Credit: ANIMATE4.COM/SCIENCE PHOTO LIBRARY

Caption: Animation showing Kepler's first law of planetary motion. Kepler's three laws were published in 1609 (first and second laws) and 1619 (third law). The first law states the the orbit of each planet is an ellipse, with the Sun at one focus. The animation shows the properties of an ellipse, the blue line: the Sun is at one focus, the pink dot shows the other focus. The foci are equidistant from the centre (orange dot). The semi-major axis (a) is red. The lines joining the planet to each focus always add to a value twice that of the semi-major axis.

Release details: Model release not required. Property release not required.

Keywords: 1st, animated, animation, area, astronomical, astronomy, axes, black background, celestial, constant, demonstration, diagram, diagrammatic, earth, education, educational, ellipse, ellipses, equal, first, foci, focus, graphic, graphical, gravitation, gravity, kepler, kepler's laws, law, mathematical, mathematics, mechanics, motion, orbit, orbital, orbiting, orbits, period, periods, planet, planetary, planets, semi-major axis, solar system, star, sun

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Kepler's 1st law of planetary motion

K003/1179 Rights Managed

Downloadable master

Duration: 00:00:20

Frame size: 1920x1080

Frame rate: 24

Audio: No

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

File size: 107.5M

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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