Sky2Pix_Stereographic

class astropy.modeling.projections.Sky2Pix_Stereographic(*args, meta=None, name=None, **kwargs)

Bases: astropy.modeling.projections.Sky2PixProjection, astropy.modeling.projections.Zenithal

Stereographic Projection - sky to pixel.

Corresponds to the STG projection in FITS WCS.

See Zenithal for a definition of the full transformation.

\[R_\theta = \frac{180^{\circ}}{\pi}\frac{2 \cos \theta}{1 + \sin \theta}\]

Methods Summary

evaluate(phi, theta)

Evaluate the model on some input variables.

Methods Documentation

classmethod evaluate(phi, theta)

Evaluate the model on some input variables.