The Wolfram Language provides seamless access to the curated and continuously updated Wolfram Knowledgebase used in Wolfram|Alpha—which includes a wide range of types of data for astronomical science. Free-form linguistics provide a convenient mechanism for accessing all available data; more common categories also have specific associated Wolfram Language functions.

Sunrise, Sunset — time of sunrise, sunset for any location and date

DaylightQ  ▪  DayHemisphere  ▪  NightHemisphere  ▪  DayNightTerminator

SunPosition, MoonPosition — computed positions of Sun, Moon in the sky

MoonPhase — phase of the Moon, given as numbers, icons, etc.

SolarEclipse, LunarEclipse — detailed solar and lunar eclipse information

SiderealTime  ▪  LocalTime  ▪  JulianDate  ▪  FromJulianDate

Solar System Objects

PlanetData — static and dynamic properties of solar system planets

PlanetaryMoonData  ▪  MinorPlanetData  ▪  CometData  ▪  SolarSystemFeatureData

Stars, Galaxies, etc.

StarData — positions and properties of all stars in standard catalogs

ConstellationData  ▪  PulsarData  ▪  ExoplanetData

GalaxyData  ▪  StarClusterData

SatelliteData — properties and real-time computed positions of artificial satellites

GeoVisibleRegion — region of Earth visible from a point in space

DeepSpaceProbeData — planetary and deep space probes

MeteorShowerData  ▪  MannedSpaceMissionData

() — request data using free-form linguistics

EntityValue — general access to values of properties for all types of entities

Astrophysical Computations

FormulaData — wide variety of astrophysical formulas

ElementData — properties of chemical elements

PlanckRadiationLaw — blackbody radiation

UniverseModelData — cosmological distances, structure and evolution

Unit Conversions

UnitConvert  ▪  FromDMS  ▪  DMSList  ▪  DMSString