# Hayashi limit

> English word · Noun

## Definitions
1. A theoretical maximum radius of a star of given mass; the radius at which the inward force of gravity exactly balances the outward pressure of the gas of the star.

## Etymology
Named after Japanese astrophysicist Chushiro Hayashi (25 Jul 1920–28 Feb 2010).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/hayashi-limit