[
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    "aphelion_distance_au": 0.00271,
    "texture_url": "https://cdn.jsdelivr.net/gh/mrdoob/three.js@r128/examples/textures/planets/moon_1024.jpg",
    "data_source": "NASA JPL Horizons",
    "fetch_date": "2026-01-19"
  },
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    "name": "Io",
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    "classification": "Galilean Moon",
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    "argument_perihelion_deg": 84.129,
    "mean_anomaly_deg": 342.021,
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    "rotation_period_days": 1.769,
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    "aphelion_distance_au": 0.00283,
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    "data_source": "NASA JPL Horizons",
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    "argument_perihelion_deg": 88.970,
    "mean_anomaly_deg": 171.016,
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    "rotation_period_days": 3.551,
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    "parent_planet": "Jupiter",
    "classification": "Galilean Moon",
    "diameter_km": 5262,
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    "ascending_node_deg": 63.552,
    "argument_perihelion_deg": 192.417,
    "mean_anomaly_deg": 317.540,
    "orbital_period_years": 0.0196,
    "rotation_period_days": 7.155,
    "perihelion_distance_au": 0.00715,
    "aphelion_distance_au": 0.00717,
    "texture_url": "https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Ganymede_g1_true-edit1.jpg/240px-Ganymede_g1_true-edit1.jpg",
    "data_source": "NASA JPL Horizons",
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  },
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    "name": "Callisto",
    "parent_planet": "Jupiter",
    "classification": "Galilean Moon",
    "diameter_km": 4821,
    "mass_earth": 0.018,
    "semi_major_axis_au": 0.01259,
    "eccentricity": 0.0074,
    "inclination_deg": 0.51,
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    "argument_perihelion_deg": 52.643,
    "mean_anomaly_deg": 181.408,
    "orbital_period_years": 0.0457,
    "rotation_period_days": 16.689,
    "perihelion_distance_au": 0.01250,
    "aphelion_distance_au": 0.01268,
    "texture_url": "https://upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Callisto.jpg/240px-Callisto.jpg",
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    "name": "Titan",
    "parent_planet": "Saturn",
    "classification": "Major Moon",
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    "ascending_node_deg": 28.06,
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    "mean_anomaly_deg": 163.210,
    "orbital_period_years": 0.0437,
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    "perihelion_distance_au": 0.00793,
    "aphelion_distance_au": 0.00841,
    "texture_url": "https://upload.wikimedia.org/wikipedia/commons/thumb/4/45/Titan_in_true_color.jpg/240px-Titan_in_true_color.jpg",
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]