A combust planet is a planet within 6.something degrees of the Sun.
Definition: “burnt,” from Old French combust (14c.), from Latin combustus, past participle of combuere “to burn up, consume” (see combustion). Also an astrological term for planets when near the sun (Dictionary).
http://www.youtube.com/watch?v=blz_axbSksQ
Introduction time +
Mercury: 4.18 mins
Moon: 4.34 mins
Venus: 7.25 mins
Mars: 8.02 mins
Jupiter: 9.22 mins
Saturn: 10.13 mins