pub const CALLISTO_MASS: f64 = 1.0759e23;
pub const CALLISTO_RADIUS_M: f64 = 2_410_300.0;
pub const JUPITER_MASS: f64 = 1.8982e27;
pub const JUPITER_RADIUS_M: f64 = 69_911_000.0;
pub const JUPITER_CALLISTO_DISTANCE_M: f64 = 1_882_700_000.0;
pub const SIDEREAL_ORBIT_PERIOD_S: f64 = 16.689 * 86_400.0;
pub const SYNODIC_PERIOD_S: f64 = 16.69 * 86_400.0;
pub const SURFACE_GRAVITY_M_S2: f64 = 1.235;
pub const ESCAPE_VELOCITY_M_S: f64 = 2_440.0;
pub const GEOMETRIC_ALBEDO: f64 = 0.22;
pub const SOLAR_CONSTANT_AT_CALLISTO_W_M2: f64 = 51.0;
pub const H24_RUNTIME_HOURS: u64 = 24;
pub const CALLISTO_DAY_HOURS: f64 = 400.7;
pub const MIN_SURFACE_TEMP_K: f64 = 80.0;
pub const MAX_SURFACE_TEMP_K: f64 = 165.0;
pub const COSMIC_RAY_DOSE_MSV_DAY: f64 = 1.0;
pub mod environment;
pub mod exosphere;
pub mod geodata;
pub mod geology;
pub mod interactions;
pub mod lighting;
pub mod missions;
pub mod observation;
pub mod physics;
pub mod rendering;
pub mod resources;
pub mod surface;
pub mod temporal;
pub mod terrain;