1
Q
What is a Parsec?
A
3.26 light years of distance. It is the distance of something that has a parallax angle of 1 Arc Second.
2
Q
What is an Arc Second?
A
1/3600 of a degree.
Astronomy & Other
flashcards
Decks in class (59)
# Cards
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The Scale of the Large2
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The Scale of the Small3
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Introduction to Light6
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Four Fundamental Forces7
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Scale of Earth and Sun4
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Scale of the Solar System and Galaxy and Intergalactic Scale8
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Scale of Distance to Closest Stars3
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Hubble Images of Galaxies1
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Cosmological Time Scale and Radius of Observable Universe9
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Big Bang Introduction4
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The Red Shift3
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Cosmic Background Radiation5
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Hubble's Law5
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A Universe smaller than the Observable3
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The Birth of Stars and Star Field/Nebula Images6
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Becoming a Red Giant and the Lifecycle of Massive Stars4
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White and Black Dwarfs8
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Supernova and Supernova Clarification9
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Black Holes4
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Supermassive Black Holes2
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Quasars4
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Galactic Collisions2
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Parallax in Observing Stars2
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Stellar Parallax3
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Stellar Distance using Parallax2
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Parsec Definition2
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Cepheid Variables2
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Why Cepheids Pulsate2
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Why Gravity gets so strong near Dense Objects1
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Plate Tectonics: Difference between Crust and Lithosphere2
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Structure of the Earth and the Compositional and Mechanical Layers10
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Plate Tectonics: Movement3
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Plate Tectonics: Geological Features of Divergent Plate Boundaries3
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Plate Tectonics: Convergent Plate Boundaries3
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Plate Tectonics: Plate Movement due to Convection3
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Hawaiian Islands Formation3
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Pangaea3
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How we know about the Earth's Core4
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Seismic Waves8
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Why S-waves only travel in solids1
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Refraction of Seismic Waves2
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The Mohorovicic Seismic Discontinuity3
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Seasons aren't dictated by closeness to the Sun2
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How Earth's Tilt Causes Seasons2
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Are Southern Hemisphere Seasons More Severe?5
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Milankovitch Cycles6
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Precession Causing Perihelion to Happen Later8
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What causes Precession and other Orbital Changes2
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Apsidal Precession (Perihelion Precession) and Milankovitch Cycles9
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Earth Formation4
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Beginnings of Life6
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Ozone Layer and Eukaryotes showing up in the Proterozoic Eon6
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Biodiversity flourishes in the Phanerozoic Eon7
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First Living Things on Land Clarification3
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Human Evolution Overview3
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Understanding Calendar Notation and Correction Calendar Notation6
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Agriculture and Writing5
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Firestick Farming5
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Collective Learning7
