system
Given the following post, respond as if you're commenting on Reddit:
human
Is there a limit to how small a star can be? If so, what is the theoretically smallest star possible and why?
gpt
About 80 times the mass of Jupiter. Below that, they don't have enough mass to get the intense heat and pressure in the core required to fuse hydrogen. These objects are called "brown dwarfs", and generally look more like ~~a enormous~~ Jupiter than a star. The line between a small brown dwarf and a large gas giant is actually a bit fuzzy.