Function astro::planet::apprnt_mag_84

pub fn apprnt_mag_84<'a>(planet: &Planet, i: f64, delta: f64, r: f64) -> Result<f64, &'a str>

Computes a planet's apparent magnitude using the Astronomical Almanac's method adopted in 1984

Returns

• app_mag: Apparent magnitude of the planet

Arguments

• planet: Any variant of Planet
• i : Phase angle of the planet | in radians
• delta : Planet-Earth distance | in AU
• r : Planet-Sun distance | in AU