Credit: ANIMATE4.COM/SCIENCE PHOTO LIBRARY

Caption: Animation showing Kepler's second law of planetary motion. Kepler's three laws were published in 1609 (first and second laws) and 1619 (third law). Kepler's second law states that a line linking the planet to the Sun sweeps out an equal area in any given time. At its furthest from the Sun, an area a1 is swept out in time t1. Closest to the Sun, an area a2 is swept out in time t2. If t1 and t2 are the same time, the areas a1 and a2 are identical. This is because a planet travels more quickly closer to the Sun.

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Keywords: 2nd, animated, animation, area, astronomical, astronomy, axes, celestial, constant, demonstration, diagram, diagrammatic, earth, education, educational, ellipse, ellipses, equal, foci, focus, graphic, graphical, gravitation, gravity, kepler, kepler's laws, law, mathematical, mathematics, mechanics, motion, orbit, orbital, orbiting, orbits, period, periods, planet, planetary, planets, proportional, proportionality, second, semi-major axis, solar system, star, sun, sweep, swept, white background

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Kepler's 2nd law of planetary motion

K003/1094 Rights Managed

Downloadable master

Duration: 00:00:10.06

Frame size: 1920x1080

Frame rate: 24

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 73.5M

Original

Capture format: QuickTime Animation

Codec: Photo - JPEG

Please contact Science Photo Library if you require the original, or other formats.

 

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