Could someone explain this image to me?

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The discussion centers on understanding the formula for Earth's orbit, with a request for detailed explanations. Participants suggest consulting Wikipedia for definitions of terms and clarify that the formula for a circular orbit derives from equating gravitational force and centripetal force. They note that elliptical orbits are more complex, referencing Kepler's laws as a foundational concept. The conversation highlights the importance of mathematical understanding, specifically algebra and calculus, in grasping the formula. Overall, the dialogue emphasizes the need for clarity in scientific explanations and the role of mathematical proficiency in understanding orbital mechanics.
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I know it's the formula for the Earth's orbit, but if someone would explain the actual formula itself to me in detail, I would greatly appreciate it.

Thanks! :)

http://www.wallchan.com/images/sandbox/1305765361-earth-orbit-sun-365-physics-none-wallpaper.jpg
 
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Throw us a bone... What part do you understand?
 
Where does that Wiki article fall short? It seems to have it all there. Or you could try this link, possibly. The formula (for a circular orbit) is arrived at by equating the gravitational force at a distance r and the force needed for a circular orbit at that distance.
For a general Elliptical orbit is is more complicated but Kepler's law might do for you (he based it on observation but didn't have access to Newton's law of gravitation at the time afaik).
 
sophiecentaur said:
Where does that Wiki article fall short? It seems to have it all there. Or you could try this link, possibly. The formula (for a circular orbit) is arrived at by equating the gravitational force at a distance r and the force needed for a circular orbit at that distance.
For a general Elliptical orbit is is more complicated but Kepler's law might do for you (he based it on observation but didn't have access to Newton's law of gravitation at the time afaik).

It doesn't. Maybe "helps" was the wrong way to put it. It filled in the blanks for me. The second one is what I'm having more trouble understanding.
 
Oh, and thank you for the responses. Greatly appreciated.
 
This all depends on your level of Maths, I think. What Maths are you happy with- algebra, calculus?
How about this link?
 
  • #10
In the last line, "minutes" and "days" are missing as units, otherwise the equation is wrong.
 

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