Alternative form of gravity darkening

(physics, astronomy) Of a star, specifically its equator: darker due to gravity darkening.

(physics, astronomy) The phenomenon of a star rotating so rapidly that it is oblate, with a larger radius and thus lower surface gravity at the equator (which is thus cooler and darker: gravity-darkened), and higher surface gravity at the poles (which are hotter and brighter: gravity brightened).

Alternative form of limb darkening

(physics, astronomy) Darkened by limb darkening.

Alternative form of limb-darkened

(physics, astronomy) The optical effect where the edge of the disk of a star appears darker than the center of the disk.

The worst situation comes before a good one.

Alternative form of the darkest hour is just before the dawn

Alternative form of the darkest hour is just before the dawn