That maximum, first derived in 1926 by English astrophysicist Arthur Eddington, is set by the force of radiation flowing through the hot outer layers of a star.

• 这个亮度极大值，是考虑穿过星体高热外层的辐射压力而得的，由英国的天文物理学家艾丁顿（ArthurEddington）于1926年首先导出。