If you google search Stargazer Chair (go ahead try it) it comes up with several different names for this type of chair. It also says that it’s the simplest chair in the world to make.
You can find lots of examples, some are carved, painted or left plain.
Each one I make is a little different from the last giving them each a character of thier own.
They are 91cm high X 44cm Wide X 70cm Deep approximately when erected. Weighs a little over 6kgs and you may have noticed it comes in two parts.
I think it’s quite comfortable too, but that’s just my opinion.