astropy:docs

Pix2Sky_STG

class astropy.modeling.projections.Pix2Sky_STG[source] [edit on github]

Bases: astropy.modeling.projections.Pix2SkyProjection, astropy.modeling.projections.Zenithal

STG : Stereographic Projection - pixel to sky.

See Zenithal for a definition of the full transformation.

\theta = 90^{\circ} - 2 \tan^{-1}\left(\frac{\pi R_\theta}{360^{\circ}}\right)

Attributes Summary

inverse

Methods Summary

evaluate(x, y)

Attributes Documentation

inverse

Methods Documentation

classmethod evaluate(x, y)[source] [edit on github]

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