SDSSMuNu¶

class pydl.pydlutils.coord.SDSSMuNu(*args, copy=True, representation_type=None, differential_type=None, **kwargs)[source]¶

Bases: astropy.coordinates.baseframe.BaseCoordinateFrame

SDSS Great Circle Coordinates

Parameters:

mu : Angle

Angle corresponding to longitude measured along a stripe.

nu : Angle

Angle corresponding to latitude measured perpendicular to a stripe.

Notes

Attributes

stripe	SDSS `Stripe Number`_ .
node	Node of the great circle with respect to the celestial equator. In SDSS, this is almost always RA = 95.0 degrees.
incl	Inclination of the great circle with respect to the celestial equator.
phi	Counter-clockwise position angle w.r.t. north for an arc in the +nu direction.
.. _`Stripe Number`: http://www.sdss.org/dr14/help/glossary/#stripe

Attributes Summary

`default_differential`
`default_representation`
`frame_attributes`
`frame_specific_representation_info`
`incl`
`name`
`node`
`stripe`

Attributes Documentation

frame_attributes = {'node': <astropy.coordinates.attributes.QuantityAttribute object>, 'stripe': <astropy.coordinates.attributes.Attribute object>}¶