Sky2Pix_Molleweide¶
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class
astropy.modeling.projections.Sky2Pix_Molleweide[source] [edit on github]¶ Bases:
astropy.modeling.projections.Sky2PixProjection,astropy.modeling.projections.PseudoCylindricalMolleweide’s projection - sky to pixel.
Corresponds to the
MOLprojection in FITS WCS.\[\begin{split}x &= \frac{2 \sqrt{2}}{\pi} \phi \cos \gamma \\ y &= \sqrt{2} \frac{180^\circ}{\pi} \sin \gamma\end{split}\]where \(\gamma\) is defined as the solution of the transcendental equation:
\[\sin \theta = \frac{\gamma}{90^\circ} + \frac{\sin 2 \gamma}{\pi}\]Methods Summary
evaluate(phi, theta)Methods Documentation
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classmethod
evaluate(phi, theta)[source] [edit on github]¶
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classmethod