The Solar System

Kepler had to modify the Copernican system by proposing that planetary orbits were elliptical, not circular as Copernicus had assumed. This change helped to better match Tycho Brahe's detailed observational data on the planets' positions. Kepler's new model became known as Kepler's laws of planetary motion.

The farthest-away from the sun measured object/series of objects in our solar system is the Oort Cloud, a large asteroid belt, which orbits approximately 7.479893535 x 1012 kilometers away from the sun, or 50,000 AU (astronomical units).

John Couch Adams is famous for independently predicting the existence and position of the planet Neptune through mathematical calculations in 1846. His work played a crucial role in the discovery of Neptune.

Every object in our solar system is bound by gravity, from a lone electron floating around outside the Kuiper Belt to the mighty Jupiter, the mass of which is 2.084334618 x 1057 times greater than that of an electron. In our solar system, the sun, Sol, has the greatest gravitational "pull," followed by Jupiter. The larger a body, the greater its spacial displacement, and therefore gravitational force, and the more it is affected by gravity.

The geocentric model of the solar system was the belief that Earth was the center of the universe, with all other celestial bodies revolving around it. This model was widely accepted in ancient times until the heliocentric model, which correctly places the Sun at the center of the solar system, was proposed by Copernicus in the 16th century.

Three types of bodies in the solar system besides dwarf planets, asteroids, and planets are comets, moons, and meteoroids. Comets are icy bodies that release gas and dust as they orbit the Sun, moons are natural satellites that orbit planets or asteroids, and meteoroids are small rocky or metallic bodies that travel through space.

New material was likely added to planets in a young solar system through processes like accretion and impacts from asteroids and comets. These small bodies collided with the growing planets, contributing to their mass and composition. Over time, these collisions helped shape the planets and their eventual characteristics.

The force of gravity between the planets and the sun keeps them in orbit and prevents them from flying out of the solar system. The sun's gravitational pull keeps the planets in stable orbits around it.

Saturn goes around the sun once every Saturn Year, and that is only once every 29.46 Earth Years.

Our moon has fields of cooled magma coating the surface, which are the dark spots we see on earth. Jupiter's moon Io the most volcanically active body in the solar system, we've observed that during satellite fly-bys.

No Saturn is the second largest planet in the solar system. Here are the planets in order of size, smallest first:

Mercury

Mars

Venus

Earth

Neptune

Uranus

Saturn

Jupiter

In our solar system, there is one source of light: the sun, Sol. Earth, the third planet has several groups of bioluminescent organisms, but none are discernible from space. The second planet, Venus, is so hot that much of its surface is covered in lava flows, which emit a slight glow. This, however, is not visible through Venus' thick atmosphere. The largest planet, Jupiter, emits a large amount of heat, from high pressure, but no visible light (when Jupiter accumulates 40 times its current mass, it will have enough pressure for a fusion reaction). There are many reflective bodies in our system, but only one confirmed light source.

There is a theory that suggests there is a red dwarf star, Nemesis, located in the Oort Cloud. However, there is no solid evidence for this.

Ptolemy proposed a geocentric model, with Earth at the center and planets orbiting it. Copernicus suggested a heliocentric model, with the Sun at the center of the solar system. Galileo's telescopic observations supported the heliocentric model and provided evidence for Copernicus' theory.

A star found in our solar system is the Sun. The Sun is a star.

By the time our solar system was forming, all the naturally-occurring elements were present. After all, our Earth formed as part of the solar system, and all the elements we find here have been around for 4.5 billion years.

In about 5 billion years, the Sun will expand into a red giant, reaching a size where it will likely engulf Mercury and Venus. Earth may also be affected as the Sun expands, although it's uncertain if it will be consumed or not.

Cosmonaut is the Russian word for astronaut.

The geocentric Solar system theory was first proposed by ancient Greek philosopher Aristotle and further developed by astronomer Claudius Ptolemy. This theory placed Earth at the center of the universe with all celestial bodies, including the Sun, planets, and stars, orbiting around it.

Active volcanoes have been observed on Jupiter's moon Io, which is the most geologically active body in the solar system. There is also evidence of recent volcanic activity on Mars, such as lava flows and volcanic cones. Additionally, there are icy volcanoes, known as cryovolcanoes, on some of Saturn's and Uranus' moons.

Yes, Earth does have a corona, but it is not the same as the solar corona. Earth's corona is a rarefied layer of gases surrounding the planet, primarily composed of hydrogen and helium. This outermost layer of Earth's atmosphere extends into space, gradually thinning out as it merges with the solar wind.

Earth does have a crust, made mostly of rock. The sun, however, does not. Sol (the sun), like most stars, is a very large ball of plasma, so the only part of it comparable to a solid is its core, which is under an extreme amount of pressure.

A first generation solar system would have contained mostly hydrogen and very little if any of the heavier elements.

Second generation solar systems, made from the exploded remnants of first generation stars, would have a higher proportion of heavy elements and thus have more rocky planets and stars that could use energy sources other than hydrogen fusion after their hydrogen was exhausted.

Unfortunately, you neglected to include the list of allowable choices that "follows"

the question. Still, I know the answer.

The force that keeps comets in closed orbits around the sun is the one that has

the same effect on the planets; gravity. The only difference is that the orbits

of the long-term comets are much more 'eccentric' (long and skinny) than those

of the planets, so they have much shorter minimum distances from the sun, and

much longer maximum distances, than planetary orbits have.

So, the correct awnser is Gravity.

No. The only star in the Solar System is our sun (our sun's name is Sol, hence SOLar System). The current polestar, Polaris, is part of the Milky Way galaxy, but it is not in the Solar System.