Johannes Kepler's 2nd law of Planetary Motion says:
A line joining a planet and the sun sweeps out equal areas during equal intervals of time.
What does that mean exactly ??
I understand that there is a Perihelion, when a planet or comet is closest to the sun. Then there is an Aphelion when it's farthest from the sun. But i don't understand the "sweeping out" part. can someone please explain ??
and one last question.
When i hear people say that
"this planet is blah blah blah million miles from the sun...."
are they talking about when the planet is in it's Perihelion stage or Aphelion ??
Please help me!! It would be much much much appreciated
thank you sooo much!!
you helped tremendously!
especially since you're the only person that answered. lol
A line joining a planet and the sun sweeps out equal areas during equal intervals of time.
What does that mean exactly ??
I understand that there is a Perihelion, when a planet or comet is closest to the sun. Then there is an Aphelion when it's farthest from the sun. But i don't understand the "sweeping out" part. can someone please explain ??
and one last question.
When i hear people say that
"this planet is blah blah blah million miles from the sun...."
are they talking about when the planet is in it's Perihelion stage or Aphelion ??
Please help me!! It would be much much much appreciated
thank you sooo much!!
you helped tremendously!
especially since you're the only person that answered. lol