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Brian Tung wrote:
> Kurt (canopus56) wrote:
> > Well, now I'm duly confused. I thought the Moon's orbit would be
> > smaller and the lunar month would be shorter in the past. But that's
> > not what Table 1 in article that George refered to:
> >
> > http://www.geo.umass.edu/courses/geo892/moon_orbit.pdf
> >
> > - says. The article states that the solar days per synodic month at
> > 2.45Gyr ago was 32.7 and it has _decreased_ to the current 29.53. days.
> > Maybe because the Earth was rotating faster?
>
> I suspect that's exactly what that's about.
This just says that the Earth was spinning faster, so it completed more
revolutions per period of time. The increased spin of the Earth would
not affect the speed at which the moon revolves around the Earth
though, right?
>
> --
> Brian Tung <brian@xxxxxxx>
> The Astronomy Corner at http://astro.isi.edu/
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