The following sections are included:More Than One PlanetJupiter, Mars and the AsteroidsThe Centre of Mass: Two MassesTransfer OrbitsTidal ForcesThe Roche LimitSummary#More Than One Planet#Jupiter, Mars and the Asteroids#The Centre of Mass: Two Masses#Transfer Orbits#Tidal Forces#The Roche Limit#...
027. Its mass is more than twice than that of all the other planets in the solar system combined. 相关知识点: 试题来源: 解析 答案见上此处指代上文同类事物 mass, 且 mass 不可数。句意:它的质量是太阳系中其他所有行星质量总和的两倍多。
Among the following planets, which one has the smallest mass? A. Venus B. Mercury C. Neptune D. Uranus 相关知识点: 试题来源: 解析 B。解析:水星是太阳系中质量最小的行星之一。金星的质量比水星大。海王星和天王星都是气态巨行星,它们的质量比水星大很多。
We report the discovery of a brown dwarf companion to the young M dwarf 1RXS J235133.3+312720 as part of a high contrast imaging search for planets around nearby young low-mass stars with Keck-II/NIRC2 and Subaru/HiCIAO. The 24 (~120 AU) pair is confirmed to be comoving from two ep...
Of the transiting planets discovered from the ground to date, WASP-84b has the third-longest period. For the active stars WASP-69 and WASP-84, we pre-whitened the radial velocities using a low-order harmonic series. We found this reduced the residual scatter more than did the oft-used ...
According to the researchers from the Chinese Academy of Sciences Yunnan Observatories, this process is much more intense than the particle behavior escape observed in the solar system's planets. They added that hydrodynamic atmospheric escape might have happened in the early stages of the solar syst...
2.Jupiter's mass is more than twice than that of all the other planets in the solar system combined. 相关知识点: 试题来源: 解析 答案见上2.that句 :的质量 太阳 中其他 有行 质量总和的两倍 多。在比较状语从句中,用that指代可数名词单数和不可数名词。 此处 that 指代 mass。
Like the planets of the solar system, these objects are unable to sustain stable nuclear burning in their interiors, but in contrast they are not bound to stars. This new kind of isolated giant planet, which apparently forms on time scales of less than a few million years, offers a ...
A population of very young brown dwarfs and free-floating planets in Orion We describe the results of a very deep imaging survey of the Trapezium cluster in the IJH bands, using the UKIRT high-resolution camera UFTI. Approximately... PW Lucas,PF Roche - 《Monthly Notices of the Royal Ast...
How does the sun compare with the planets in terms of mass? Ha ha, it's quite a bit bigger. If you look at the solar system, when we've got eight planets, the sun, and a lot of small debris. All the planets add up to only about 0.1% of the mass of the solar system, so ...