The planet Kolob is mentioned in the writings of Abraham in the third chapter. Here is what is written on Kolob:
In a Mormon scripture entitled Pearl of Great Price.
The Book of Abraham, published in March 1842, gives us a grand view of the stars, planets, and the residence of God. ... Thus Kolob, the star which governs planets of the same order as the earth, is similar to the sun, which Africanus calls "the prince, Lord and ruler of all the other worlds, the mind and guiding principle of the entire universe."
Offered by Christer.