Bases: astropy.modeling.projections.Pix2SkyProjection, astropy.modeling.projections.PseudoConic
Bonne’s equal area pseudoconic projection - pixel to sky.
Corresponds to the BON projection in FITS WCS.
\phi &= \frac{\pi}{180^\circ} A_\phi R_\theta / \cos \theta \\ \theta &= Y_0 - R_\theta
where:
R_\theta &= \mathrm{sign} \theta_1 \sqrt{x^2 + (Y_0 - y)^2} \\ A_\phi &= \arg\left(\frac{Y_0 - y}{R_\theta}, \frac{x}{R_\theta}\right)
Parameters: | theta1 : float
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Attributes Summary
param_names | |
theta1 |
Methods Summary
evaluate(x, y, theta1) |
Attributes Documentation
Methods Documentation