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Stargazing Basics 3: Measure distance in sky


Credit eyesontheskyDOTcom

Learn the basics of measuring distance in the night sky for beginning astronomy, starting with the full sky and horizon-to-zenith concepts, and then discussing how to measure smaller distances in the sky with just your hand and outstretched are, so you easily can find dimmer objects from brighter stars in the sky - all in a friendly, easy-to-understand presentation.



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Blobrana


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Stargazing Basics 2: Understanding magnitudes

Learn the basics of magnitudes (brightness differences of objects) in the night sky for beginning astronomy. Video discusses visual magnitude from the Sun through 11th magnitude, explaining the scale's logarithmic method of calculating brightness, plus the concepts of absolute magnitude, integrated magnitude and surface brightness - all in a friendly, easy-to-understand presentation.



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Blobrana


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Stargazing Basics 1: Getting oriented

Learn the basics of orienting yourself in the night sky for beginning astronomy, starting with the cardinal directions, and moving through the concepts of the meridian, zenith, ecliptic, celestial sphere, celestial equator and celestial pole - all in a friendly, easy-to-understand presentation.



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