# Sky2Pix_Molleweide¶

class astropy.modeling.projections.Sky2Pix_Molleweide(*args, meta=None, name=None, **kwargs)[source] [edit on github]

Molleweide’s projection - sky to pixel.

Corresponds to the MOL projection 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) Evaluate the model on some input variables.

Methods Documentation

classmethod evaluate(phi, theta)[source] [edit on github]

Evaluate the model on some input variables.