Re: Being careful with directions

[Leigh Palmer <palmer@SFU.CA>]

> Is this a trick question?  I had always assumed it was because the Earth is
> in an elliptical orbit about the Sun, with the periapsis being around the
> time of winter in the Northern Hemisphere.    But then, there may be some
> other reason I haven't thought of (or ever knew in the first place).

That's certainly the reason, and a good example of the
application of Kepler's third law. Still, by how much
time does northern spring+summer exceed autumn+winter?

Leigh