Comatic Aberration (Coma)

Coma, also known as “comatic aberration”, is a type of optical aberration that results in off-axis points of light appearing comet-shaped. As light rays from the edges of the frame pass through various parts of a spherical surface, they vary in magnification, creating a series of asymmetrical circular shapes of increasing sizes.

Difference between Chromatic Aberration and Comatic Aberration (Coma)
https://regulusastro.com/2018/12/27/comatic-aberration-and-chromatic-aberration/