Function astro::nutation::nutation_in_eq_coords
[−]
[src]
pub fn nutation_in_eq_coords(eq_point: &EqPoint, nut_in_long: f64, nut_in_oblq: f64, tru_oblq: f64) -> (f64, f64)
Computes nutation in equatorial coordinates
Returns
(nut_in_asc, nut_in_dec)
nut_in_asc: Nutation in right ascension | in radiansnut_in_dec: Nutation in declination | in radians
Arguments
eq_point: Equatorial point uncorrected for nutation | in radiansnut_in_long: Nutation in longitude | in radiansnut_in_oblq: Nutation in obliquity | in radianstru_oblq: True obliquity of the ecliptic | in radians
The declination of eq_point should not be close to either of the
two of the celestial poles, as the values of nutation returned here
are only from first-order corrections.