Cubes Quote by Johannes Kepler
“The squares of the periodic times are proportional to the cubes of the mean distances from the sun.”
About This Quote
Source Book: Astronomia Nova, 1609
Planetary orbital periods relate mathematically to their distances from the Sun, revealing a universal law.
In simple terms: Orbit time links to distance from Sun.
Key Takeaway
Study the law linking distance and period.
Themes
astronomy
physics
mathematics
Mood
analytical
curious
Type
scientific
educational
When to use this quote
- planetary motion
- satellite design
- space travel
Key Concepts
Kepler’s law
orbital mechanics
celestial distances
Questions to Reflect On
- How does this law apply to exoplanets?
- What limits does it have in modern astronomy?
A Different Perspective
Exceptions exist for non‑circular orbits.
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![“So, Fabricius, I already have this: that the most true path of the planet [Mars] is an ellipse, which Dürer also calls an oval, or certainly so close to an ellipse that the difference is insensible.” quote by Johannes Kepler](https://sms4smile.com/quotes/img-quotes/a6b/johannes-kepler-4278_differences_so-fabricius-i-already-have-this-that-th_311054.jpg)
