Re: Being careful with directions

[Rondo Jeffery <RJEFFERY@WEBER.EDU>]

> > > Leigh Palmer <palmer@SFU.CA> 09/22/99 12:09PM >>>
> I just did the calculation again. Using eccentricity of Earth's orbit
> e = 0.0167 I obtain an average duration difference of 7.765 days, but
> I wouldn't mind having someone check my calculation before 2:30 PDT,
> when I have to commit myself in lecture!
>
> Leigh


I didn't repeat your calculation, but by counting days from VE (Mar. 21) to AE (Sept. 23) and from AE to VE (again assuming Mar. 21) for 1999-2000 I come up with 7 days.  I'm not sure now where I originally got the 5 day figure I quoted you earlier, but it does seem empirically to be more like 7.  Thanks for the stimulation of the group.

Rondo