Planets beyond the solar system.

Entity["Exoplanet",name] or

represents an entity of type "Exoplanet".

[prop]

gives the value of a specified property.

[{propi,}]

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["Exoplanet",{propispeci,}]

represents a class of entities with values of propi defined by speci.

Sample Entities

Sample Entity Classes

Properties

  • AlphanumericNamealphanumeric name
    AlternateNamesalternate names
    Altitudealtitude
    AltitudeTransitnext transit altitude
    ApparentAltitudeapparent altitude
    AverageOrbitDistanceaverage orbit distance
    Azimuthazimuth
    AzimuthRiseazimuth at rise
    AzimuthSetazimuth at set
    BooleanRiseabove the horizon
    Classesclasses
    Componentcomponent
    Constellationconstellation
    DailyTimeAboveHorizondaily time above horizon
    Declinationdeclination
    Densitymean density
    Diameteraverage diameter
    DiameterIntervaldiameter interval
    DiscoveryMethoddiscovery method
    DiscoveryYeardiscovery year
    DistanceFromEarthdistance from Earth
    DistanceFromSundistance from Sun
    DistanceIntervaldistance interval
    DurationTransittransit duration
    Eccentricityorbital eccentricity
    EccentricityIntervalorbital eccentricity interval
    EscapeVelocityescape velocity
    GalacticLatitudegalactic latitude
    GalacticLongitudegalactic longitude
    GravitationalConstantMassProductgravitational constant mass product
    Gravitygravity
    GreenwichHourAngleGreenwich hour angle
    HelioCoordinatesheliocentric XYZ coordinates
    Inclinationorbital inclination
    InclinationIntervalorbital inclination interval
    LocalHourAnglelocal hour angle
    MajorAxisorbital major axis
    Massmass
    MassIntervalmass interval
    MaximalAltitudeTimenext maximum altitude time
    MinorAxisorbital minor axis
    MomentOfInertiarotational moment of inertia
    Namename
    ObjectTypeobject type
    OrbitCenterorbit center
    OrbitCircumferenceorbit circumference
    OrbitPeriodorbital period
    OrbitPeriodIntervalorbital period interval
    PeriapsisLongitudelongitude of periapsis ϖ
    PeriapsisLongitudeIntervallongitude of periapsis interval
    PlanetaryEquilibriumTemperatureplanetary equilibrium temperature
    PlanetaryEquilibriumTemperatureIntervalplanetary equilibrium temperature interval
    PrimaryStarKSemiamplitudeprimary star K semiamplitude
    Radiusaverage radius
    RadiusIntervalaverage radius interval
    RightAscensionright ascension
    RiseTimenext rise
    RocheLimitRoche limit
    SemimajorAxisorbital semimajor axis
    SemimajorAxisIntervalorbital semimajor axis interval
    SemiminorAxisorbital semiminor axis
    SetTimenext set
    SiderealHourAnglesidereal hour angle
    SurfaceAreasurface area
    TransitDepthtransit depth
    TransitTimenext transit time
    Volumevolume

Details

  • "Exoplanet" entities include a large collection of confirmed planets beyond the solar system.
  • "Exoplanet" entity classes include groups based primarily on size classification, e.g. "super-Earths", which may also include proximity to host stars, e.g. "hot Jupiters".
  • Some properties are available for the "Exoplanet" entity type as a whole and can be given using the form EntityValue["Exoplanet",property]. Such properties include:
  • "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["Exoplanet",property,annotation]:
  • "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]:
  • "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

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Basic Examples  (5)

Use for discovery:

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Find the mass of an exoplanet:

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Get a list of exoplanets in a specified class:

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Retrieve a dataset of all available properties for an entity:

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Find the 3 least massive exoplanets:

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Scope  (4)

Applications  (7)

Relations to Other Entity Types  (1)