An astronomer from long ago who was extremely picky about making very accurate star maps and star descriptions.
He lived on an island and got paid handsomely by the King to study astronomer. He was lucky enough to have his own team of laborers and assitants to help him build really huge instruments like compasses, telescopes, etc.
Unfortunately he did not believe that the Sun was the center of the universe, because he tried to measure the stars positions and see if they moved throughout the year, but he didn't notice any movements. The thing is, the stars are extremely, mind-bogglingly far away. But he still should have figured out that the Earth was not the center of the universe, if only because of the retrograde motion of Jupiter and Mars, and also because of the fact that Jupiter itself has its own moons. Oh well, it was a bit hard to go against that church dogma that said we lived in a geocentric universe. And how would these old astronomers have known just how far away the stars are?
2. Someone who is extremely anal about measurements
Mark72329: "Wanna know how big I am down there, sweetie?"
girlyxoxo923: "yeah hunk tell me"
Mark72329: "Well according to my most recent calculations I'm just about 5.825 inches. Isn't that big?"
girlyxoxo923: "wtf - gosh, GAL dude... umm and that's not big sorry"
2. One of the two main characters in the web-comic Penny Arcade
2. "Tycho Brahe is my favorite character on Penny Arcade, Gabe can suck it."