The sun is probably the closest thing we’ll ever have to a true Eldritch Abomination. Hear me out here-
- Older than recorded history; was here longer than any of us and will be here long after we leave. Has a finite beginning and end but is still incomprehensibly ancient
- Burns itself into your vision instantly and can blind you if you look for too long
- Further prolonged exposure can cause cancerous growths
- Non-humanoid shape floating through space; colossal flaming tentacles angrily lash out on occasion
- Sort of just appeared one day and is now surrounded by the corpses of its stillborn children
- People used to sacrifice other people to appease it
- Pretty sure it screams at us sometimes
Not to mention, is foretold that one day it will swallow up and destroy the Earth in its death throes.