2063 Bacchus

Template:Short description Template:Use dmy dates {{#invoke:infobox|infoboxTemplate | class = vcard | titleclass = fn org | title = 2063 Bacchus | image = {{#invoke:InfoboxImage|InfoboxImage|image=|upright={{#if:||1.1}}|alt=}} | caption = | headerstyle = {{#if:#FFC2E0|background-color:#FFC2E0|background-color:#E0CCFF}} | labelstyle = max-width:{{#if:||11em}}; | autoheaders = y

| header1 = Discovery<ref name="MPC-Bacchus" />

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

| 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 = 39.10 yr (14,282 days) | label25 = Earliest precovery date | data25 = | label26 = {{#switch:{{{apsis}}} |apsis|gee|barion|center|centre|(apsis)=Apo{{{apsis}}} |Ap{{#if:|{{{apsis}}}|helion}}}} | data26 = 1.4545 AU | label27 = Peri{{#if:|{{{apsis}}}|helion}} | data27 = 0.7013 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 = 1.0779 AU | label33 = Template:Longitem | data33 = | label34 = Eccentricity | data34 = 0.3494 | label35 = Template:Longitem | data35 = 1.12 yr (409 days) | label36 = Template:Longitem | data36 = | label37 = Template:Longitem | data37 = | label38 = Template:Longitem | data38 = 113.13° | label39 = Template:Longitem | data39 = Template:Deg2DMS / day | label40 = Inclination | data40 = 9.4331° | label41 = Template:Longitem | data41 = | label42 = Template:Longitem | data42 = 33.103° | label43 = Template:Longitem | data43 = | label44 = Template:Longitem | data44 = | label45 = Template:Longitem | data45 = 55.315° | 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 = 0.0677 AUTemplate:·26.4 LD | 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="Benner-1999" />
Template:Val<ref name="jpldata" /> | label72 = Template:Longitem | data72 = Template:Val Template:Small<ref name="Benner-1999" />
Template:Val km<ref name="Nugent-2016" />
Template:Val Template:Small<ref name="lcdb" /> | 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<ref name="Warner-2015r" />
Template:Val<ref name="Pravec-1998b" />
Template:Val<ref name="Benner-1999" /> | 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="Nugent-2016" />
0.20 Template:Small<ref name="lcdb" />
0.33Template:± Template:Small
0.56Template:± Template:Small<ref name="Benner-1999" /> | label94 = Temperature | data94 =

| data100 = {{#if:|

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

}}

| header110 = Atmosphere

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

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2063 Bacchus, provisional designation Template:Mp, is a stony asteroid and near-Earth object of the Apollo group, approximately 1 kilometer in diameter. The contact binary was discovered on 24 April 1977, by American astronomer Charles Kowal at the Palomar Observatory in California, United States. It was named after Bacchus from Roman mythology.<ref name="springer" /><ref name="MPC-Bacchus" />

Orbit and classificationEdit

Bacchus orbits the Sun at a distance of 0.7–1.5 AU once every 1 years and 1 month (409 days). Its orbit has an eccentricity of 0.35 and an inclination of 9° with respect to the ecliptic.<ref name="jpldata" /> The asteroid's observation arc begins with its official discovery observation at Palomar.<ref name="MPC-Bacchus" /> Due to its eccentric orbit, it is also a Venus-crosser.

ApproachesEdit

Bacchus has an Earth minimum orbital intersection distance of Template:Convert, which corresponds to 26.4 lunar distances.<ref name="jpldata" /> On 31 March 1996, it passed Template:Convert from Earth.<ref name="jpldata" />

Physical characteristicsEdit

In the SMASS classification, Bacchus is a Sq-type, that transitions from the common S-type asteroids to the Q-type asteroids.<ref name="jpldata" /> It is a contact binary with bilobate shape.

In March 1996 radar observations were conducted at the Goldstone Observatory under the direction of JPL scientists Steven Ostro and Lance Benner, allowing the construction of a model of the object.<ref name="Benner-1999" /> Optical observations were conducted by Petr Pravec, Marek Wolf, and Lenka Šarounová during March and April 1996. It was also photometrically observed by American astronomer Brian Warner in 2015.<ref name="Warner-2015r" /><ref name="Pravec-1998b" /><ref name="Pravec-2012b" />

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Bacchus measures 1.03 kilometers in diameter and its surface has an albedo of 0.19.<ref name="Nugent-2016" /> The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and derives a diameter of 1.05 kilometers based on an absolute magnitude of 17.25.<ref name="lcdb" />

NamingEdit

This minor planet was named for the Roman god Bacchus (Dionysus).The official Template:MoMP was published by the Minor Planet Center on 1 August 1978 (Template:Small).<ref name="springer" /><ref name="DoMP-Circular-dates" />

ReferencesEdit

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