PPT-2.4m Space Telescopes

Hardware Summary September 4 2012 1 This document is not subject to the controls of the International Traffic in Arms Regulations ITAR or the Export Administration Regulations EAR Hardware Summary. meeting #2. Good use for diffraction: . exoplanets. Good use for diffraction: . exoplanets. Chromatic aberration. Spherical aberration. Parabolic. Spherical. Coma. Astigmatism. (e.g., Hale telescope). Telescopes. Key Concepts. What are the regions of the electromagnetic spectrum?. What are telescopes and how do they work?. Where are most large telescopes located?. Telescopes - Key Terms. Telescope. Telescopes were first invented around the year 1600. . Galileo . Galilei was an early astronomer who first used telescopes to view objects in our solar system. . He . made many important discoveries including: the moon was covered in mountains and Jupiter had 4 large moons.. The most important property of a telescope? . No, it’s not it’s “power” or magnifying ability, it is……. Its . Light Gathering . power! So, . t. he diameter of the mirror or lens is THE most important property. So, if you are not sure, do your best to guess.. Please bring pencil(s) so that you can fill out. the scantrons.. No other accessories (calculators, cell phones, …) are allowed.. Important: Anything in the posted slides that I did not cover in class could be on the exam.. Agenda. Turn in Displacement Lab work. Turn in Permission slips. Notes on . Studying Space & . Exploring . Space packet. Studying space from Earth. Tele. = distance. Scopos. = to watch. Light and radiation (energy in the form of waves that travel through empty space). Big. . Glass. Giant Magellan Telescope (GMT). Las . Campanas. , Chile. First Light 2024. Large Binocular Telescope (LBTO). Mt Graham, AZ, 2007. Large Synoptic Survey Telescope (LSST), Cerro . Pachon. Why . do we need telescopes?. Humans can only see 6000 stars at night and cannot resolve (discern) the detail of objects in the sky if they are too close together. . Humans also cannot see anything but visible light. . Chapter 3 Telescopes. © 2017 Pearson Education, Inc.. Units of Chapter 3. Optical Telescopes. Telescope Size. High-Resolution Astronomy. Radio Astronomy. Space-Based Astronomy. Summary of Chapter 3. Agenda. Turn in Displacement Lab work. Turn in Permission slips. Notes on . Studying Space & . Exploring . Space packet. Studying space from Earth. Tele. = distance. Scopos. = to watch. Light and radiation (energy in the form of waves that travel through empty space). SPECTROSCOPY. Uses visible wavelength split into colors. Doppler shift. Wavelengths change when object is moving. Red/ . Blue. Shift. RECEDING (moving away) objects show a INCREASE in WAVELENGTH- red shift. Diffraction of Light. Newton pointed . out in his 1704 book . Opticks. , that "Light is never known to follow crooked passages nor to bend into the shadow". . This concept is consistent with the particle theory, which proposes that light particles must always travel in straight lines.. . Size does matter. The bigger, the better. 2. Resolve detail. 3. Magnification. Only important for solar system objects. Refracting Telescopes. Cheap. Good for bright objects. Basic design. Reflecting Telescopes. EEE Project. E. . Bossini. , C. Cicalò, . D. De . Gruttola,. I. . Gnesi. , M. Garbini, S. . Grazzi. , M.P. . Panetta. EEE meeting. 22. /03/. 2017. beta . ditributions. . for . all. . telescopes. .