def get_west(self):
'''
In celestial coordinates
'''
self.calculate_local_north_and_up_in_celestial_coords(False)
v = Geometry.scale_vector(self.true_east_celestial, -1)
return get_instance_from_vector3(v)
def get_east(self):
'''
In celestial coordinates
'''
self.calculate_local_north_and_up_in_celestial_coords(False)
return get_instance_from_vector3(self.true_east_celestial)
