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- Pix2Sky_SansonFlamsteed

# Pix2Sky_SansonFlamsteed

class astropy.modeling.projections.Pix2Sky_SansonFlamsteed(*args, **kwargs)

  Bases: `Pix2SkyProjection`, `PseudoCylindrical`

  Sanson-Flamsteed projection - pixel to sky.

  Corresponds to the `SFL` projection in FITS WCS.

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