kepler's second law   (TTS Sound)

The kepler's_second_law has 1 Senses.

• law of areas, law of equal areas, kepler's second law
• a law concerning the speed at which planets travel; a line connecting a planet to the sun will sweep out equal areas in equal times; "Kepler's second law means that a planet's orbital speed changes with its distance from the sun"
• 惑星の動く速度についての法則