The Solar System

It is far colder than Earth. The Kuiper Belt is very far from the warming influence of the sun. Subatnce that are normally gasses for us such as carbon diozixe and methane are frozen solid in the Kuiper Belt.

Deimos the smaller outer moon of Mars is made of carbon rich rock similar to C-type asteroids leading scientist to believe it originated in the asteroid belt. Astronomers believe both Deimos and it's larger neighbor Phobos was disturbed by Jupiter and captured by the gravity of Mars.

george cannot move the planets around the sun

astroids or meteors

Galileo was the first to study the sky with a telescope, record the results, and draw scientific conclusions. Before that, however, there were many people who studied the planets, and in ancient times there was a model explaining how the planets move among the stars, devised by Ptolemy.

earth

That idea is called heliocentric.

It was important, because it was proven to show the locations of the Planets and the Sun

D. The sun.

All planets in our solar system orbit the sun thus it is the best reference when describing the motion of the planets within that solar system.

You'd think they would have done, it took all of 1500 years. The reason is that the old Ptolemaic model predicted the positions of the Sun, Moon and planets in the sky quite accurately so that there was little reason to suspect it might not be quite right.

It was only in the late 16th century that the model became suspect, after Tycho Brahe had invented new and more accurate ways of measuring the positions of stars and planets. His measurements were used by Johannes Kepler to produce the laws of planetary motion, in which the planets' orbits were described as ellipses, and this produced better agreement between predictions and measurements.

Kepler's model had to have the Sun assumed at the centre, but at that stage it was only recognised as a convenient assumption. But in the next 100 years, after the time of Tycho, Kepler and Galileo, further basic scientific discoveries of gravity and the laws of motion were made that fitted the heliocentric theory and made it more and more acceptable.

Finally, in the 19th century, observations became so sophisticated that the parallax of nearby stars could be measured, which produced the final piece of the scientific jigsaw and led to the general acceptance of heliocentrism. The first measurement of parallax was done on the nearby star 61 Cygni by the German astronomer Bessel. Parallax is a very slight regular shift of a star's position against the background of distant stars, caused by the Earth's movement round the Sun. That was the knockout punch that finally decided the debate.

The motion of Earth around the Sun is the cause of the seasons.

In our solar system and likely all others Gas Giants.

There are only 2 Terrestrial Planets with moons, The Earth and Mars they are Luna (The Moon), Phobos and Deimos.

Jupiter has 67 Known moons

Saturn has 62 Known moons

Uranus has 27 Known moons

Neptune has 13 Known moons

On a side note Pluto which is a dwarf planet has 5 moons Charon, Niz, Hydra, P4 and P5

It takes Earth 365 and 1/4 days to complete an orbit.

When its closest to the horizon.

The Sun will be in the sky until it dips below the horizon just after dusk. During Summer in the Northern Hemisphere, it can be after 10pm-ish.

The earth is 149.6 million km from the sun.

Yes and no. On one definition it has.

However, on another definition it has not and it will not for thousands of years.

That definition is the outer edge of the Oort cloud of comets.

Pluto lost its status as a planet in 2006 when the International Astronomical Union redefined the criteria for what constitutes a planet. Pluto was reclassified as a dwarf planet due to its size and location in the Kuiper Belt.

The iron cores in the centers of some planets didn't come into existence in these planets; the iron was created in the supernova explosions of ancient stars, and blasted into space during the explosions. Our solar system including the Sun and all the planets was formed as gravity caused the gas & dust clouds in space to fall together.

We're not sure why the Sun got most of the hydrogen, while the planets were formed from primarily the heavier elements. What we can be sure of is that the core of our Sun isn't nearly hot enough or dense enough to fuse lighter elements into iron, and it's a good thing - because fusing elements heavier than iron would suck energy OUT of the core, and cause the Sun to collapse and then explode in a supernova. That'll never be an issue for us, because the Sun will NEVER be hot and dense enough to do that. It doesn't have enough mass.

These days, solar power stands out amongst the energy-generating technologies in the world. Solar systems are installed with the long-term advantages in mind because photovoltaic (PV) system can keep going for decades with no significant support. That is why solar panel makers can securely offer guarantees of over 20 years. When you are in the market for a solar system, you will discover numerous trusted solar panel installers who offer guarantees to shield you from glitches arising from faulty setup. Generally lasting 5 to 10 years, these guarantees are extremely common, given that breakages are exceptionally are within the business.

No. The planets make up about a tenth of a percent of the mass of the solar system. Not ten percent. Ten percent of the sun's mass would be enough to make a red dwarf star.