Telescopes. Images can be formed through reflection (mirror) or refraction (lens). Reflecting mirror Optical Telescopes.

Slides:

Advertisements

Similar presentations

Astronomy Notes to Accompany the Text

Advertisements

Chapter 6: Telescopes – Portals of Discovery. Visible light is only one type of electromagnetic radiation emitted by stars Each type of EM radiation travels.

Chapter 5 Telescopes. 5.1 Optical Telescopes The Hubble Space Telescope 5.2 Telescope Size The Hubble Space Telescope 5.3 Images and Detectors Diffraction.

How do we know what we know about the universe? By studying the energy ( light ) emitted by objects in space.

© 2011 Pearson Education, Inc. Lecture Outlines Astronomy Today 7th Edition Chaisson/McMillan © 2011 Pearson Education, Inc. Chapter 5.

Optics and Telescopes Chapter 5 Survey of Astronomy om astro1010-lee.com.

Chapter 3: Telescopes. Images can be formed through reflection or refraction. Reflecting mirror 3.1 Optical Telescopes.

1 Earth’s Atmosphere & Telescopes Whether light is absorbed by the atmosphere or not depends greatly on its wavelength. Earth’s atmosphere can absorb certain.

Telescopes. Act as “electromagnetic radiation catchers” Capture as much as possible Focus Magnifies images Telescopes that “catch” visible light are called.

Chapter 3: Telescopes. Goals Describe basic types of optical telescopes Explain why bigger is better for telescopes Describe how the Earth’s atmosphere.

January 24, 2006Astronomy Chapter 5 Astronomical Instruments How do we learn about objects too far away for spacecraft? How do telescopes work? Do.

Chapter 5 Telescopes. 5.1 Optical Telescopes The Hubble Space Telescope 5.2 Telescope Size 5.3 Images and Detectors 5.4 High-Resolution Astronomy 5.5.

Telescopes Section 15.1.

Space Technology Telescopes Chapter 18 Section 2.

Telescopes Chapter 5. Objectives   Telescopes……………Chapter 5 Objectives:   1. To list the parts of a telescope.   2. To describe how mirrors aid.

Chapter 5 Telescopes: “light bucket”. Telescopes have three functions 1.Gather as much light as possible: LGP ∝ Area = πR 2 LGP ∝ Area = πR 2 Why? Why?

ELECTRO MAGNETIC SPECTRUM The electromagnetic spectrum extends from wavelengths of many meters to wavelengths of submicroscopic size. Visible light has.

THE SUN-EARTH-MOON SYSTEM Chapter 28. The best tool to study the universe is the light emitted from it – Radiation We study Electromagnetic Radiation.

Telescopes. Telescope An instrument that collects electromagnetic radiation from objects in space Concentrates the electromagnetic radiation for better.

Telescopes What is the purpose of a telescope? What is the purpose of a telescope? To gather electromagnetic radiation in the form of visible light. It.

Tools for Studying Space. © 2011 Pearson Education, Inc. Telescopes.

Ch. 28 Sec. 1 Tools of Astronomy. Tools  Radiation  Light is the best tool used to observe and learn about the universe  Before telescopes, scientist.

© 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley This work is protected by U.S. copyright laws and is provided solely for the use of.

Telescopes Chapter 5. What do you think of when someone asks you about a telescope?       

Tools of Astronomy.

Tools and Technology Space Objects By: Brittany D. Alexander.

Tools of Astronomy. Electromagnetic Radiation Light travels as an “Electromagnetic” Wave The light you see is called Visible Light Speed of light: 186,000.

Lecture Outlines Astronomy Today 7th Edition Chaisson/McMillan © 2011 Pearson Education, Inc. Chapter 5.

 Students will be able to define electromagnetic radiation.  Students will be able to explain how telescopes work.  Students will be able to describe.

is transparent ERAU Astronomical Observatory Meade inch Schmidt Cassegrain Reflecting Telescope.

Section 1 – pg 590 Telescopes

© 2007 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.

Chapter 5 Telescopes Chapter 5 opener. This composite photograph shows two of the premier optical telescopes available to astronomers today. At the top,

Telescopes What is the purpose of a telescope? What is the purpose of a telescope? To gather electromagnetic radiation in the form of visible light. It.

Spectrums & Telescopes *A device that makes distant objects appear to be closer *They detect electromagnetic radiation – light or energy that can travel.

Astronomy: A Beginner’s Guide to the Universe Seventh Edition © 2013 Pearson Education, Inc. Chapter 3 Lecture Telescopes.

Tools of Astronomy Chapter 28.1 Pages The Best Tool The Light that comes to earth from distant objects is the best tool that astronomers can.

18-3 pgs  IN: What is a telescope? How is it used?

Electromagnetic Spectrum. -is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic.

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.

 From the ground the atmosphere distorts images.  Light pollution from streetlights, city lights, car lights, and more hinders the seeing conditions.

Topic: Telescopes PSSA: D/S8.A.2.2. Objective: TLW compare optical and nonoptical telescopes. TLW compare optical and nonoptical telescopes.

Space Tools Standard Compare the purposes of the tools & the technology that scientists use to study space.

Telescopes What is the purpose of a telescope?

TELESCOPES ALLOW US TO STUDY SPACE FROM EARTH!!!

The Tools of the Astronomer

© 2017 Pearson Education, Inc.

Chapter 5 Telescopes.

Ch.1, Sec.2 - Telescopes Optical Telescopes

TELESCOPES ALLOW US TO STUDY SPACE FROM EARTH!!!

Tools of Astronomy.

TELESCOPES What is the purpose of a telescope?

Tools of Astronomy.

Telescopes and the Electromagnetic Spectrum Section 3

Radio Astronomy.

Telescopes What is the purpose of a telescope?

Section 1.2 Telescopes allow us to study space from earth

Chapter 18 Section 2 Telescopes Bellringer

Telescopes 4/23/15 IN: What is a telescope? How is it used?

Unit E – Space Exploration

Telescopes Chapter 7 Lesson 1.

Unit 3, Section 1 Telescopes.

How Stars are Seen… Astronomy - Ch.20.

Telescopes Augmenting the Eye.

Sci. 1-3 Telescopes- then and Now Pages 18-23

Presentation transcript:

Telescopes

Images can be formed through reflection (mirror) or refraction (lens). Reflecting mirror Optical Telescopes

Refracting lens Optical Telescopes

Reflecting and refracting telescopes Optical Telescopes

Modern telescopes are all reflectors (use a mirror): Light traveling through lens is refracted differently depending on wavelength. Some light traveling through lens is absorbed. Optical Telescopes

Image acquisition: Charge- coupled devices (CCDs) are electronic devices, can be quickly read out and reset. Optical Telescopes

Interferometry: Combines information from several widely spread radio telescopes as if it came from a single dish. Radio Astronomy

Infrared radiation can image where visible radiation is blocked; generally can use optical telescope mirrors and lenses. Other Astronomies

Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. Other Astronomies

Electromagnetic Spectrum  All the types of radiation are shown on the electromagnetic spectrum from long wavelengths (radio) to short wavelengths (gamma).  We can only use our eyes to see a very small portion of the radiation that is emitted in the universe (visible light)

Electromagnetic Spectrum