The sun is located at one of the focuses of the earth’s elliptical orbit, and therefore the distance between the earth and the sun changes during the course of a year from 147,117 million km (at the perihelion) to 152,083 million km (at the aphelion). The semimajor axis of the ...
Mars' orbit is more elliptical (椭岗的) than Earth's, so the dilference between perihelion and aphelion(远日点) is greater. Over the past centuries, Mars' orhit has been getting more and more elongated, carrying the planet even nearer to the sun at peribetion and even larther away at...
The velocity of the earth’s motion along its orbit, which averages 29.765 km per sec, varies between 30.27 km per sec (at the perihelion) and 29.27 km per sec (at the aphelion). Along with the sun the earth also moves around the center of the Milky Way Galaxy; the period of a ...
根据...even nearer to the sun at perihelion and even farther away at aphelion...近日点离太阳更近远日点离太阳更远。可推知,火星的轨道变得越来越长。所以"elongated"意为"伸长的"。故选A。(5)D.细节理解题。根据Our 2003 record will stand until August 28,2287!我们2003年的记录将持续到2287年8月2...
Earth passes each semester, alternately, at perihelion, i.e. it is at this time closer to the sun and at aphelion, i.e. it is at this moment the most away from the sun. The difference between these two distances is determined by the eccentricity. The orbital eccentricity is 0.017. ...
Perihelionis the point of the Earth’s orbit that isnearestto the Sun. This always happens in early January, about 2 weeks after theDecember Solstice. The words come from ancient Greek, in whichheliosmeans “Sun,”apomeans “far,” andperimeans “close.” ...
"可以推测是形容词,根据“even nearer to the Sunat perihelion and even farther away at aphelion."可知 是“伸长的”。 5.根据"Our 2003 record will stand until August 28, 2 287!"可知答案。 1.B; 2.C; 3.B; 4.A; 5.C. 反馈 收藏 ...
Mars has a more eccentric orbit than Earth, with aphelion at 1.66 AU and perihelion at 1.38 AU. In comparison, Earth has an aphelion of 1.02 AU and a perihelion of 0.98 AU. This means that the distance between aphelion and perihelion at Mars is a third of Earth’s distance to the Sun...
4.根据“Over the past centuries, Mars' orbit has been getting more and more elongated, carrying the planet ⋅⋅⋅”可以推测是形容词,根据“even nearer to the Sun at perihelion and even farther away at aphelion.”可知是“伸长的”。 5.根据“Our 2003 record will stand until August 28, ...
Perihelion (closest approach to the sun): 91,402,640 miles (147,098,291 km) Aphelion (farthest distance from the sun): 94,509,460 miles (152,098,233 km) Length of solar day (single rotation on its axis): 23.934 hours Length of year (single revolution around the sun): 365.26 days ...