Moreover, a large majority of comets would then have their aphelia in the direction of the sun's motion, and therefore their perihelia in the opposite direction.
We find, as a matter of fact, that several periodic comets either pass near Jupiter or have their aphelia in the neighbourhood of the orbit of Jupiter.
It is probable, however, that the positions of the Aphelia here given will be sufficiently close for all practical purposes.
It was formerly supposed that all comets have their aphelia far beyond the limits of the planetary system.
The aphelia of the comets of short period ought therefore to be found, for the most part, in the vicinity of the orbits of the major planets.
Some of the observed clusters are probably the debris of ancient comets whoseaphelia were in the vicinity of Jupiter's orbit.
With velocities somewhat less, it would be transported to distances corresponding to those of the aphelia of the periodic comets.
If we consider the comet aphelia of short-period comets, we shall notice that they are clustered about the path of Jupiter and the path of Saturn, thinning out to a neutral ground between, where there are none.
Their orbits have ever since been ellipses with their aphelia in groups corresponding to the distances of the planets concerned.
The extremes of temperature at perihelia and aphelia to which comets are subjected did not bother him particularly.
It is well known that those of moderately short periods are, for a reason already explained, connected with the larger planets in such a way that the cometary apheliafall near some planetary orbit.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "aphelia" in a variety of sentences. We hope that you will now be able to make sentences using this word.
