There's no universally recognized symbol for Apollo that is definitively the sun. While Apollo is often associated with the sun and light, his symbol isn't a single, definitive image. Here's why:

* Multiple Attributes: Apollo was a multifaceted god in Greek mythology. He was associated with:

* The sun: His chariot was said to pull the sun across the sky.

* Music and poetry: He was the patron of music, poetry, and arts.

* Healing: He was associated with healing and disease prevention.

* Prophecy: He was the god of prophecy and oracles.

* Variety of Representations: As a result of his multifaceted nature, Apollo has been depicted in numerous ways throughout history:

* Chariot: He's often depicted driving a sun chariot.

* Lyre: He's frequently shown playing a lyre, a musical instrument.

* Bow and arrow: He was also a skilled archer and warrior.

* Laurel wreath: He is often portrayed wearing a laurel wreath, symbolizing victory and success.

While the sun might be the most prominent association with Apollo, it's not the only one, and therefore not his sole symbol.

It's important to remember that symbols are open to interpretation and may vary across different cultures and periods.