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Beginners Workshop 1 Mike Whybray

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Beginners Workshop 1 Mike Whybray

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    1. Beginners Workshop 1 Mike Whybray What is astronomy? Our universe - Cosmology Observing - What can you actually see? Telescopes - Choosing one

    4. Cosmology Structure of the universe Size and scale: solar system stars galaxies everything History of the universe: Big Bang, Inflation etc.

    5. Size and Scale

    6. Earth

    7. Solar System

    10. The Nearest Stars

    11. Most of the stars we see unaided in the sky are within 250 light years

    12. View of the Milky Way Galaxy

    13. Galaxies and clusters of galaxies collect into vast streams, sheets and walls of galaxies

    14. The Visible Universe On the largest scales, the universe seems to be more or less uniform

    16. The Expanding Universe

    17. The Expanding Universe

    18. Expanding Space

    19. The Necessity of a Big Bang

    20. The Age of the Universe

    21. Looking Back Towards the Early Universe

    22. The Cosmic Background Radiation

    23. Cosmic Microwave Background

    26. Observing Constellations Planets The Moon Stars (doubles etc.) Star Clusters Nebulae Galaxies Comets The Sun Eclipses (solar & lunar) Occultations Aurora Noctilucent clouds Satellites Spectra

    46. Observing Constellations Planets The Moon Stars (doubles etc.) Star Clusters Nebulae Galaxies Comets The Sun Eclipses (solar & lunar) Occultations Aurora Noctilucent clouds Satellites Spectra

    48. Lunar Eclipse

    49. Solar Eclipse

    51. Occultations

    52. Noctilucent Clouds

    53. Spectra of Stars

    54. Telescopes Types of telescopes: Refractors and Reflectors How good is your telescope? Light gathering power Resolving power Magnifying power Choosing a telescope

    55. Refracting Telescope

    56. Galileo’s Refractor 1609

    59. Refracting/Reflecting Telescopes

    60. Isaac Newton’s Reflecting Telescope

    62. Cassegrain reflector

    65. Light-Gathering Power

    66. Resolving Power

    67. Magnifying Power

    68. Seeing

    69. Acknowledgements Most of these slides are adapted from ones downloaded from the Internet. My grateful thanks to those who so generously put them up there, particularly: Astronomy Lectures on Power Point: Perspectives on the Universe Dr. Philip Petersen, Solano College professor: http://www.empyreanquest.com/perspectives.htm Ken Broun Jr., Associate Professor Math, Physics and Astronomy, Tidewater Community College, Virginia Beach Campus: http://www.tcc.edu/faculty/webpages/KBroun/PowerPoint%20Slides%20Contents.htm and http://science.pppst.com/telescope.html

    70. Choosing a telescope Telescopes 101

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