SkyCoord Issues

>>> from frames import *
>>> hgic = HelioGraphicStonyhurst(1*u.deg, 1*u.deg)
((<Quantity 1.0 deg>, <Quantity 1.0 deg>), {})
In args section
((<Quantity 1.0 deg>, <Quantity 1.0 deg>, <Quantity 695508.0 km>), {})
>>> hgic # Works fine
<HelioGraphicStonyhurst Coordinate: hlon=1.0 deg, hlat=1.0 deg, rad=695508.0 km>
>>> from astropy.coordinates import SkyCoord
>>> sc = SkyCoord(hgic) # Problems?
((), {}) # Why is the args section empty?
In kwargs section
((), {'rad': <Quantity 695508.0 km>}) # In kwargs, the rad quantity is added automatically
# This can happen only because of the code I added in the constructor.
# Why is the Heliographic constructor called twice?
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/pritishc/RestOfFileSystem/Astropy Repo/astropy/astropy/coordinates/sky_coordinate.py", line 134, in __init__
    kwargs = self._parse_inputs(args, kwargs)
  File "/home/pritishc/RestOfFileSystem/Astropy Repo/astropy/astropy/coordinates/sky_coordinate.py", line 199, in _parse_inputs
    frame = valid_kwargs['frame'] = _get_frame(args, kwargs)
  File "/home/pritishc/RestOfFileSystem/Astropy Repo/astropy/astropy/coordinates/sky_coordinate.py", line 816, in _get_frame
    frame = frame_cls()
  File "frames.py", line 73, in __init__
    super(HelioGraphicStonyhurst, self).__init__(*args, **kwargs)
  File "/home/pritishc/RestOfFileSystem/Astropy Repo/astropy/astropy/coordinates/baseframe.py", line 437, in __init__
    representation_data = self.representation(**repr_kwargs)
TypeError: __init__() takes at least 4 arguments (2 given)
>>>