obliquity

Defined in: mod.rs:175

fn obliquity(epoch: &Epoch) -> f64

Mean obliquity of the ecliptic at epoch [radians].

Reference: Meeus, “Astronomical Algorithms”.

Time scale

Meeus ephemerides take a dynamical time argument (TDB). The public signature accepts &Epoch<Utc> for backward compatibility; UTC is converted to TDB internally.