double muse_astro_parangle(const cpl_propertylist *)
Properly average parallactic angle values of one exposure.
double muse_astro_compute_airmass(double, double, double, double, double)
Compute the effective airmass of an observation.
double muse_astro_posangle(const cpl_propertylist *)
Derive the position angle of an observation from information in a FITS header.
double muse_astro_angular_distance(double, double, double, double)
Compute angular distance in the sky between two positions.
double muse_astro_airmass(cpl_propertylist *)
Derive the effective airmass of an observation from information in a FITS header. ...