2009年10月4日 · In summary, the solar system consists of eight planets, divided into two categories: terrestrial and jovian. The inner four planets are made of rocks, while the outer four are composed of gas. The jovian planets are larger, more massive, and have a lower density than the terrestrial planets. They also have rings and a larger number of moons.

2014年4月9日 · The formation of the solar system, specifically the process of accretion, is what led to the distribution of terrestrial planets in the inner solar system and gas giants in the outer solar system. As the solar system formed, smaller particles of dust and gas clumped together to form larger bodies, with the larger and denser materials closer to ...

2016年12月21日 · The average temperature in the space between planets varies greatly depending on the distance from the Sun. In the inner solar system, the temperature can be very high, reaching up to 1000 degrees Celsius. In the outer solar system, the temperature can be much lower, even reaching temperatures below -200 degrees Celsius.

2010年7月20日 · The fact that all the planets in our solar system orbit in the same plane is a fundamental characteristic of our solar system. This alignment is essential for the stability and order of the solar system, allowing the planets to maintain their orbits without crashing into each other. Why do the planets all orbit in the same direction?

2016年11月8日 · Plane Planets Solar Solar system System In summary: All the planets except for Pluto are in approximately the same plane, but the plane of the orbit of Pluto is inclined by about 17o relative to the plane of the other planets' orbits.Perhaps that is another reason (besides size) why Pluto was properly demoted to a dwarf planet.

2022年1月6日 · Just calculate the centripetal force given that it is due to the gravitational force (for simplicity you can assume the Sun to be at rest with the planets orbiting around, because the Sun is so much heavier than all the planets in our solar system). Then you find a relation between ##r## and the acceleration.

2013年1月7日 · Using: hyperphysics solar system data From the Earth/Moon orbit, you need 42.1kmps to escape the Sun's gravity. If you used the entire mass of the solar system you'd get something like a 0.04% difference to this. You need 11.2kmps to escape the surface of the Earth - but still bound to the Sun.

2015年6月5日 · The Solar system's center of mass clearly cannot be moving in relation to itself. However the center of mass will always be changing it's position in relation to every other gravitationally significant solar system object, including the geometric center of the Sun core.

2021年2月9日 · The planets are spaced logarithmically, with Mercury at 27.5 inches and Pluto at 72 inches. This allows for a more accurate representation of the distances between planets, rather than a to-scale representation which would result in very small distances between the inner planets. The logarithmic scale also aids in understanding the vast distances

2011年8月26日 · On the scale of the solar system, the sun is an incredibly tiny target. To fall in, you either need perfect aim, or something actively deflecting you from a free-fall trajectory, I believe. Aug 27, 2011