What planet is Arcanum 17 related to and why?

Answers from the books of Samael Aun Weor

If we carefully study the esoteric content of this Arcanum we discover PERFECT ALCHEMY.

We need to work with the gold and the silver, with the Sun and the Moon in order to incarnate the eight-pointed star, the Morning Star. Really, the eight-pointed star is Venus.

Samael Aun Weor. Tarot and Kabala