pub const ENCELADUS_MASS: f64 = 1.0802e20;
pub const ENCELADUS_RADIUS_M: f64 = 252_100.0;
pub const SATURN_MASS: f64 = 5.6834e26;
pub const SATURN_RADIUS_M: f64 = 58_232_000.0;
pub const SATURN_ENCELADUS_DISTANCE_M: f64 = 238_042_000.0;
pub const SIDEREAL_ORBIT_PERIOD_S: f64 = 1.370 * 86_400.0;
pub const SYNODIC_PERIOD_S: f64 = 1.372 * 86_400.0;
pub const SURFACE_GRAVITY_M_S2: f64 = 0.113;
pub const ESCAPE_VELOCITY_M_S: f64 = 239.0;
pub const GEOMETRIC_ALBEDO: f64 = 0.99;
pub const SOLAR_CONSTANT_AT_ENCELADUS_W_M2: f64 = 15.0;
pub const H24_RUNTIME_HOURS: u64 = 24;
pub const ENCELADUS_DAY_HOURS: f64 = 32.9;
pub const MIN_SURFACE_TEMP_K: f64 = 33.0;
pub const MAX_SURFACE_TEMP_K: f64 = 145.0;
pub const COSMIC_RAY_DOSE_MSV_DAY: f64 = 0.5;
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;