Bases: astropy.modeling.projections.Sky2PixProjection, astropy.modeling.projections.PseudoCylindrical
Molleweide’s projection - sky to pixel.
Corresponds to the MOL projection in FITS WCS.
x &= \frac{2 \sqrt{2}}{\pi} \phi \cos \gamma \\ y &= \sqrt{2} \frac{180^\circ}{\pi} \sin \gamma
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