The planet while in transit, comes near the Sun and is divested of its brightness and said to be combust. This is the state(avastha) of a planet when he is not in a position to give good effect or the results of the house owned.
The following table will give the state when a planet becomes combust.
|Planets||Combust in Direct Motion||Combust in Retrograde Motion|
Note: Rahu and Ketu, being only mathematical points, are not treated as
combust. But they eclipse or obstruct the Sun.
A basic phenomena in combustion is that the combust planet does not heliacally rise during the period of combustion but is set.