PPT-Telescopes

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. Big Science: Big Telescopes. Jodrell Bank Discovery Centre. Contents. Part 1: Gravity on Earth. Mass or weight?. The strength of Earth’s gravity. Part 2: Big Telescopes. How do we see space?. Part 3: Gravity in Space. 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 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.. Optical Telescopes. Ground based and on satellites. Observations are recorded using a camera instead of the human eye most times. . This is so we can separate colors into light and using times to study changes over time.. S. R. Kulkarni. Caltech Optical Observatories. Workhorse Instruments. Optical Imagers & Spectrographs. NIR Imagers & Spectrographs and so on. Specialized Instruments. Polarimeters. , Rapid spectroscopy, .. . 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. 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. From geocentric to heliocentric and beyond. By brain . cannon, . 1. st. Period PLTW. Earth-centered universe. Sun-centered universe. Forward Thinking. “. By . taking our sense of sight far beyond the realm of our forebears' imagination, these wonderful instruments, the telescopes, open the way to a deeper and more perfect understanding of nature. How astronomers study space. Electromagnetic Radiation (EMR). Light can travel through empty space. All EMR travels at the speed of light. . 3 x 10. 8. m/sec. Astronomers study different types of EMR. 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. 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.. Ninth Edition. Neil F. Comins • William J. Kaufmann III. CHAPTER 3. Light and Telescopes. WHAT DO YOU THINK?. What is light? . What type of electromagnetic radiation is most dangerous to life?. What is the main purpose of a telescope? .