The Solar System

A sand-to boulder-sized particle of debris in the solar system is called a meteoroid.

i did

because of scientists

Europa, which is one of Jupiter's moons.

It's called accretion.

The planet Mercury is closest to the sun, at about three-tenths Earth's distance at the nearest point in its orbit.

The main reason is that it is so far away from the Sun, that it is considered part of the Kuiper belt - not the solar system. There are similar sized objects to Pluto in the Kuiper belt system, and thus Pluto was 'demoted' to dwarf planet status.

During the daytime, all of it; at night, no part of the Sun. During a short time, during sunrise, only part of the Sun is over the horizon.Note: This is for a specific observer; you can always find a point on the Earth where the Sun is above your head.

Ptolemy knew of the seven classical planets: Mercury, Venus, Mars, Jupiter, Saturn, the Sun, and the Moon. These were the celestial bodies visible to the naked eye that were thought to move around Earth in the geocentric model of the solar system.

Pluto has a weaker gravity than Earth. In fact, Pluto has a weaker gravity than Earth's moon.

Yes; the Sun has over 99% of all the mass of the Solar System.

Any comet visible from earth is in orbit around the sun.

If the orbit is closed (elliptical), the comet will return after some period of time. If the orbit is open

(parabolic or hyperbolic), the comet will escape the solar system and never return to the neighborhood.

answer:The light of Antares reaches earth in 600 liht years.

365.24 days is roughly how long it takes the Earth to revolve around the Sun. For convenience we use a "year" of 365 days with" leap years" of 366 days.

I'm assuming you mean planet, in which case it is Jupiter.

Neptune.

It is Neptune, now.

500 years

Scientist classifies these objects based on their sizes, shapes, compositions, and orbits. The major categories include dwarf planets, comets, asteroids, and meteoroids.

At the end of the 17th century the furthest planet known was Saturn, and it had been known in ancient times. Uranus was discovered in 1783, Neptune in 1846.

Jupiter is the largest planet in our solar system.

Within our solar system all the planets are unique. Within the universe, it is likely that there will be planets very similar to those in our solar system. This would mean that no planet is actually unique. However we can not prove this yet.

Sure. There are lots of binary star systems. And even ones with more than that. It is more common than many people realize. Our nearest neighbor is a star system with several stars all orbiting each other, or their center of mass, to be more precise.

Chiron is a minor planet in the outer Solar System