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gptkbp:instanceOf
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gptkb:scientific_laws
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gptkbp:alsoKnownAs
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gptkb:Kepler's_laws_of_planetary_motion
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gptkbp:appliesTo
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gptkb:binary_stars
satellites
planets in the Solar System
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gptkbp:field
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gptkb:astronomy
physics
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gptkbp:firstLaw
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The orbit of a planet is an ellipse with the Sun at one of the two foci.
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gptkbp:firstLawYear
|
1609
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gptkbp:formedBy
|
gptkb:Johannes_Kepler
17th century
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gptkbp:influenced
|
Isaac Newton's law of universal gravitation
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gptkbp:influencedBy
|
Tycho Brahe's observations
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gptkbp:numberOfFloors
|
3
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gptkbp:precededBy
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gptkb:Copernican_heliocentrism
|
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gptkbp:publishedIn
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gptkb:Astronomia_Nova
gptkb:Harmonices_Mundi
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gptkbp:secondLaw
|
A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.
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gptkbp:secondLawYear
|
1609
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gptkbp:thirdLaw
|
The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.
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gptkbp:thirdLawYear
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1619
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gptkbp:bfsParent
|
gptkb:Astrodynamics
gptkb:Ordinary_Differential_Equations
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gptkbp:bfsLayer
|
7
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https://www.w3.org/2000/01/rdf-schema#label
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Kepler's laws
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