How much is 200000 K?

Answer 1

To the extent that the question does not contain its own answer, I'm uncertain what you're trying to ask. K is a common abbreviation for 1000 (or, in computer science, 1024) so it could be the numeric part multiplied by one or the other of those factors.

In computer science, 200000 K-whatevers would be about 200 M-whatevers, or 0.2 G-whatevers. "About" because there's some ambiguity over whether the 1000 or 1024 definition is what's being used.

In terms of temperature, "really really hot." "Orders of magnitude hotter than the surface of the Sun (which is about 6000 K)" type hot, but not quite as hot as the core of the Sun, which is well over ten million K.