Get to know Perihelion better with 10+ real example sentences, the meaning and synonyms like periapsis or aphelion.
Perihelion in a sentence
Perihelion meaning
- The point in the elliptical orbit of a comet, planet, etc., where it is nearest to the Sun.
- The highest point or state; the peak, zenith.
Using Perihelion
- The main meaning on this page is: The point in the elliptical orbit of a comet, planet, etc., where it is nearest to the Sun. | The highest point or state; the peak, zenith.
- Useful related words include: periapsis, point of periapsis, aphelion.
- In the example corpus, perihelion often appears in combinations such as: at perihelion, the perihelion, perihelion of.
Context around Perihelion
- Average sentence length in these examples: 24 words
- Position in the sentence: 5 start, 8 middle, 7 end
- Sentence types: 20 statements, 0 questions, 0 exclamations
Corpus analysis for Perihelion
- In this selection, "perihelion" usually appears in the middle of the sentence. The average example has 24 words, and this corpus slice is mostly made up of statements.
- Around the word, sun, passed, anomalous, didn, precesses and earth stand out and add context to how "perihelion" is used.
- Recognizable usage signals include aphelion and perihelion of the and at perihelion earth is. That gives this page its own corpus information beyond isolated example sentences.
- By corpus frequency, "perihelion" sits close to words such as aayog, absentees and accruing, which helps place it inside the broader word index.
Example types with perihelion
The same corpus examples are grouped by length and sentence type, making it easier to see the contexts in which the word appears:
Aphelion is 103.4% of the distance to perihelion. (9 words)
Chiron came to perihelion (closest point to the Sun) in 1996. (11 words)
At perihelion Earth is travelling at 67,779 mph while at aphelion its. (13 words)
Based on measurements of the aphelion and perihelion of the Earth and Mars, he created a formula in which a planet's rate of motion is inversely proportional to its distance from the Sun. (34 words)
But the perihelion of the planet Mercury 's orbit exhibits a precession that cannot be fully explained by Newton's laws of motion (see diagram to the right), as Leverrier pointed out in 1859. (34 words)
At the time of its discovery, Chiron was close to aphelion, whereas the observations showing a coma were done closer to perihelion, perhaps explaining why no cometary behavior had been seen earlier. (32 words)
Example sentences (20)
The sector areas are related by The circular sector area The area swept since perihelion, : is by Kepler's second law proportional to time since perihelion.
The periodic Comet Hartley 2 (103P/Hartley) orbits the sun every 6.46 years, appearing in telescopes’ eyepieces for weeks before its closest approach to the sun (perihelion).
Notably, there is no observable difference on spacecraft surfaces, a good indication that the higher temperatures faced during perihelion didn’t alter the spacecraft.
Just as Mercury's perihelion precesses around the Sun due to General Relativity, S0-2 should similarly precess around this supermassive black hole, except with a much larger effect.
At perihelion Earth is travelling at 67,779 mph while at aphelion its.
Although predicting the brightness of comets with any degree of accuracy is very difficult, Hale–Bopp met or exceeded most predictions when it passed perihelion on April 1, 1997.
Aphelion is 103.4% of the distance to perihelion.
A secular resonance occurs when the precession of two orbits is synchronised (usually a precession of the perihelion or ascending node ).
As its orbit changes, this has the gradual effect of changing the perihelion and longitude of Pluto's orbit (and, to a lesser degree, of Neptune).
At the time of its discovery, Chiron was close to aphelion, whereas the observations showing a coma were done closer to perihelion, perhaps explaining why no cometary behavior had been seen earlier.
Based on measurements of the aphelion and perihelion of the Earth and Mars, he created a formula in which a planet's rate of motion is inversely proportional to its distance from the Sun.
Because of the increased distance at aphelion, only 93.55% of the solar radiation from the Sun falls on a given square area of land than at perihelion.
Biela 's Comet was one significant example, when it broke into two pieces during its passage through the perihelion in 1846.
But the perihelion of the planet Mercury 's orbit exhibits a precession that cannot be fully explained by Newton's laws of motion (see diagram to the right), as Leverrier pointed out in 1859.
By definition, all NEOs have a closest approach to the Sun ( perihelion ) of less than 1.3 astronomical unit (AU).
By Pluto's second perihelion, Neptune will have completed a further one and a half of its own orbits, and so will be a similar distance ahead of Pluto.
Chiron came to perihelion (closest point to the Sun) in 1996.
DNA-hypotheses Another example: precession of Mercury Precession of the perihelion (exaggerated) The characterization element can require extended and extensive study, even centuries.
Due to the inverse square law, the radiation at perihelion is about 106.9% the energy at aphelion.
Einstein himself had shown in 1915 how his theory explained the anomalous perihelion advance of the planet Mercury without any arbitrary parameters ("fudge factors").
Common combinations with perihelion
These word pairs occur most frequently in English texts:
- at perihelion 10×
- the perihelion 6×
- perihelion of 5×
- perihelion and 4×
- perihelion is 3×
- near perihelion 3×
- to perihelion 3×
- and perihelion 3×
- perihelion in 3×
- its perihelion 3×