Sky2Pix_Stereographic¶
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class
astropy.modeling.projections.Sky2Pix_Stereographic[source] [edit on github]¶ Bases:
astropy.modeling.projections.Sky2PixProjection,astropy.modeling.projections.ZenithalStereographic Projection - sky to pixel.
Corresponds to the
STGprojection in FITS WCS.See
Zenithalfor a definition of the full transformation.R_\theta = \frac{180^{\circ}}{\pi}\frac{2 \cos \theta}{1 + \sin \theta}
Methods Summary
evaluate(phi, theta)Methods Documentation
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classmethod
evaluate(phi, theta)[source] [edit on github]¶
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classmethod