Val<ref name="Waszczak-2015" />
Template:Val h<ref name="Slivan-2008" />
Template:Val h<ref name="Chang-2015" />
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| label93 = {{#if:yes |Template:Longitem |Albedo}}
| data93 = 0.24 Template:Small<ref name="lcdb" />
Template:Val<ref name="WISE" /><ref name="Masiero-2011" />
| label94 = Temperature
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{{#if:|}}{{#if:|}}{{#if:|}}{{#if:|}}| Surface temp. | min | mean | max |
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| label101 = Surface absorbed dose rate | data101 = | label102 = Surface equivalent dose rate | data102 = | label103 = Template:Longitem | data103 = S<ref name="lcdb" /> | label104 = Template:Longitem | data104 = | label105 = Template:Longitem | data105 = | label106 = Template:Longitem | data106 = Template:Val Template:Small<ref name="Waszczak-2015" />Template:·Template:Val Template:Small<ref name="Chang-2015" />Template:·12.0<ref name="WISE" />Template:·12.1<ref name="jpldata" /><ref name="lcdb" /> | label107 = Template:Longitem | data107 =
| header110 = Atmosphere
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2985 Shakespeare (prov. designation: Template:Mp) is a stony Koronian asteroid from the outer region of the asteroid belt. It was discovered on 12 October 1983, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona, and later named after William Shakespeare.<ref name="springer" /><ref name="MPC-Shakespeare" /> The presumed S-type asteroid has a rotation period of 6.1 hours and measures approximately Template:Convert in diameter.
Classification and orbit
The S-type asteroid is a member of the Koronis family, a group consisting of about 200 known bodies. It orbits the Sun in the outer main-belt at a distance of 2.7–3.0 AU once every 4 years and 10 months (1,756 days). Its orbit has an eccentricity of 0.05 and an inclination of 3° with respect to the ecliptic.<ref name="jpldata" /> It was first identified as Template:Mp at Goethe Link Observatory in 1962. The body's observation arc begins with its identification Template:Mp at Crimea–Nauchnij, 7 years prior to its official discovery observation at Anderson Mesa.<ref name="MPC-Shakespeare" />
Naming
This minor planet was named after William Shakespeare (1564–1616), the English renaissance dramatist and poet.<ref name="springer" /> The approved naming citation was published by the Minor Planet Center on 29 September 1985 (Template:Small).<ref name="MPC-Circulars-Archive" />
Physical characteristics
Rotation period and poles
Three different rotational lightcurves, obtained from photometric observations taken at the Palomar Transient Factory and a group of seven observatories, respectively, found a concurring rotation period of 6.06–6.08 hours with a brightness variation between 0.37 and 0.53 magnitude (Template:Small).<ref name="Waszczak-2015" /><ref name="Slivan-2008" /><ref name="Chang-2015" />
Diameter and albedo
According to the space-based NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the body has an albedo of 0.26 and measures 10.5 kilometers in diameter,<ref name="WISE" /><ref name="Masiero-2011" /> while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for members of the Koronis family of 0.24 and calculates a diameter of 10.3 kilometers with an absolute magnitude of 12.1.<ref name="lcdb" />
References
External links
- Lightcurve Database Query (LCDB), at www.minorplanet.info
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Template:AstDys
- Template:JPL small body
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