>>3150
dude i live in northern europe but not the fucking north pole i can see orion and sirius but its low on the horizon. cool pic Alice how did you take them?

>>3148
>The Greek astronomer Posidonius observed that Canopus just grazed the horizon in his home island Rhodes while it rose several degrees above the horizon in Alexandria, Egypt. From this he managed to calculate the earth's circumference with high precision around 100 BC but many argue it was just a lucky guess.
lmao i looked it up on wikipedia so the guy got both angle of the star and distance rhodes alexandria wrong but still magically came up with almost exactly the right circumference of the earth
https://en.wikipedia.org/wiki/Posidonius#Earth‘s_circumference