The conversation between human and AI assistant.
What is mass of the sun?
Hmm interesting. Speaking of orbits, what is the difference between a geocentric and a heliocentric model of the solar system?
The geocentric model assumes that the Earth is the center of the solar system and that all other celestial bodies orbit around it. The heliocentric model, on the other hand, places the sun at the center of the solar system, with the planets orbiting around it.