Function astro::precess::precess_eq_coords_FK5 [−] [src]

pub fn precess_eq_coords_FK5(old_asc: f64, old_dec: f64, JD1: f64, JD2: f64) -> (f64, f64)

Computes equatorial coordinates, from coordinates referred to the FK4 system, reduced to a different epoch

Returns

(new_asc, new_dec)

new_asc: Right ascension in the new epoch | in radians
new_dec: Declination in the new epoch | in radians

Arguments

old_asc: Right ascension in the old epoch | in radians, referred to the FK4 system
old_dec: Declination for in old epoch | in radians, referred to the FK4 system
JD1 : Julian (Ephemeris) day corresponding to the old epoch
JD2 : Julian (Ephemeris) day corresponding to the new epoch

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