Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Hubble Space Telescope wikipedia , lookup
Arecibo Observatory wikipedia , lookup
Lovell Telescope wikipedia , lookup
Allen Telescope Array wikipedia , lookup
James Webb Space Telescope wikipedia , lookup
Spitzer Space Telescope wikipedia , lookup
Optical telescope wikipedia , lookup
CfA 1.2 m Millimeter-Wave Telescope wikipedia , lookup
International Ultraviolet Explorer wikipedia , lookup
Astronomy 100 Chapter 5 Classwork/Homework Answers 1. Which of the following electromagnetic waves can be observed from ground based telescopes? Which can be observed from space based telescopes? Check all that apply. Wavelength Band On Ground? In Space? Radio X X Ultraviolet X Visible X X X-ray X Infrared X Gamma X 2. Indicate whether the description is for a reflecting telescope, a refracting telescope, or both. Reflector Refractor Large lens X Bounces light X Causes light rays to converge X X May produce rainbow around image X Bends light X Large mirror X Magnifies image X X May produce fuzzy image X 3. Sketch the light rays for a basic refractor. 4. Adaptive optics is the use of a computer to adjust for atmosphere distortions by altering the curvature of mirrors. Extra Credit: (2 Points Each) Ciardi, T Answers HW C5 A. Compare LGP (Keck) = (10 m)2 = 100 = 1,562,500 2 LGP (Eye) (0.008 m) 0.000064 The Keck telescope has more than 1.5 million times greater LGP than your eye. B. α = 2.06 x 105 x 550 x 10-9 m = 0.4532 arcseconds 0.25 m This resolution will allow you to see any double stars with a separation equal to or greater than 0.4532 arcseconds. We would be able to see the two stars. Ciardi, T Answers HW C5