Definitions for "Combust"
Burnt; consumed.
So near the sun as to be obscured or eclipsed by his light, as the moon or planets when not more than eight degrees and a half from the sun.
A planet is combust if it lies in the same sign as the Sun beyond the Sun's body (17') but within the moiety or half-orb (8.5 degrees ) of the Sun. Being combust burns up and thus weakens a planet. Traditionally the Moon is especially debilitated when combust.
get very angry and fly into a rage; "The professor combusted when the student didn't know the answer to a very elementary question"; "Spam makes me go ballistic"
cause to become violent or angry; "Riots combusted Pakistan after the U.S. air attacks on Afghanistan"