例文・使い方で印象づける「perihelion」の覚え方
スポンサーリンク...Mars is then passing perihelion, while our world is at aphelion (orgreatest distance from the Sun)... 
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
...In thesix weeks in which Mercury moves from aphelion to perihelion, itapproaches the Sun by fourteen millions of miles, and the heat received byit is increased 2½ times...
E. Walter Maunder 「Are the Planets Inhabited?」
...Besidesthose already mentioned there are many comets with orbits of such markedeccentricity that their ellipses when near perihelion cannot bedistinguished from parabolæ...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...Before the perihelion passage thecomet had only had one tail, but a very splendid one...
Robert Stawell Ball 「The Story of the Heavens」
...Ifthe comet be a periodic one, the same series of changes may take placeat its next return to perihelion...
Robert Stawell Ball 「The Story of the Heavens」
...This point is called the perihelion...
George C. Comstock 「A Text-Book of Astronomy」
...The relative dimensions and presentation of Mars, as seen in oppositionin perihelion, and in opposition in aphelion, are shown in the two rowsof figures...
Richard A. Proctor 「Half-hours with the Telescope」
... so that once it was excentric enough just to graze the sunat perihelion as a projected body would do?...
Oliver Lodge 「Pioneers of Science」
...Hence each planet is nearer to the sun at one partof its orbit than another; that point is called the perihelion,and the farthest point aphelion...
Henry Warren 「Recreations in Astronomy」
...On the day of, and that following, its perihelion, itcould be detected with the unaided eye in full daylight, enthroned inthe Heavens beside the dazzling solar luminary...
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
...At perihelion it comes within the orbit of Venus; indeed, nearlyhalfway between that and the orbit of Mercury...
E. Walter Maunder 「Are the Planets Inhabited?」
...Itpasses close to the sun at perihelion, at a point inside the path ofMercury, while at its greatest distance it approaches the path ofJupiter...
Robert Stawell Ball 「The Story of the Heavens」
...This very remarkable observation wasmade less than a day after the perihelion passage, and illustrates thewonderful activity in the interior of a comet when very close to thesun...
Robert Stawell Ball 「The Story of the Heavens」
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