Sky2Pix_SansonFlamsteed¶

class astropy.modeling.projections.Sky2Pix_SansonFlamsteed(*args, **kwargs)[source]¶

Sanson-Flamsteed projection - sky to pixel.

Corresponds to the SFL projection in FITS WCS.

\[\begin{split}x &= \phi \cos \theta \\ y &= \theta\end{split}\]