Beta 4

Beta 4, or Beta IV, is five planets up from Beta-Nine in the Beta System. Kup has been to both, apparently, and fighting Scourge and Cyclonus seems to remind him of one of his battles at either planet. According to Kup, Beta 4 has some incredibly thick dust and is inhabited by Ick-Yaks.

The Transformers cartoon
Kup encountered with a gigantic Ick-Yak on Beta 4.