Deserializes a JSONified :obj:`astropy.coordinates.SkyCoord`.

    Args:
        d (:obj:`dict`): A dictionary representation of a :obj:`SkyCoord` object.

    Returns:
        A :obj:`SkyCoord` object.

def deserialize_skycoord(d):
    """
    Deserializes a JSONified :obj:`astropy.coordinates.SkyCoord`.

    Args:
        d (:obj:`dict`): A dictionary representation of a :obj:`SkyCoord` object.

    Returns:
        A :obj:`SkyCoord` object.
    """
    if 'distance' in d:
        args = (d['lon'], d['lat'], d['distance'])
    else:
        args = (d['lon'], d['lat'])

    return coords.SkyCoord(
        *args,
        frame=d['frame'],
        representation='spherical')