galpy.util.coords.lb_to_radec

galpy.util.coords.lbd_to_XYZ(l, b, d, degree=False)[source]

Transform from spherical Galactic coordinates to rectangular Galactic coordinates (works with vector inputs)

Parameters:

  • l (float or numpy.ndarray) – Galactic longitude (rad)

  • b (float or numpy.ndarray) – Galactic latitude (rad)

  • d (float or numpy.ndarray) – Distance (arbitrary units)

  • degree (bool, optional) – If True, l and b are in degrees. Default is False.

Returns:

[X,Y,Z] in whatever units d was in. For vector inputs [:,3]

Return type:

tuple or numpy.ndarray

Notes

  • 2009-10-24 - Written - Bovy (NYU)

  • 2014-06-14 - Re-written w/ numpy functions for speed and w/ decorators for beauty - Bovy (IAS)