The act or process of becoming bright or brighter. → limb brightening, → gravity brightening
Verbal noun of brighten, from → bright.
Fr.: embrillancement gravitationnel
→ gravity; → brightening.
Fr.: embrillancement centre-bord
An observed increase in the intensity of radio, extreme ultraviolet, or X-radiation from the Sun from its center to its limb.
→ limb; → brightening.