773 lines
23 KiB
JSON
773 lines
23 KiB
JSON
{
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"schemaVersion": 1,
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"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/",
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"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.",
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"systems": [
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{
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"id": "sol",
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"name": "Vårt solsystem",
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"sector": {
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"x": 0,
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"y": 0,
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"z": 0
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},
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"seed": 1,
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"centerOffsetMeters": [
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0,
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0,
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0
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],
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"stars": [
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{
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"id": "sun",
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"name": "Solen",
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"seed": 100,
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"positionMeters": [
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0,
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0,
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0
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],
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"radiusMeters": 695700000,
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"luminositySolar": 1.0,
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"color": [
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1.0,
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0.94,
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0.85
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],
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"glow": {
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"enabled": true,
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"intensity": 2.4,
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"referenceDistanceAu": 1,
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"distanceFalloff": 0.65,
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"apparentRadiusMultiplier": 4.5,
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"minimumCorePixels": 5.0,
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"haloRadiusDegrees": 3.2,
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"haloStrength": 0.85,
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"rayCount": 8,
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"rayLengthDegrees": 12,
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"raySharpness": 90,
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"rayStrength": 2.1,
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"ghostStrength": 0.04,
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"ghostSpacing": 0.42,
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"chromaticAberration": 0.08
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},
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"massKg": 1.98847e+30
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}
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],
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"planets": [
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{
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"id": "mercury",
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"name": "Merkurius",
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"hostStarId": "sun",
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"seed": 101,
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"description": "Minsta planeten. Stenig yta och nästan ingen atmosfär.",
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"radiusMeters": 2439700,
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"axialTiltDegrees": 0.034,
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"rotationDegrees": 15,
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"orbit": {
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"semiMajorAxisAu": 0.38709927,
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"eccentricity": 0.20563593,
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"inclinationDegrees": 7.00497902,
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"ascendingNodeDegrees": 48.33076593,
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"periapsisDegrees": 29.12703035,
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"meanAnomalyDegrees": 174.79252722,
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"periodDays": 87.96925717
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},
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"surfaceType": "rocky",
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"surfaceColor": [
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0.38,
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0.36,
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0.33
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],
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"terrain": {
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"proceduralNoiseAmplitudeMeters": 3000,
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"proceduralNoiseFrequency": 2.0
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},
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"atmosphere": {
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"heightMeters": 0,
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"density": 0,
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"color": [
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0,
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0,
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0
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],
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"composition": "Mycket tunn exosfär"
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},
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"rotationPeriodHours": 1407.5088,
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"massKg": 3.30103e+23,
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"poleLongitudeDegrees": 0
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},
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{
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"id": "venus",
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"name": "Venus",
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"hostStarId": "sun",
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"seed": 102,
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"description": "Tät koldioxidatmosfär och kraftig växthuseffekt. Molntäckt yta.",
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"radiusMeters": 6051800,
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"axialTiltDegrees": 177.4,
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"rotationDegrees": 20,
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"orbit": {
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"semiMajorAxisAu": 0.72333566,
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"eccentricity": 0.00677672,
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"inclinationDegrees": 3.39467605,
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"ascendingNodeDegrees": 76.67984255,
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"periapsisDegrees": 54.92262463,
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"meanAnomalyDegrees": 50.37663232,
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"periodDays": 224.70079921
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},
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"surfaceType": "cloudCovered",
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"surfaceColor": [
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0.72,
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0.56,
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0.31
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],
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"terrain": {
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"proceduralNoiseAmplitudeMeters": 0,
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"proceduralNoiseFrequency": 1
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},
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"atmosphere": {
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"heightMeters": 250000,
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"density": 8,
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"color": [
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0.65,
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0.47,
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0.22
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],
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"composition": "Koldioxid, kväve och svavelsyramoln"
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},
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"rotationPeriodHours": 5832.432,
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"massKg": 4.86731e+24,
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"poleLongitudeDegrees": 0
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},
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{
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"id": "earth",
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"name": "Jorden",
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"hostStarId": "sun",
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"seed": 103,
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"description": "Vår hemplanet. Hav, kontinenter och en kväve- och syrerik atmosfär.",
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"radiusMeters": 6371000,
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"axialTiltDegrees": 23.44,
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"rotationDegrees": 135,
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"orbit": {
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"semiMajorAxisAu": 1.00000261,
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"eccentricity": 0.01671123,
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"inclinationDegrees": -1.531e-05,
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"ascendingNodeDegrees": 0,
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"periapsisDegrees": 102.93768193,
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"meanAnomalyDegrees": -2.47311027,
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"periodDays": 365.25635535
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},
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"surfaceType": "terrestrial",
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"surfaceColor": [
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0.25,
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0.39,
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0.2
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],
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"surfaceTexture": "Textures/earth-color.jpg",
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"materials": {
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"enabled": true,
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"flatMaterial": "leafy-grass",
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"slopeMaterial": "rock-ground",
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"scaleMeters": 8,
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"fadeDistanceMeters": 2000,
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"strength": 0.8
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},
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"clouds": {
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"enabled": true,
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"densityTexturePath": "Clouds/earth-clouds.png",
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"densityTextureStrength": 1.0,
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"baseAltitudeMeters": 2100,
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"thicknessMeters": 4300,
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"coverage": 0.4,
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"density": 0.85,
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"shapeScaleMeters": 18000,
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"detailScaleMeters": 2400,
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"erosion": 0.45,
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"cloudType": 0.9,
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"windSpeedMetersPerSecond": 18,
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"windDirectionDegrees": 25,
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"extinctionPerMeter": 0.0007,
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"scatteringAlbedo": 0.96,
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"anisotropy": 0.62,
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"silverLiningStrength": 0.7,
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"ambientStrength": 0.6,
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"sunlightStrength": 1.0,
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"sunsetStrength": 1.4,
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"shadowStrength": 0.7,
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"viewSteps": 48,
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"lightSteps": 4,
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"resolutionScale": 0.4,
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"maxViewDistanceMeters": 220000
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},
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"ocean": {
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"enabled": true,
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"maskFromSurfaceTexture": true,
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"seaLevelMeters": 0,
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"depthMeters": 4000,
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"waveAmplitudeMeters": 1.6,
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"waveLengthMeters": 72,
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"windDirectionDegrees": 35,
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"waveSpeed": 1.0,
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"choppiness": 0.65,
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"roughness": 0.14,
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"reflectionStrength": 1.0,
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"refractionStrength": 0.018,
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"foamStrength": 0.65,
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"deepColor": [
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0.006,
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0.045,
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0.075
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],
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"shallowColor": [
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0.025,
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0.28,
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0.24
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],
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"absorption": [
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0.12,
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0.045,
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0.022
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]
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},
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"terrain": {
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"heightmap": "Textures/earth-height.jpg",
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"regionalHeight": {
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"file": "Heightdata/Copernicus/alps_n46_e007.f32",
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"width": 3600,
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"height": 3600,
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"westDegrees": 7,
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"southDegrees": 46,
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"eastDegrees": 8,
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"northDegrees": 47,
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"fadeDegrees": 0.04
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},
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"heightmapMinMeters": 0,
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"heightmapMaxMeters": 10848,
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"heightmapGamma": 1.0,
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"proceduralNoiseAmplitudeMeters": 120,
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"proceduralNoiseFrequency": 24,
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"noiseMask": "heightmapLand",
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"landThreshold": 0.02,
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"landBlend": 0.04
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},
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"atmosphere": {
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"heightMeters": 220000,
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"density": 1.0,
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"color": [
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0.13,
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0.32,
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1.0
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],
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"composition": "Kväve och syre"
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},
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"moons": [
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{
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"id": "moon",
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"name": "Månen",
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"hostStarId": "sun",
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"seed": 109,
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"description": "Jordens naturliga satellit.",
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"radiusMeters": 1737400,
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"axialTiltDegrees": 6.7,
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"rotationDegrees": 0,
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"orbit": {
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"semiMajorAxisAu": 0.00256955,
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"eccentricity": 0.0549,
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"periodDays": 27.321661
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},
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"surfaceType": "rocky",
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"surfaceColor": [
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0.36,
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0.34
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"proceduralNoiseAmplitudeMeters": 2000,
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},
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"density": 0,
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"color": [
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0,
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0
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],
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"composition": "Mycket tunn exosfär"
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},
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"rotationPeriodHours": 655.719864,
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"massKg": 7.342e+22
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}
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],
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"rotationPeriodHours": 23.93447232,
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"poleLongitudeDegrees": 0
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},
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{
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"id": "mars",
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"name": "Mars",
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"hostStarId": "sun",
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"seed": 104,
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"description": "Den röda planeten. Tunn atmosfär och spår av tidigare vatten.",
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0.24,
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0.12
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"atmosphere": {
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"heightMeters": 280000,
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0.7,
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0.55,
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0.36
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],
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"composition": "Tunn koldioxidatmosfär"
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},
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"massKg": 6.41691e+23,
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"poleLongitudeDegrees": 0
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},
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{
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"id": "jupiter",
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"name": "Jupiter",
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"seed": 105,
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"description": "Största planeten. En bandad gasjätte med starkt magnetfält.",
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},
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},
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{
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"id": "saturn",
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"name": "Saturnus",
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"seed": 106,
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},
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},
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{
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"gaps": [
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{
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],
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"rocks": {
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"enabled": true,
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{
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"composition": "Väte, helium och metan"
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},
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}
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],
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"epochUtc": "2000-01-01T12:00:00Z"
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}
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]
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}
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