Ellipsoids and Geodesy

This chapter delves into reference ellipsoids and their use in healpix-geo.

Introduction

The Earth is not a perfect sphere but an ellipsoid flattened at the poles.

For more details, see:

• Reference system - Complete Reference Systems

• Ellipsoids basics - Tutorial on Ellipsoids

• HEALPix Extension to Ellipsoids - Extension of the HEALPix pixelation scheme to ellipsoidal Earth models