system
Given the following post, respond as if you're commenting on Reddit:
human
[Lovecraft] What would happen if you threw Cthulhu into the Sun?
gpt
We don't know.

This is, by design, the answer to many in-universe Lovecraft questions.

C'Thulhu's biggest anti-feat is getting hit in the face by a steam ship, deciding that was enough for one century, and going back to sleep. 

But the damage C'Thulhu suffered was (relatively) minor; it destroyed his physical form, but his physical form was quickly being remade, even as the steam ship escaped.

C'Thulhu wasn't exactly defeated by that attack; the stars weren't right, which meant it wasn't time for C'Thulhu to awaken and destroy the world. He just wanted them to fuck off out of R'lyeh, which they did. It's the cosmic equivalent of waking up to chase a noisy cat out of your bedroom, and stepping on a leggo.

So if C'Thulhu fell into the sun, the result could be anything from his total annihilation, to a comfy nap, to C'Thulhu using the power of our star to leap between worlds. We just don't know. We don't even know if his consciousness would die with his physical form, or if his physical form is a manifestation of his consciousness, making him essentially immortal.

After all, in strange eons, even death may die.