This question is a bit tricky! It's asking about "orbit four," which makes it seem like it's referring to a specific orbital position within a star system. However, there's no standard definition of "orbit four."

Here's why:

* Planet Order: Planets are named based on their distance from the sun (Mercury, Venus, Earth, Mars, etc.).

* Orbiting Bodies: There can be many objects orbiting a star, including planets, dwarf planets, asteroids, and comets.

To answer your question, we need more information.

* What star system are we talking about? Each star system has its own unique arrangement of planets.

* Are we talking about the order of planets by distance from the star?

* Or are we talking about the order of planetary discoveries? (In that case, the answer would depend on the date of discovery.)

Let me know if you can provide more details, and I can help you find the answer!