Sentences with phrase «by aphelion»

And it looks like Planet Nine is way out by aphelion.

Not exact matches

Ca seasonal variation follows the behaviour expected from impact vaporization by interplanetary dust, due to Mercury's substantial radial excursions (heliocentric distances between 0.306 AU at perihelion and 0.465 AU at aphelion).

NEAs are subdivided into the Aten, Apollo, and Amor groups (that are categorized by their perihelion distance (q), aphelion distance (Q), and their semi-major axes (a) of orbit) and the Potentially Hazardous Asteriods (PHAs).

But eccentricity modulates the effect of precession (the alignment of perihelion and aphelion with solstices or equinoxes)(actually, obliquity does modulate this too, but while obliquity variations have significant effect by themselves, they are relatively small in proportion to the difference with zero obliquity, whereas Earth's eccentricity variations include getting near zero, where aphelion and perihelion would have no effect as they wouldn't exist.

This is a consequence of Kepler's Law for elliptical orbits whereby Earth travels more slowly during aphelion and hence has longer to accumulate the heat that has been reduced by the greater distance.

The reason is that the greater total heat in joules applied to the hemisphere more oriented towards the Sun during perihelion (near Sun) turns out to be cancelled by the greater heat applied to the other hemisphere during aphelion (distant from Sun).

Of course the cause of seasons on Pluto will be dominated by the differences in Perihelion (4.4 billion km) and Aphelion (7.4 billion km) instead of the tilt and geographic distribution like on the Earth.

It shows a small fluctuation in the perihelion / aphelion distances of about 15000 kilometers that are caused by planetary perturbations on a regular cycle.

The modulation in Jupiter's perihelion / aphelion distances is mainly brought about in my opinion by the gravitational perturbations induced by Saturn, a link to my original research can be found HERE.