B Earth-Sun Lagrange Points Distance Query

[Dr Wu]

Hi

Does anyone know what the straight line distances of L4 and L5 are from Earth?

Many thanks.

 

[Bandersnatch]

Use this calculator:
http://orbitsimulator.com/formulas/LagrangePointFinder.html

 

[Janus]

To which L4 and L5 points are you referring to? The Earth-Moon pair or the Sun-Earth pair?
In each case, the chosen Lagrange point and the two celestial bodies form an equilateral triangle.
So in the Earth-Moon case, the Earth-Lagrange point distance is equal to the Moon-Earth distance, and the the Sun-Earth case, it is equal to the Sun-Earth distance.

 

[Dr Wu]

Yes, a quick twirl with a compass and a drawn circle soon showed the error of my ways. This is probably the silliest question I've raised on the forum thus far. I promise to do better next time.