Noctural animals have large pupils 2 bring in more light-what does this have2do with astronomical telescopes?

Jasmine Asked:

"Why do nocturnal animals usually have large pupils order prescription drugs in their eyes? How is this related to astronomical telescopes?"

Reply:

Rules # 1, # 2 and # 3 in Astronomy telescopes:
1) Aperture
2) Aperture
3) Aperture

US Auctions Australian Auctions Austrian Auctions Belgian Auctions Canadian Auctions French Auctions German Auctions Indian Auctions Irish Auctions Italian Auctions Dutch Auctions Polish Auctions Spanish Auctions Swiss Auctions UK Auctions

Best Match Time: ending soonest Time: newly listed Price: lowest first Price: highest first Price + Shipping: lowest first Price + Shipping: highest first

Binocular Astronomy by Stephen F Tonkin 2006 Paperback    US $5.55

Binocular Astronomy Patrick Moores Practical Astron    US $5.89

POPULAR ASTRONOMY Magazine CONSTELLATIONS STAR CHARTS TELESCOPE BINOCULAR GUIDE    US $10.95