Function astro::atmos::refrac_frm_true_alt [−] [src]

pub fn refrac_frm_true_alt(true_alt: f64) -> f64

Computes the refraction term for apparent altitude

This function is consistent with refrac_frm_apprnt_alt() to within 4 arcseconds.

Returns

refrac_term: The refraction term | in radians, that needs to be added to the true altitude to get the apparent altitude

Arguments

true_alt: True altitude | in radians

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