(astronomy) The point in the elliptical orbit of a planet or comet etc. where it is nearest to the Sun
How To Use Perihelion In A Sentence?
The perihelion distance from the sun, which settled the precise form of the parabola.
It returned to its perihelion in 1835, and was well observed in almost every observatory.
The distance of this remarkable comet from the sun at its perihelionpassage was less than that of any known comet.
Another fact tending towards this same conclusion is that after this comet passed perihelion it showed several nuclei following each other.
It will be looked for in 1911; and there is good hope of predicting, long before it is seen, the time of its perihelion within a day.
Besides those already mentioned there are many comets with orbits of such marked eccentricity that their ellipses when near perihelion cannot be distinguished from parabolae.
The perihelion portion of its orbit lies between the orbits of Mars and the earth, and the aphelion part is outside the orbit of Mars.
The closely related orbits of the four bodies are also remarkable for approaching nearer the sun at perihelion than does the orbit of any other known body.
But at every return to perihelion the motion of a comet will be to some extent either accelerated or retarded by the action of Jupiter or any other planet in the neighbourhood of which it may pass.
Short & Simple Example Sentence For Perihelion | Perihelion Sentence
Sentence Structure is important because it provide us with the framework for the clear written expression of our ideas.The aim in writing is always to write in complete sentences which are correctly punctuated. Sentences always begin with a capital letter and end in either a full stop, exclamation or question mark. A complete sentence always contains a verb, expresses a complete idea and makes sense standing alone. On this page we are showing correct ways to write: