ganymedes 0.0.2

Ganymede celestial simulation crate for the MilkyWay SolarSystem workspace
Documentation 
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#[derive(Debug, Clone, Copy, PartialEq)]
pub struct Palimpsest {
    pub name: &'static str,
    pub diameter_km: f64,
    pub albedo: f64,
    pub age_gyr: f64,
}

impl Palimpsest {
    pub fn relaxation_fraction(&self) -> f64 {
        (self.age_gyr / 4.5).clamp(0.0, 1.0)
    }
}

pub fn memphis_facula() -> Palimpsest {
    Palimpsest {
        name: "Memphis Facula",
        diameter_km: 340.0,
        albedo: 0.36,
        age_gyr: 3.6,
    }
}

pub fn cryovolcanic_resurfacing_rate_mm_yr(heat_flux_mw_m2: f64) -> f64 {
    heat_flux_mw_m2.max(0.0) * 0.002
}