Planet
Related Interpreter »Planets in our solar system.
[prop]
gives the value of a specified property.
[{prop1,…}]
gives the value of a list of properties.
[prop,{qualivali,…}]
gives the value of a specified property modified by qualifier rules quali->vali.
[Dated[prop,date]]
gives the value of a property associated with a particular date specification.
EntityClass["Planet",{propispeci,…}]
represents a class of entities with values of propi defined by speci.
Sample Entities
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Sample Entity Classes
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Properties
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AbsoluteMagnitudeH absolute magnitude H Age age Albedo albedo AlphanumericName alphanumeric name AlternateNames alternate names Altitude altitude AltitudeMaximum next maximum altitude AngularDiameterFromEarth angular diameter AngularRadiusFromEarth angular radius Aphelion largest distance from the Sun Apoapsis largest distance from Sun ApoapsisTime next apoapsis time ApoapsisTimeLast last apoapsis time ApparentAltitude apparent altitude ApparentMagnitude apparent magnitude AscendingNodeLongitude longitude of ascending node Ω AtmosphericComposition atmospheric composition AtmosphericPressure atmospheric pressure AtmosphericScaleHeight atmospheric scale height AuthalicDiameter authalic diameter AuthalicRadius authalic radius AverageDistanceFromEarth average distance from Earth AverageOrbitalCentripetalForce average orbital centripetal force AverageOrbitDistance average orbit distance AverageOrbitVelocity average orbit velocity AverageTemperature average temperature AverageVelocityAroundSun average heliocentric velocity Azimuth azimuth BooleanRise above the horizon Classes classes Color color Constellation constellation CylindricalEquidistantTexture cylindrical equidistant texture DailyTimeAboveHorizon daily time above horizon Declination declination Density mean density Diameter average diameter Discoverers discoverers DiscoveryDate discovery date DistanceFromEarth distance from Earth DistanceFromSun distance from Sun EccentricAnomaly eccentric anomaly Eccentricity orbital eccentricity EffectiveTemperature effective temperature EntityClasses entity classes EntityTypeList entity type list EquatorialAngularVelocity equatorial angular velocity EquatorialCircumference equatorial circumference EquatorialDiameter equatorial diameter EquatorialFrequency equatorial frequency EquatorialRadius equatorial radius EquatorialVelocity equatorial velocity EscapeVelocity escape velocity FarthestPlanet farthest planet GalacticLatitude galactic latitude GalacticLongitude galactic longitude GeocentricEclipticLatitude geocentric ecliptic latitude GeocentricEclipticLongitude geocentric ecliptic longitude Glyph astrological symbol GravitationalConstantMassProduct gravitational constant mass product Gravity gravity GreenwichHourAngle Greenwich hour angle HeliocentricEclipticLatitude heliocentric ecliptic latitude HeliocentricEclipticLongitude heliocentric ecliptic longitude HelioCoordinates heliocentric XYZ coordinates HelioVelocityVector heliocentric velocity vector HillRadius Hill radius Image image Inclination orbital inclination LocalHourAngle local hour angle MajorAxis orbital major axis Mass mass MaximalAltitudeTime next maximum altitude time MaximumOrbitalCentripetalForce maximum orbital centripetal force MaximumTemperature maximum temperature MeanAnomaly mean anomaly MeanMotion mean motion MinimumOrbitalCentripetalForce minimum orbital centripetal force MinimumTemperature minimum temperature MinorAxis orbital minor axis MomentOfInertia rotational moment of inertia MoonCount number of moons NAIFIdentifier NAIF identifier Name name NearestPlanet nearest planet NorthPoleDeclination north pole declination NorthPoleRightAscension north pole right ascension ObjectType object type Oblateness oblateness Obliquity obliquity OppositionTimeLast last opposition time OppositionTimeNearest nearest opposition time OppositionTimeNext next opposition time OrbitalAngularMomentum orbital angular momentum OrbitalCentripetalForce orbital centripetal force OrbitalKineticEnergy orbital kinetic energy OrbitalMomentOfInertia orbital moment of inertia OrbitCenter orbit center OrbitCircumference orbit circumference OrbitPath orbit path OrbitPeriod orbital period OrbitRules orbit rules Periapsis smallest distance from Sun PeriapsisArgument argument of periapsis ω PeriapsisLongitude longitude of periapsis ϖ PeriapsisTime next periapsis time PeriapsisTimeLast last periapsis time Perihelion nearest distance from the Sun PolarCircumference polar circumference PolarDiameter polar diameter PolarRadius polar radius Radius average radius RetrogradeApparentMotionQuery apparent direction RightAscension right ascension RingSystemInnerDiameter ring system inner diameter RingSystemInnerRadius ring system inner radius RingSystemOuterDiameter ring system outer diameter RingSystemOuterRadius ring system outer radius RingSystemThickness ring system thickness RingSystemWidth ring system width RiseTime next rise RocheLimit Roche limit RotationalAngularMomentum rotational angular momentum RotationPeriod rotation period Satellites known satellites SemimajorAxis orbital semimajor axis SemiminorAxis orbital semiminor axis SetTime next set Shape shape SiderealHourAngle sidereal hour angle SolarConjunctionTimeLast last solar conjunction time SolarConjunctionTimeNearest nearest solar conjunction time SolarConjunctionTimeNext next solar conjunction time SolarDay solar day SolidAngleFromEarth solid angle SphereOfInfluenceRadius sphere of influence radius StationaryOrbitRadius stationary orbit radius StationaryOrbitSpeed stationary orbit speed SurfaceArea surface area TexturedSurface 3D graphic TrueAnomaly true anomaly VelocityAroundSun instantaneous heliocentric velocity Volume volume VolumetricDiameter volumetric diameter VolumetricRadius volumetric radius ZenithAngle zenith angle
Details
- "Planet" entities include all eight planets recognized by the International Astronomical Union.
- "Planet" entity classes include inner and outer planets in addition to ringed planets.
- Some properties are available for the "Planet" entity type as a whole and can be given using the form EntityValue["Planet",property]. Such properties include:
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"Properties" the list of available properties "PropertyCanonicalNames" the standard names of available properties "SampleEntities" a sample list of available entities (typically of length 10) "SampleEntityClasses" a sample list of available entity classes (typically of length 10) "EntityCount" number of entities available "Entities" the list of available entities "EntityCanonicalNames" the standard names of available entities "EntityClasses" the list of available entity classes "EntityClassCanonicalNames" the standard names of available entity classes "PropertyClasses" the list of available property classes "PropertyClassCanonicalNames" the standard names of available property classes "PropertyCount" number of properties available - The following annotations can be used in the third argument of EntityValue["Planet",property,annotation]:
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"Source" source information for the property "Date" the date associated with the entity-property value (if any) "EntityAssociation" an association of entities and entity-property values "PropertyAssociation" an association of properties and entity-property values "EntityPropertyAssociation" an association in which the specified entities are keys, and values are a nested association of properties and entity-property values "PropertyEntityAssociation" an association in which the specified properties are keys, and values are a nested association of entities and entity-property values "Dataset" a dataset in which the specified entities are keys, and values are an association of property names and entity-property values - The following annotations can be used in the second argument of EntityValue[property,annotation]:
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"Qualifiers" the list of possible qualifiers for the property "QualifierValues" the list of possible values that can be given to each qualifier "DefaultQualifierValues" the list of default values for the property's qualifiers "Description" a brief textual description of the property "Definition" a detailed textual definition of the property "PhysicalQuantity" the physical quantity associated with the entity-property value "Unit" the unit associated with the entity-property value - A qualifier value of Automatic indicates that an applicable format of values can be used; e.g. for the "Date" qualifier, this includes a proper date or date span.
Examples
open allclose allBasic Examples (10)
for discovery:Scope (18)
Orbital eccentricity for each planet:
Orbital periods in sidereal years:
Rules for the orbital elements of Earth:
The known satellites of Neptune:
Number of known satellites for each planet:
Compute positions for Venus in the morning sky for 2009:
Implicit Entity Classes (1)
Property Classes (1)
Qualifiers (5)
Some properties accept qualifiers:
The "Location" qualifier, which specifies the location of the observer, can accept an explicit GeoPosition, location-based Entity objects or queries that evaluate to one of these:
Dates (4)
Date qualifiers can accept an explicit DateObject or queries that evaluate to a DateObject:
Date qualifiers can also be specified using Dated:
Compute the ecliptic path for a planet over the course of a year:
The paths for the visible planets:
The distance from Earth to the visible planets over a year:
The apparent magnitude of the visible planets as viewed from Earth over a year:
Applications (2)
Relations to Other Entity Types (3)
"Planet" entities have natural satellites from the "PlanetaryMoon" domain:
Atmospheric composition is specified using "Chemical" entities:
"Planet" entities can be combined with "SolarSystemFeature" entities to create maps with labeled features:
Planet Source Information