2747 Český Krumlov

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Template:Short description Template:Use dmy dates {{#invoke:infobox|infoboxTemplate | class = vcard | titleclass = fn org | title = 2747 Cesky Krumlov | image = {{#invoke:InfoboxImage|InfoboxImage|image=File:Český Krumlov orbit.png|upright={{#if:||1.1}}|alt=}} | caption = Orbital diagram of Český Krumlov | 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 = A. Mrkos | label3 = Discovery site | data3 = Kleť Obs. | label4 = Discovery date | data4 = 19 February 1980 | label5 = Template:Longitem | data5 =

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

| label11 = Template:Longitem | data11 = (2747) Cesky Krumlov | label12 = Pronunciation | data12 = {{#invoke:IPA|main}} | label13 = Template:Longitem | data13 = Český Krumlov
Template:Small<ref name="springer" /> | label14 = Template:Longitem | data14 = 1980 DWTemplate:·Template:Mp
Template:MpTemplate:·Template:Mp
Template:MpTemplate:·Template:Mp
1982 OM | label15 = Template:Longitem | data15 = main-beltTemplate:·Template:Small<ref name="lcdb" /> | label16 = Adjectives | data16 = | label17 = Symbol | data17 =

| 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 = 63.93 yr (23,351 days) | label25 = Earliest precovery date | data25 = | label26 = {{#switch:{{{apsis}}} |apsis|gee|barion|center|centre|(apsis)=Apo{{{apsis}}} |Ap{{#if:|{{{apsis}}}|helion}}}} | data26 = 3.4959 AU | label27 = Peri{{#if:|{{{apsis}}}|helion}} | data27 = 2.6996 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 = 3.0978 AU | label33 = Template:Longitem | data33 = | label34 = Eccentricity | data34 = 0.1285 | label35 = Template:Longitem | data35 = 5.45 yr (1,991 days) | label36 = Template:Longitem | data36 = | label37 = Template:Longitem | data37 = | label38 = Template:Longitem | data38 = 183.40° | label39 = Template:Longitem | data39 = Template:Deg2DMS / day | label40 = Inclination | data40 = 5.8182° | label41 = Template:Longitem | data41 = | label42 = Template:Longitem | data42 = 344.88° | label43 = Template:Longitem | data43 = | label44 = Template:Longitem | data44 = | label45 = Template:Longitem | data45 = 302.03° | 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

| 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:yes| Physical characteristics|Physical characteristics}}

| label71 = Dimensions | data71 = 20.62 km Template:Small<ref name="lcdb" />
Template:Val km<ref name="Nugent-2016" />
Template:Val km<ref name="Nugent-2015" />
Template:Val km<ref name="AKARI" />
Template:Val km<ref name="Masiero-2014" />
Template:Val km<ref name="WISE" />
32.63 km<ref name="SIMPS" />
Template:Val km<ref name="Masiero-2012" /> | 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:Val h<ref name="Waszczak-2015" /> | 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="Masiero-2014" /><ref name="Masiero-2012" />
Template:Val<ref name="SIMPS" />
Template:Val<ref name="WISE" />
Template:Val<ref name="Nugent-2016" />
Template:Val<ref name="AKARI" />
0.057 Template:Small<ref name="lcdb" />
Template:Val<ref name="Nugent-2015" /> | label94 = Temperature | data94 =

| data100 = {{#if:|

{{#if:|}}{{#if:|}}{{#if:|}}{{#if:|}}
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| label101 = Surface absorbed dose rate | data101 = | label102 = Surface equivalent dose rate | data102 = | label103 = Template:Longitem | data103 = X<ref name="Veres-2015" />Template:·C<ref name="lcdb" /> | label104 = Template:Longitem | data104 = | label105 = Template:Longitem | data105 = | label106 = Template:Longitem | data106 = 11.6<ref name="AKARI" /><ref name="WISE" />Template:·11.70<ref name="Nugent-2015" /><ref name="Masiero-2012" />Template:·Template:Val Template:Small<ref name="Waszczak-2015" />Template:·11.8<ref name="jpldata" />Template:·Template:Val<ref name="Veres-2015" />Template:·12.16<ref name="lcdb" /> | label107 = Template:Longitem | data107 =

| header110 = Atmosphere

| label111 = Template:Longitem | data111 = | label112 = Template:Longitem | data112 = | label113 = Composition by volume | data113 =

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2747 Český Krumlov ({{#invoke:IPA|main}}), provisional designation Template:Mp, is a carbonaceous asteroid and slow rotator from the outer regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered by Czech astronomer Antonín Mrkos at Kleť Observatory on 19 February 1980, and named for the Czech town of Český Krumlov.<ref name="springer" /><ref name="MPC-Český Krumlov" />

Orbit and classification

Český Krumlov belongs to the Hygiea family.Template:Citation needed It orbits the Sun in the outer main-belt at a distance of 2.7–3.5 AU once every 5 years and 5 months (1,991 days). Its orbit has an eccentricity of 0.13 and an inclination of 6° with respect to the ecliptic.<ref name="jpldata" />

It was first identified as Template:Mp at Almaty Observatory (Template:Small) in 1953. The body's observation arc begins four weeks later with a precovery taken at Palomar Observatory, 27 years prior to its official discovery observation at Klet Observatory.<ref name="MPC-Český Krumlov" />

Physical characteristics

Český Krumlov has been characterized as an X-type and carbonaceous C-type asteroid.<ref name="lcdb" /><ref name="Veres-2015" />

Slow rotator

In October 2010, a rotational lightcurve of Český Krumlov was obtained from photometric observations by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 438.7098 hours with a brightness variation of 0.63 magnitude (Template:Small).<ref name="Waszczak-2015" /> This makes it a very slow rotator.

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Český Krumlov measures between 22.51 and 36.33 kilometers in diameter and its surface has an albedo between 0.028 and 0.06.<ref name="Nugent-2016" /><ref name="Nugent-2015" /><ref name="AKARI" /><ref name="Masiero-2014" /><ref name="WISE" /><ref name="SIMPS" /><ref name="Masiero-2012" />

The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 20.62 kilometers with an absolute magnitude of 12.16.<ref name="lcdb" />

Naming

This minor planet was named after the historic Czech town of Český Krumlov, near to the location of the discovering Kleť Observatory.<ref name="springer" /> The approved naming citation was published by the Minor Planet Center on 29 November 1993 (Template:Small).<ref name="MPC-Circulars-Archive" />

References

Template:Reflist

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

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