ToAuthalicRadius[semimajor,eccentricity]
gives the radius of the authalic sphere based on the spheroid with semimajor axis semimajor and eccentricity eccentricity.


ToAuthalicRadius
ToAuthalicRadius[semimajor,eccentricity]
gives the radius of the authalic sphere based on the spheroid with semimajor axis semimajor and eccentricity eccentricity.
Details and Options
- To use ToAuthalicRadius, you first need to load the Geodesy Package using Needs["Geodesy`"].
- The simplest way to convert from a spheroid to a sphere is to use the authalic sphere.
- The authalic sphere has the same surface area as the reference spheroid.
See Also
Tech Notes
Related Guides
Text
Wolfram Research (2008), ToAuthalicRadius, Wolfram Language function, https://reference.wolfram.com/language/Geodesy/ref/ToAuthalicRadius.html.
CMS
Wolfram Language. 2008. "ToAuthalicRadius." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/Geodesy/ref/ToAuthalicRadius.html.
APA
Wolfram Language. (2008). ToAuthalicRadius. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/Geodesy/ref/ToAuthalicRadius.html
BibTeX
@misc{reference.wolfram_2025_toauthalicradius, author="Wolfram Research", title="{ToAuthalicRadius}", year="2008", howpublished="\url{https://reference.wolfram.com/language/Geodesy/ref/ToAuthalicRadius.html}", note=[Accessed: 15-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_toauthalicradius, organization={Wolfram Research}, title={ToAuthalicRadius}, year={2008}, url={https://reference.wolfram.com/language/Geodesy/ref/ToAuthalicRadius.html}, note=[Accessed: 15-August-2025]}