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TELESCOPES TELESCOPES

TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

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Page 1: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

TELESCOPESTELESCOPES

Page 2: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

Why Using Telescopes ?Why Using Telescopes ?

- See further

>>>> Light gathering power

- See more details

>>>> Resolution

- See different things

>>>> Full electromagnetic spectrum range

Page 3: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 4: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 5: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 6: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 7: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 8: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 9: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 10: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 11: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 12: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 13: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 14: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 15: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 16: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 17: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 18: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 19: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 20: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

IMAGING THROUGH THE ATMOSPHEREIMAGING THROUGH THE ATMOSPHERE

Time t1Time t2

Page 21: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

IMAGING THROUGH THE ATMOSPHEREIMAGING THROUGH THE ATMOSPHERE

Time t1Time t2

Page 22: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

IMAGING THROUGH THE ATMOSPHEREIMAGING THROUGH THE ATMOSPHERE

Time t1Time t2

Page 23: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

IMAGING THROUGH THE ATMOSPHEREIMAGING THROUGH THE ATMOSPHERE

Time t1Time t2

Page 24: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

IMAGING THROUGH THE ATMOSPHEREIMAGING THROUGH THE ATMOSPHERE

Time t1Time t2

Page 25: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

HOW DOES THAT LOOK ON REAL IMAGES ?HOW DOES THAT LOOK ON REAL IMAGES ?

Ilnl.gov

Page 26: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 27: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 28: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 29: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 30: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 31: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 32: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 33: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 34: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 35: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 36: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 37: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 38: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 39: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 40: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 41: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 42: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 43: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 44: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting
Page 45: TELESCOPESRefracting telescope: Lens focuses light onto the focal plane Reflecting telescope: Concave mirror focuses light onto the focal plane Almost all modern telescopes are reflecting

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