Get angular distance from RA and DEC¶
- PyAstronomy.pyasl.getAngDist(ra1, dec1, ra2, dec2)¶
Calculate the angular distance between two coordinates.
- Parameters
- ra1float, array
Right ascension of the first object in degrees.
- dec1float, array
Declination of the first object in degrees.
- ra2float, array
Right ascension of the second object in degrees.
- dec2float, array
Declination of the second object in degrees.
- Returns
- Anglefloat, array
The angular distance in DEGREES between the first and second coordinate in the sky.
Example¶
from __future__ import print_function, division
from PyAstronomy import pyasl
print("Angular distance between the poles (deg):")
print(pyasl.getAngDist(98.0, -90.0, 100., +90.0))
print("Angular distance between Vega and Altair (deg)")
print(pyasl.getAngDist(279.23473479, +38.78368896,297.69582730, +08.86832120))
