[
    {
        "Body_Name": "Sun",
        "Category": "Star",
        "Parent_Body": "Milky Way",
        "Radius_km": 696340,
        "Oblateness": 5.0e-5,
        "Sidereal_Rotation_h": 609.12,
        "Axial_Tilt_deg": 7.25,
        "Surface_Gravity_m_s2": 274,
        "Mean_Distance_AU": 0,
        "Atmospheric_Composition": "73.46% H, 24.85% He"
    },
    {
        "Body_Name": "Mercury",
        "Category": "Terrestrial Planet",
        "Parent_Body": "Sun",
        "Radius_km": 2439.7,
        "Oblateness": 0,
        "Sidereal_Rotation_h": 1407.6,
        "Axial_Tilt_deg": 0.034,
        "Surface_Gravity_m_s2": 3.7,
        "Mean_Distance_AU": 0.387,
        "Atmospheric_Composition": "Trace He, Na, O2"
    },
    {
        "Body_Name": "Venus",
        "Category": "Terrestrial Planet",
        "Parent_Body": "Sun",
        "Radius_km": 6051.8,
        "Oblateness": 0,
        "Sidereal_Rotation_h": -5832.5,
        "Axial_Tilt_deg": 177.36,
        "Surface_Gravity_m_s2": 8.87,
        "Mean_Distance_AU": 0.723,
        "Atmospheric_Composition": "96.5% CO2, 3.5% N2"
    },
    {
        "Body_Name": "Earth",
        "Category": "Terrestrial Planet",
        "Parent_Body": "Sun",
        "Radius_km": 6378.1,
        "Oblateness": 0.00335,
        "Sidereal_Rotation_h": 23.934,
        "Axial_Tilt_deg": 23.44,
        "Surface_Gravity_m_s2": 9.807,
        "Mean_Distance_AU": 1,
        "Atmospheric_Composition": "78.08% N2, 20.95% O2, 0.93% Ar"
    },
    {
        "Body_Name": "Moon",
        "Category": "Planetary Moon",
        "Parent_Body": "Earth",
        "Radius_km": 1737.4,
        "Oblateness": 0.0012,
        "Sidereal_Rotation_h": 655.72,
        "Axial_Tilt_deg": 1.542,
        "Surface_Gravity_m_s2": 1.62,
        "Mean_Distance_AU": 1,
        "Atmospheric_Composition": "Surface boundary exosphere"
    },
    {
        "Body_Name": "Mars",
        "Category": "Terrestrial Planet",
        "Parent_Body": "Sun",
        "Radius_km": 3396.2,
        "Oblateness": 0.00589,
        "Sidereal_Rotation_h": 24.623,
        "Axial_Tilt_deg": 25.19,
        "Surface_Gravity_m_s2": 3.721,
        "Mean_Distance_AU": 1.524,
        "Atmospheric_Composition": "95.32% CO2, 2.6% N2, 1.9% Ar"
    },
    {
        "Body_Name": "Phobos",
        "Category": "Planetary Moon",
        "Parent_Body": "Mars",
        "Radius_km": 11.267,
        "Oblateness": 0.31,
        "Sidereal_Rotation_h": 7.65,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 0.0057,
        "Mean_Distance_AU": 1.524,
        "Atmospheric_Composition": "None"
    },
    {
        "Body_Name": "Deimos",
        "Category": "Planetary Moon",
        "Parent_Body": "Mars",
        "Radius_km": 6.2,
        "Oblateness": 0.3,
        "Sidereal_Rotation_h": 30.35,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 0.003,
        "Mean_Distance_AU": 1.524,
        "Atmospheric_Composition": "None"
    },
    {
        "Body_Name": "Jupiter",
        "Category": "Gas Giant",
        "Parent_Body": "Sun",
        "Radius_km": 71492,
        "Oblateness": 0.06487,
        "Sidereal_Rotation_h": 9.925,
        "Axial_Tilt_deg": 3.13,
        "Surface_Gravity_m_s2": 24.79,
        "Mean_Distance_AU": 5.204,
        "Atmospheric_Composition": "89.8% H2, 10.2% He"
    },
    {
        "Body_Name": "Io",
        "Category": "Galilean Moon",
        "Parent_Body": "Jupiter",
        "Radius_km": 1821.6,
        "Oblateness": 0.001,
        "Sidereal_Rotation_h": 42.46,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 1.796,
        "Mean_Distance_AU": 5.204,
        "Atmospheric_Composition": "90% SO2"
    },
    {
        "Body_Name": "Europa",
        "Category": "Galilean Moon",
        "Parent_Body": "Jupiter",
        "Radius_km": 1560.8,
        "Oblateness": 0.001,
        "Sidereal_Rotation_h": 85.23,
        "Axial_Tilt_deg": 0.1,
        "Surface_Gravity_m_s2": 1.315,
        "Mean_Distance_AU": 5.204,
        "Atmospheric_Composition": "Thin O2"
    },
    {
        "Body_Name": "Ganymede",
        "Category": "Galilean Moon",
        "Parent_Body": "Jupiter",
        "Radius_km": 2634.1,
        "Oblateness": 0.001,
        "Sidereal_Rotation_h": 171.7,
        "Axial_Tilt_deg": 0.2,
        "Surface_Gravity_m_s2": 1.428,
        "Mean_Distance_AU": 5.204,
        "Atmospheric_Composition": "Thin O2"
    },
    {
        "Body_Name": "Callisto",
        "Category": "Galilean Moon",
        "Parent_Body": "Jupiter",
        "Radius_km": 2410.3,
        "Oblateness": 0.001,
        "Sidereal_Rotation_h": 400.5,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 1.235,
        "Mean_Distance_AU": 5.204,
        "Atmospheric_Composition": "Thin CO2"
    },
    {
        "Body_Name": "Saturn",
        "Category": "Gas Giant",
        "Parent_Body": "Sun",
        "Radius_km": 60268,
        "Oblateness": 0.09796,
        "Sidereal_Rotation_h": 10.57,
        "Axial_Tilt_deg": 26.73,
        "Surface_Gravity_m_s2": 10.44,
        "Mean_Distance_AU": 9.582,
        "Atmospheric_Composition": "96.3% H2, 3.25% He"
    },
    {
        "Body_Name": "Titan",
        "Category": "Planetary Moon",
        "Parent_Body": "Saturn",
        "Radius_km": 2574.7,
        "Oblateness": 0,
        "Sidereal_Rotation_h": 382.68,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 1.352,
        "Mean_Distance_AU": 9.582,
        "Atmospheric_Composition": "95% N2, 4.9% CH4"
    },
    {
        "Body_Name": "Enceladus",
        "Category": "Planetary Moon",
        "Parent_Body": "Saturn",
        "Radius_km": 252.1,
        "Oblateness": 0.005,
        "Sidereal_Rotation_h": 32.88,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 0.113,
        "Mean_Distance_AU": 9.582,
        "Atmospheric_Composition": "91% H2O, 4% N2, 3.2% CO2"
    },
    {
        "Body_Name": "Mimas",
        "Category": "Planetary Moon",
        "Parent_Body": "Saturn",
        "Radius_km": 198.2,
        "Oblateness": 0.015,
        "Sidereal_Rotation_h": 22.62,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 0.064,
        "Mean_Distance_AU": 9.582,
        "Atmospheric_Composition": "None"
    },
    {
        "Body_Name": "Uranus",
        "Category": "Ice Giant",
        "Parent_Body": "Sun",
        "Radius_km": 25559,
        "Oblateness": 0.02293,
        "Sidereal_Rotation_h": -17.24,
        "Axial_Tilt_deg": 97.77,
        "Surface_Gravity_m_s2": 8.69,
        "Mean_Distance_AU": 19.2,
        "Atmospheric_Composition": "82.5% H2, 15.2% He, 2.3% CH4"
    },
    {
        "Body_Name": "Titania",
        "Category": "Planetary Moon",
        "Parent_Body": "Uranus",
        "Radius_km": 788.4,
        "Oblateness": 0,
        "Sidereal_Rotation_h": 208.9,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 0.379,
        "Mean_Distance_AU": 19.2,
        "Atmospheric_Composition": "Trace CO2"
    },
    {
        "Body_Name": "Oberon",
        "Category": "Planetary Moon",
        "Parent_Body": "Uranus",
        "Radius_km": 761.4,
        "Oblateness": 0,
        "Sidereal_Rotation_h": 323.1,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 0.346,
        "Mean_Distance_AU": 19.2,
        "Atmospheric_Composition": "None"
    },
    {
        "Body_Name": "Neptune",
        "Category": "Ice Giant",
        "Parent_Body": "Sun",
        "Radius_km": 24764,
        "Oblateness": 0.01708,
        "Sidereal_Rotation_h": 16.11,
        "Axial_Tilt_deg": 28.32,
        "Surface_Gravity_m_s2": 11.15,
        "Mean_Distance_AU": 30.05,
        "Atmospheric_Composition": "80% H2, 19% He, 1.5% CH4"
    },
    {
        "Body_Name": "Triton",
        "Category": "Planetary Moon",
        "Parent_Body": "Neptune",
        "Radius_km": 1353.4,
        "Oblateness": 0,
        "Sidereal_Rotation_h": -141,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 0.779,
        "Mean_Distance_AU": 30.05,
        "Atmospheric_Composition": "99% N2, trace CH4"
    },
    {
        "Body_Name": "Pluto",
        "Category": "Dwarf Planet",
        "Parent_Body": "Sun",
        "Radius_km": 1188.3,
        "Oblateness": 0,
        "Sidereal_Rotation_h": -153.29,
        "Axial_Tilt_deg": 122.53,
        "Surface_Gravity_m_s2": 0.62,
        "Mean_Distance_AU": 39.48,
        "Atmospheric_Composition": "99% N2, 0.5% CH4, 0.5% CO"
    },
    {
        "Body_Name": "Charon",
        "Category": "Plutonian Moon",
        "Parent_Body": "Pluto",
        "Radius_km": 606,
        "Oblateness": 0,
        "Sidereal_Rotation_h": -153.29,
        "Axial_Tilt_deg": 0,
        "Surface_Gravity_m_s2": 0.288,
        "Mean_Distance_AU": 39.48,
        "Atmospheric_Composition": "None"
    }
]