Ontology: IVOAO

accretion adaption address adjustment aeronomy afterglow age air airglow airPollution algebra almanac amplitude analysis angle angularDiameter angularRadius angularSeparation angularSize anisotropy annualEquation anomaly anthropicPrinciple anthropocentrism anthropomorphism antinode arc archivist area AristotelianPhysics arrayProcessor article astroBiology astronomicalGeodesy astrophysics atlas atmosphere atmosphericDensity atmosphericRadiation atmosphericTide atomicTime aurora auroralArc auroralJet author autoCorrelation autumnalEquinox axialRatio axis azimuth background backgroundNoise basin BesselianEpoch BesselianYear biologist biology birthRate blinking book bridge brightness brightnessDistribution bubble calculation calculus calendar calendarYear capture catalog catastropheTheory cause center chapter chemicalEvolution chemist chemistry civilTime classification cloud clumping cluster clustering coating coefficient coInvestigator collapse collision color colorEquation colorIndex 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halation halo HdCurve height heliocentricJulianDate highState history horizon humanEvent hypothesis identification illumination imageProcessing imageReconstruction induction inertialCoordinateSystem inhomogenity instability institution integer interaction interior invention inventor ionosphere isotropy journal JulianCalendar JulianDate JulianEpoch JulianYear laserRanging latitude latitudeDetermination latitudeVariation length life lifetime lightPollution lightYear lineIdentification lineOfSight liquid lithosphere location locationBehind locationBetween locationInFront longitude loop lowState lunarLaserRanging magneticAnomaly magneticDisturbance magneticField magneticStorm magnetosphericSubstorm majorAxis mantle map mascon massExchange massFlow massRatio math mathematicalAnalysis mathematicalConcept mathematicalConstant mathematicalModel mathematician mathematics mathEntity MaunderMinimum maximum maximumEntropyMethod meanEquinox meanSolarTime measurement mechanicalProperty memoryLocation merger meridian mesopause mesosphere meteorology metonicCycle microprocessor microturbulence mineralDeposit mineralogy minimum minorAxis model modification modulation MonteCarloTechnique morphology motion mottle nadir nauticalAlmanac neighborhood nightVision noctilucentCloud noise nomenclature nonThermalParticle northernHemisphere number numericalAnalysis numericalIntegration numericalMethod numericalSimulation observation OccamsRazor oceanography oceanTide onLineSystem opticalAberration opticalProperty orbit organization orientation origin outdatedBelief outgassing ozoneLayer paleomagnetism paradox parallelComputer parameter particleEscape particlePropagation period periodChange periodDetermination periodOfRepetion peripheral person perturbation perturbationTheory petrology phaseAngle phaseDefect phaseDifference phaseEffect phaseError phaseFunction phaseRotator phaseShift phaseWave physicalObject physicalObjectMeasurement physics pitchAngle planetarium plasmapause point pointingAccuracy pointingError polarAxis polarCap polarDiagram polarMotion polarOrbit polarRegion polarTide pole pollution position precision prediction principalInvestigator principle problem profile progenitor program project propagation publication PurkinjeEffect purpose quadrature quantity radiationMeasurement raidArray rapidOscillation ratio ray reasoningProcess reductionMethod reference region regressionOfNode relaxationTime research reseaux residualIntensity ring riseTime sampling scaleHeight science scienceInstitution scientificField scientist searchForExtraterrestrialLife season seasonalPhenomena seismology selectionEffect selectiveAbsorption selenology semimajorAxis semiminorAxis separation set setting shell siderealTime siderealYear signalAnalysis signalDetection signalProcessing signalToNoiseRatio simulation size sky slope solid solstice southernHemisphere southPole spaceDebris spaceExploration spaceGeodesy spaceLaw spaceMotion spacePollution spaceProbe spaceScienceInstitution spaceVehicle sphericalCoordinate SphSimulation stability standardCandle standardEpoch statisticalRelation statistics stratopause stratosphere structure summerSolstice sunlight supportSystem surfaceArea surfaceProperty survey symbol symmetry synchrotronRadiation system syzygy tail taxonomy temperatureZone terrestrialLatitude terrestrialLongitude terrestrialRadiation testing theory theoryRelatedConcept thermalHistory thermosphere thickness tide time timeStandard timeUnit topography torus trajectory transformation transitionRegion trigonometry tropicalYear TropicOfCancer TropicOfCapricorn tropopause troposphere turbidity turbulence turbulenceEarthAtmosphere turbulenceStarAtmosphere twilight twoColorDiagram unit UniversalTime unsharpMasking upperAtmosphere Url Ut1 variability ventilation vernalEquinox virtualObservatory vision visualAcuity volcano volume webPage width window winterSolstice year zenith zenithDistance zenithHourlyRate zeroPoint