{ "schemaVersion": 1, "source": "https://ssd.jpl.nasa.gov/planets/approx_pos.html ; https://ssd.jpl.nasa.gov/planets/phys_par.html ; https://nssdc.gsfc.nasa.gov/planetary/factsheet/", "notes": "Keplerbanor med JPL J2000-element och sideriska perioder. Epok 2000-01-01 12:00 UTC (approximation av J2000 TT). Fasta tvåkroppsbanor, utan sekulära störningar, precession eller N-kroppsintegration; jordens bana approximeras med Earth/Moon-barycentrum. Rotationstid anges positivt om den följer den lutade axelns riktning: Venus och Uranus får retrograd rotation genom axialTiltDegrees > 90, inte dubbelt negativ rotationstid. RotationDegrees och poleLongitudeDegrees är justerbara visuella epokfaser, inte IAU-kalibrerade meridianer. Gasjättars rotation avser en representativ siderisk period; väder har separat vind. Radier/material/atmosfärer behåller spelbara visuella modeller.", "systems": [ { "id": "sol", "name": "Vårt solsystem", "sector": { "x": 0, "y": 0, "z": 0 }, "seed": 1, "centerOffsetMeters": [ 0, 0, 0 ], "stars": [ { "id": "sun", "name": "Solen", "seed": 100, "positionMeters": [ 0, 0, 0 ], "radiusMeters": 695700000, "luminositySolar": 1.0, "color": [ 1.0, 0.94, 0.85 ], "glow": { "enabled": true, "intensity": 2.4, "referenceDistanceAu": 1, "distanceFalloff": 0.65, "apparentRadiusMultiplier": 4.5, "minimumCorePixels": 5.0, "haloRadiusDegrees": 3.2, "haloStrength": 0.85, "rayCount": 8, "rayLengthDegrees": 12, "raySharpness": 90, "rayStrength": 2.1, "ghostStrength": 0.04, "ghostSpacing": 0.42, "chromaticAberration": 0.08 }, "massKg": 1.98847e+30 } ], "planets": [ { "id": "mercury", "name": "Merkurius", "hostStarId": "sun", "seed": 101, "description": "Minsta planeten. Stenig yta och nästan ingen atmosfär.", "radiusMeters": 2439700, "axialTiltDegrees": 0.034, "rotationDegrees": 15, "orbit": { "semiMajorAxisAu": 0.38709927, "eccentricity": 0.20563593, "inclinationDegrees": 7.00497902, "ascendingNodeDegrees": 48.33076593, "periapsisDegrees": 29.12703035, "meanAnomalyDegrees": 174.79252722, "periodDays": 87.96925717 }, "surfaceType": "rocky", "surfaceColor": [ 0.38, 0.36, 0.33 ], "terrain": { "proceduralNoiseAmplitudeMeters": 3000, "proceduralNoiseFrequency": 2.0 }, "atmosphere": { "heightMeters": 0, "density": 0, "color": [ 0, 0, 0 ], "composition": "Mycket tunn exosfär" }, "rotationPeriodHours": 1407.5088, "massKg": 3.30103e+23, "poleLongitudeDegrees": 0 }, { "id": "venus", "name": "Venus", "hostStarId": "sun", "seed": 102, "description": "Tät koldioxidatmosfär och kraftig växthuseffekt. Molntäckt yta.", "radiusMeters": 6051800, "axialTiltDegrees": 177.4, "rotationDegrees": 20, "orbit": { "semiMajorAxisAu": 0.72333566, "eccentricity": 0.00677672, "inclinationDegrees": 3.39467605, "ascendingNodeDegrees": 76.67984255, "periapsisDegrees": 54.92262463, "meanAnomalyDegrees": 50.37663232, "periodDays": 224.70079921 }, "surfaceType": "cloudCovered", "surfaceColor": [ 0.72, 0.56, 0.31 ], "terrain": { "proceduralNoiseAmplitudeMeters": 0, "proceduralNoiseFrequency": 1 }, "atmosphere": { "heightMeters": 250000, "density": 8, "color": [ 0.65, 0.47, 0.22 ], "composition": "Koldioxid, kväve och svavelsyramoln" }, "rotationPeriodHours": 5832.432, "massKg": 4.86731e+24, "poleLongitudeDegrees": 0 }, { "id": "earth", "name": "Jorden", "hostStarId": "sun", "seed": 103, "description": "Vår hemplanet. Hav, kontinenter och en kväve- och syrerik atmosfär.", "radiusMeters": 6371000, "axialTiltDegrees": 23.44, "rotationDegrees": 135, "orbit": { "semiMajorAxisAu": 1.00000261, "eccentricity": 0.01671123, "inclinationDegrees": -1.531e-05, "ascendingNodeDegrees": 0, "periapsisDegrees": 102.93768193, "meanAnomalyDegrees": -2.47311027, "periodDays": 365.25635535 }, "surfaceType": "terrestrial", "surfaceColor": [ 0.25, 0.39, 0.2 ], "surfaceTexture": "Textures/earth-color.jpg", "materials": { "enabled": true, "flatMaterial": "leafy-grass", "slopeMaterial": "rock-ground", "scaleMeters": 8, "fadeDistanceMeters": 2000, "strength": 0.8 }, "clouds": { "enabled": true, "densityTexturePath": "Clouds/earth-clouds.png", "densityTextureStrength": 1.0, "baseAltitudeMeters": 2100, "thicknessMeters": 4300, "coverage": 0.4, "density": 0.85, "shapeScaleMeters": 18000, "detailScaleMeters": 2400, "erosion": 0.45, "cloudType": 0.9, "windSpeedMetersPerSecond": 18, "windDirectionDegrees": 25, "extinctionPerMeter": 0.0007, "scatteringAlbedo": 0.96, "anisotropy": 0.62, "silverLiningStrength": 0.7, "ambientStrength": 0.6, "sunlightStrength": 1.0, "sunsetStrength": 1.4, "shadowStrength": 0.7, "viewSteps": 48, "lightSteps": 4, "resolutionScale": 0.4, "maxViewDistanceMeters": 220000 }, "ocean": { "enabled": true, "screenSpaceReflections": { "enabled": true, "reflectSky": true, "strength": 1, "resolutionScale": 0.5, "maxSteps": 48, "stridePixels": 2, "maxDistanceMeters": 3000, "maxSurfaceDistanceMeters": 4000, "thicknessMeters": 1.5, "normalBiasMeters": 0.12, "edgeFade": 0.07 }, "maskFromSurfaceTexture": true, "seaLevelMeters": 0, "depthMeters": 4000, "waveAmplitudeMeters": 0.6, "waveLengthMeters": 36, "windDirectionDegrees": 35, "windSpreadDegrees": 110, "waveSpeed": 1.0, "choppiness": 0.4, "rippleStrength": 0.65, "waveGeometryDistanceMeters": 4000, "whitecapThreshold": 0.22, "roughness": 0.26, "reflectionStrength": 1.0, "refractionStrength": 0.018, "foamStrength": 0.3, "deepColor": [ 0.008, 0.07, 0.14 ], "shallowColor": [ 0.025, 0.28, 0.24 ], "absorption": [ 0.12, 0.045, 0.022 ] }, "terrain": { "heightmap": "Textures/earth-height.jpg", "regionalHeight": { "file": "Heightdata/Copernicus/alps_n46_e007.f32", "width": 3600, "height": 3600, "westDegrees": 7, "southDegrees": 46, "eastDegrees": 8, "northDegrees": 47, "fadeDegrees": 0.04 }, "heightmapMinMeters": 0, "heightmapMaxMeters": 10848, "heightmapGamma": 1.0, "proceduralNoiseAmplitudeMeters": 120, "proceduralNoiseFrequency": 24, "noiseMask": "heightmapLand", "landThreshold": 0.02, "landBlend": 0.04 }, "atmosphere": { "heightMeters": 220000, "density": 1.0, "color": [ 0.13, 0.32, 1.0 ], "composition": "Kväve och syre" }, "moons": [ { "id": "moon", "name": "Månen", "hostStarId": "sun", "seed": 109, "description": "Jordens naturliga satellit.", "radiusMeters": 1737400, "axialTiltDegrees": 6.7, "rotationDegrees": 0, "orbit": { "semiMajorAxisAu": 0.00256955, "eccentricity": 0.0549, "phaseDegrees": 60, "inclinationDegrees": 5.1, "ascendingNodeDegrees": 0, "periapsisDegrees": 0, "periodDays": 27.321661 }, "surfaceType": "rocky", "surfaceColor": [ 0.37, 0.36, 0.34 ], "terrain": { "proceduralNoiseAmplitudeMeters": 2000, "proceduralNoiseFrequency": 2.0 }, "atmosphere": { "heightMeters": 0, "density": 0, "color": [ 0, 0, 0 ], "composition": "Mycket tunn exosfär" }, "rotationPeriodHours": 655.719864, "massKg": 7.342e+22 } ], "rotationPeriodHours": 23.93447232, "massKg": 5.97217e+24, "poleLongitudeDegrees": 0, "vegetation": { "enabled": true, "densityMultiplier": 0.7, "treeDistanceMeters": 2000, "treeLodMeters": [ 40, 150, 400 ], "grassDistanceMeters": 80, "shrubDistanceMeters": 150, "affectGroundMaterials": true, "uploadBudgetMilliseconds": 1, "shadowResolution": 2048, "shadowSoftness": 1.0, "shadowCascadeBlend": 0.2, "shadowBiasMeters": 0.035, "shadowDistancesMeters": [ 100, 400 ] } }, { "id": "mars", "name": "Mars", "hostStarId": "sun", "seed": 104, "description": "Den röda planeten. Tunn atmosfär och spår av tidigare vatten.", "radiusMeters": 3389500, "axialTiltDegrees": 25.2, "rotationDegrees": 20, "orbit": { "semiMajorAxisAu": 1.52371034, "eccentricity": 0.0933941, "inclinationDegrees": 1.84969142, "ascendingNodeDegrees": 49.55953891, "periapsisDegrees": -73.5031685, "meanAnomalyDegrees": 19.39019754, "periodDays": 686.9795859 }, "surfaceType": "rocky", "surfaceColor": [ 0.56, 0.24, 0.12 ], "terrain": { "proceduralNoiseAmplitudeMeters": 12000, "proceduralNoiseFrequency": 1.4 }, "atmosphere": { "heightMeters": 280000, "density": 0.08, "color": [ 0.7, 0.55, 0.36 ], "composition": "Tunn koldioxidatmosfär" }, "rotationPeriodHours": 24.62296224, "massKg": 6.41691e+23, "poleLongitudeDegrees": 0 }, { "id": "jupiter", "name": "Jupiter", "hostStarId": "sun", "seed": 105, "description": "Största planeten. En bandad gasjätte med starkt magnetfält.", "radiusMeters": 69911000, "axialTiltDegrees": 3.1, "rotationDegrees": 20, "orbit": { "semiMajorAxisAu": 5.202887, "eccentricity": 0.04838624, "inclinationDegrees": 1.30439695, "ascendingNodeDegrees": 100.47390909, "periapsisDegrees": -85.74542926, "meanAnomalyDegrees": 19.66796068, "periodDays": 4332.82012875 }, "surfaceType": "gasGiant", "surfaceColor": [ 0.83, 0.77, 0.66 ], "cloudBandFrequency": 32, "stormStrength": 0.85, "terrain": { "proceduralNoiseAmplitudeMeters": 0, "proceduralNoiseFrequency": 1 }, "atmosphere": { "heightMeters": 300000, "density": 1.5, "color": [ 0.6, 0.46, 0.32 ], "composition": "Väte och helium" }, "gas": { "polarColor": [ 0.41, 0.39, 0.35 ], "bandContrast": 0.9, "polarRadiusScale": 0.935, "bandColor": [ 0.48, 0.25, 0.13 ], "hazeColor": [ 0.7, 0.64, 0.53 ], "fineBandContrast": 0.16, "cloudTurbulence": 0.55 }, "rotationPeriodHours": 9.92496, "massKg": 1.898125e+27, "poleLongitudeDegrees": 0 }, { "id": "saturn", "name": "Saturnus", "hostStarId": "sun", "seed": 106, "description": "Gasjätte med ett stort och tydligt ringsystem.", "radiusMeters": 58232000, "axialTiltDegrees": 26.7, "rotationDegrees": 0, "orbit": { "semiMajorAxisAu": 9.53667594, "eccentricity": 0.05386179, "inclinationDegrees": 2.48599187, "ascendingNodeDegrees": 113.66242448, "periapsisDegrees": -21.06354617, "meanAnomalyDegrees": -42.64463408, "periodDays": 10755.6986445 }, "surfaceType": "gasGiant", "surfaceColor": [ 0.76, 0.71, 0.57 ], "cloudBandFrequency": 36, "stormStrength": 0, "terrain": { "proceduralNoiseAmplitudeMeters": 0, "proceduralNoiseFrequency": 1 }, "atmosphere": { "heightMeters": 300000, "density": 1.1, "color": [ 0.58, 0.5, 0.32 ], "composition": "Väte och helium" }, "rings": { "seed": 10621, "innerRadiusMeters": 74658000, "outerRadiusMeters": 136780000, "color": [ 0.57, 0.55, 0.49 ], "opacity": 0.88, "thicknessMeters": 40, "gapInnerRadiusMeters": 117507000, "gapOuterRadiusMeters": 122340000, "appearance": { "profileResolution": 32768, "opticalDepth": 0.9, "fineBandCount": 1800, "microBandCount": 14000, "bandContrast": 0.85, "sunlightStrength": 4.8, "ambientStrength": 0.025, "forwardScattering": 0.65, "backlitStrength": 0.8, "shadowSoftnessMeters": 180000, "dustOpacity": 0.055, "outerColor": [ 0.74, 0.72, 0.65 ] }, "bands": [ { "innerRadiusMeters": 74658000, "outerRadiusMeters": 91975000, "density": 0.23, "color": [ 0.39, 0.38, 0.34 ] }, { "innerRadiusMeters": 91975000, "outerRadiusMeters": 117507000, "density": 1.8, "color": [ 0.76, 0.73, 0.64 ] }, { "innerRadiusMeters": 122340000, "outerRadiusMeters": 136780000, "density": 0.75, "color": [ 0.64, 0.62, 0.55 ] } ], "gaps": [ { "innerRadiusMeters": 133247500, "outerRadiusMeters": 133572500, "densityMultiplier": 0 }, { "innerRadiusMeters": 136466000, "outerRadiusMeters": 136508000, "densityMultiplier": 0 } ], "rocks": { "enabled": true, "cellSizeMeters": 256, "particlesPerCell": 384, "streamRadiusMeters": 3500, "maximumInstances": 100000, "minRadiusMeters": 0.06, "maxRadiusMeters": 1.8, "sizeExponent": 2.8, "densityScale": 1, "meshDistanceMeters": 600, "meshLodPixels": 3.5, "lodTransitionMeters": 180, "fadeStartMeters": 2600, "shapeIrregularity": 0.2, "roughness": 0.7, "iceStrength": 0.5, "sunlightStrength": 5.5, "ambientStrength": 0.035, "minColor": [ 0.28, 0.28, 0.26 ], "maxColor": [ 0.85, 0.84, 0.77 ], "asteroid": { "baseSubdivision": 1, "maxSubdivision": 6, "lodStartPixels": 14, "lodPixelMultiplier": 2.3, "highDetailDistanceMeters": 80, "maxHighDetailInstances": 12, "elongation": 0.55, "noiseFrequency": 1.1, "noiseOctaves": 3, "noisePersistence": 0.4, "ridgeStrength": 0.012, "craterFrequency": 10, "craterStrength": 0.28, "craterDensity": 0.72, "craterRimHeight": 0.06, "surfaceDetailStrength": 0.0002, "surfaceDetailFrequency": 150, "normalStrength": 0.8 } }, "preview": { "radiusFraction": 0.88, "azimuthDegrees": -80, "heightMeters": 120, "yawOffsetDegrees": -18, "pitchDegrees": -12, "fieldOfViewDegrees": 100, "flightSeconds": 8, "speedMetersPerSecond": 40, "rollDegrees": -12, "overviewDistanceInOuterRadii": 1.9, "overviewElevationDegrees": 24, "overviewSunAngleDegrees": 55 } }, "gas": { "outerRadiusScale": 1.055, "polarRadiusScale": 0.902, "density": 420, "scaleHeight": 0.01, "viewSteps": 96, "lightSteps": 7, "sampleDistribution": 3, "stopTransmittance": 0.003, "scatteringAlbedo": 0.94, "lightExtinction": 0.35, "sunlightStrength": 7, "ambientStrength": 0.022, "anisotropy": 0.18, "bandContrast": 0.45, "fineBandFrequency": 290, "fineBandContrast": 0.13, "cloudTurbulence": 0.11, "detailStrength": 0.018, "noiseScale": 72, "windSpeed": 0.012, "bandColor": [ 0.5, 0.46, 0.34 ], "polarColor": [ 0.31, 0.4, 0.46 ], "hazeColor": [ 0.74, 0.76, 0.69 ] }, "rotationPeriodHours": 10.65624, "massKg": 5.68317e+26, "poleLongitudeDegrees": 0 }, { "id": "uranus", "name": "Uranus", "hostStarId": "sun", "seed": 107, "description": "Isgigant med cirka 98 graders axellutning, liggande på sidan.", "radiusMeters": 25362000, "axialTiltDegrees": 97.8, "rotationDegrees": 0, "orbit": { "semiMajorAxisAu": 19.18916464, "eccentricity": 0.04725744, "inclinationDegrees": 0.77263783, "ascendingNodeDegrees": 74.01692503, "periapsisDegrees": 96.93735127, "meanAnomalyDegrees": 142.28382821, "periodDays": 30687.1530015 }, "surfaceType": "iceGiant", "surfaceColor": [ 0.25, 0.68, 0.73 ], "cloudBandFrequency": 16, "stormStrength": 0, "terrain": { "proceduralNoiseAmplitudeMeters": 0, "proceduralNoiseFrequency": 1 }, "atmosphere": { "heightMeters": 180000, "density": 1.3, "color": [ 0.15, 0.62, 0.7 ], "composition": "Väte, helium och metan" }, "gas": { "polarColor": [ 0.32, 0.58, 0.63 ], "bandContrast": 0.12, "polarRadiusScale": 0.977, "bandColor": [ 0.36, 0.67, 0.7 ], "hazeColor": [ 0.55, 0.79, 0.8 ], "fineBandContrast": 0.025, "cloudTurbulence": 0.04 }, "rotationPeriodHours": 17.23992, "massKg": 8.68099e+25, "poleLongitudeDegrees": 0 }, { "id": "neptune", "name": "Neptunus", "hostStarId": "sun", "seed": 108, "description": "Blå isgigant med kraftiga vindar i den yttre atmosfären.", "radiusMeters": 24622000, "axialTiltDegrees": 28.3, "rotationDegrees": 0, "orbit": { "semiMajorAxisAu": 30.06992276, "eccentricity": 0.00859048, "inclinationDegrees": 1.77004347, "ascendingNodeDegrees": 131.78422574, "periapsisDegrees": -86.81946347, "meanAnomalyDegrees": -100.08479196, "periodDays": 60190.02963 }, "surfaceType": "iceGiant", "surfaceColor": [ 0.075, 0.21, 0.62 ], "cloudBandFrequency": 22, "stormStrength": 0.45, "terrain": { "proceduralNoiseAmplitudeMeters": 0, "proceduralNoiseFrequency": 1 }, "atmosphere": { "heightMeters": 180000, "density": 1.4, "color": [ 0.12, 0.28, 0.9 ], "composition": "Väte, helium och metan" }, "gas": { "polarColor": [ 0.13, 0.26, 0.47 ], "bandContrast": 0.35, "polarRadiusScale": 0.983, "bandColor": [ 0.08, 0.18, 0.46 ], "hazeColor": [ 0.24, 0.42, 0.68 ], "fineBandContrast": 0.05, "cloudTurbulence": 0.18 }, "rotationPeriodHours": 16.11, "massKg": 1.024092e+26, "poleLongitudeDegrees": 0 } ], "epochUtc": "2000-01-01T12:00:00Z" } ] }