How Far Away Is It - 2017 Review - Gamma Ray Bursts
David Butler
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This is the "How Far Away Is It" video book channel. It is a video book of Hubble and other Space and ground based Telescope pictures together with an illustrated explanation of how we know how far away these objects are - from your back yard to the most distant galaxies. See how: Triangulation can take us across the globe Parallax can take us across the solar system Standard candles can take us across the Milky Way Red-shift can take us across the universe. The video book contains three chapters: The Solar System; The Milky Way; and Galaxies. A Distance Ladder foundation is built in segments 2 (The Earth) through 6 (Distant Stars). The amazing celestial object photography begins with segment 7 ( Planetary Nebula). Many viewers may want to start there. Students, new to Astronomy, should start from the beginning. There is also a preface and a segment on credits with websites identified that can be used for further research by interested viewers.
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Text & Music at: http://howfarawayisit.com/wp-content/uploads/2018/02/2017-Review.pdf Index - http://howfarawayisit.com/wp-content/uploads/2020/12/How-Far-Index.pdf Music free version: https://www.youtube.com/playlist?list=PLpH1IDQEoE8TUajDiQJ3zpXW-KL0MD3gg This is a segment of the "How Far Away Is It" 2017 review. 2017 was another very interesting year with a number of firsts. We detected our first asteroid from another star; a Type 1a Supernova companion survivor; a star collapse into a black hole without a supernova; a gravitationally lensed Type 1a Supernova; a non-elliptical early dead galaxy; colliding neutron stars; and visual confirmation of a gravitational wave.
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