Not exact matches
He did, but even if you don't know what that means, and simply put he found that a planet's
orbital period and distance are related, very soon you can gaze through the new observatory here at the
same stars and planets that Kepler observed 400 years ago.
That means its
orbital period is the
same as its rotation around its axis.
Mars's
orbital period of 1.88 years means that if it is on the
same side of the sun as one Jupiter - Saturn meeting, it will be nearly on the opposite side the next time around.
Multiple planets transiting the
same star reveal more:
period ratios determine stability and dynamics, mutual gravitational interactions reflect planet masses and
orbital shapes, and the fraction of transiting planets obs... ▽ More When an extrasolar planet passes in front of its star (transits), its radius can be measured from the decrease in starlight and its
orbital period from the time between transits.
It's the
same series of an initial forcing (change in insolation due to Milankovitch
orbital cycles) being amplified by reinforcing feedbacks (change in albedo, change in temperature and partial pressure regulating both CO2 and H2O), but in reverse from an exit from a glacial
period.
From first glance the 100 - thousand - year
orbital eccentricity cycle had seemed to be a perfect fit for that approximately
same interval for inter-glacial
periods appearing.
In another paper published in the
same issue of Nature, researchers found layers of sediments that date back millions of years — to the Cretaceous
period — showing evidence of climate changes likely caused by shifts in the
orbital patterns of our planet, different patterns than those we observe today.
Might the «weather» of
orbital cycles be impacted by K / T but not the «climate» — perhaps the trajectories of obliquity, precession and eccentricity would become completely different given sufficient time, but maybe with the
same general character —
periods and amplitudes and average values being similar enough that a casual glance at any given time segment (on the necessary scale to characterize the
orbital cycle «climate») wouldn't look like anything different.