Bases: astropy.modeling.projections.Pix2SkyProjection, astropy.modeling.projections.PseudoCylindrical
Molleweide’s projection - pixel to sky.
Corresponds to the MOL projection in FITS WCS.
\phi &= \frac{\pi x}{2 \sqrt{2 - \left(\frac{\pi}{180^\circ}y\right)^2}} \\ \theta &= \sin^{-1}\left(\frac{1}{90^\circ}\sin^{-1}\left(\frac{\pi}{180^\circ}\frac{y}{\sqrt{2}}\right) + \frac{y}{180^\circ}\sqrt{2 - \left(\frac{\pi}{180^\circ}y\right)^2}\right)
Methods Summary
evaluate(x, y) |
Methods Documentation