Function posAngDegrees( ra1, dec1, ra2, dec2 )
- Description:
-
Calculates the position angle between two points on the sky in degrees.
The result is in the range +/-180.
If point 2 is due east of point 1, the result is +90.
Zero is returned if the points are coincident.
- Parameters:
-
ra1
(floating point)
- right ascension of point 1 in degrees
dec1
(floating point)
- declination of point 1 in degrees
ra2
(floating point)
- right ascension of point 2 in degrees
dec2
(floating point)
- declination of point 2 in degrees
- Return Value (floating point):
- bearing in degrees of point 2 from point 1.
- Signature:
double posAngDegrees(double, double, double, double)