The size of the Sun
Soft Condensed Matter
2024-01-31 v1 Solar and Stellar Astrophysics
Physics Education
Abstract
Why does the Sun have a radius around 696000~km? We will see in this article that dimensional arguments can be used to understand the size of the Sun and of a few other things along the way. These arguments are not new and can be found scattered in textbooks. They are presented here in a succinct way in order to better confront the kinematic and mechanical viewpoints on size. We derive and compare a number of expressions for the size of the Sun and relate large and small scales. We hope that such presentation will be useful to students, instructors and researchers alike.
Cite
@article{arxiv.2401.17105,
title = {The size of the Sun},
author = {Marc-Antoine Fardin and Mathieu Hautefeuille},
journal= {arXiv preprint arXiv:2401.17105},
year = {2024}
}
Comments
8 pages, 1 figure