Use the small angle approximation to calculate the angular size of Venus, in arcseconds at both its closest approach to Earth and its most distant.
Venus diameter = 1.2x104 km
Closest approach: Distance = 4.47x10 km
Furthest approach: Distance = 1.94x108 km
How did Galileo's observations of the changing angular size of Venus help prove the heliocentric
model of the Solar System?
Note 1 radian = 206265 arcseconds
Please upload your work to the dropbox provided.

Hey everyone! this question is a challenge question. for 50 points if you wish. all you have to do is answer the correct it has to be correct, in under 50 seconds, and i will make you the ! you want to accept this challenge. i already know! i mean, it's 50 free points! here is the question: 11x2= answer this correct, you get two prizes. don't forget. you only have 50 seconds or it wont happen. get it correct in under 50 seconds! that's not bad. so stop reading this long thing and !