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The Solar System

Ever wondered if there is life on Mars? Or if Jupiter has five moons? Look no further; here is the category concerning all questions about our solar system and the known planets!

4,302 Questions

What is the astronautical unit of all the planets in our solar system?

The astronomical unit (AU) is the unit commonly used to measure distances in the solar system. One astronomical unit is the average distance between Earth and the Sun, about 93 million miles (150 million kilometers).

Why pistol star is not solar system's sun or moon?

The Pistol Star is a massive and highly luminous blue hypergiant star located in the Milky Way galaxy, while the Sun is a relatively average-sized yellow dwarf star in the center of our solar system. The Sun provides light and heat to the planets in our solar system, while the Pistol Star is located at a great distance from our solar system and does not play a role in Earth's orbit or climate. The Moon is Earth's natural satellite, which orbits our planet, controlling tides and providing light at night, while the Pistol Star has no direct influence on the Earth-Moon system.

What was the first object to form in your solar system when a nebula collapsed?

The most widely accepted scientific explanation for the formation of the Solar System is called the Solar Nebular Model. According to this model, the entire Solar System formed around 4.5 billion years ago from the gravitational collapse of a small fraction of a giant molecular cloud, also known as a nebula.

A disturbance, most likely a nearby supernova, caused a giant cloud of gas and dust floating in space to contract and begin to collapse on itself. Most of the gas collected in the center to form a gaseous sphere that would eventually become the Sun. As more gas was drawn inward by the force of gravity, friction and pressure caused this sphere, called a protostar, to become hot and start to glow.

As the nebula continued to contract, conservation of angular momentum caused it to spin faster. It flattened out into a protoplanetary disk, with the hot, dense protostar in the center. Over millions of years, all eight planets formed by accretion from this disk. In other words, gravity pulled the disk into many clumps of gas and dust. These clumps stuck together and grew larger and larger, turning into planetesimals. The planetesimals further coalesced to eventually form planets, with comets and asteroids being the leftovers. Gravitational interaction with the planets caused them to be grouped into distinct regions such as the asteroid belt and Kuiper belt.

Due to their higher boiling points only metals and silicates could exist in the warm inner solar system, and these would form the rocky planets of Mercury, Venus, Earth, and Mars. Since metallic elements only comprised a very small fraction of the solar nebula, the terrestrial planets could not grow very large. It is thought that as many as 100 small protoplanets used to exist in the inner solar system, but they eventually collided and merged to create the four inner planets we know today.

The gas giants (Jupiter, Saturn, Uranus, and Neptune) formed further out, beyond the frost line where icy compounds can remain solid. The gas and ice that formed the Jovian planets was more abundant within the protoplanetary disk, allowing them to become massive enough to gain large atmospheres of hydrogen and helium and grow to mammoth proportions. Uranus and Neptune are thought to have formed closer to the Sun, then migrated out to their current orbits.

Throughout all this, the infant Sun continued to grow hotter. Once the temperature and pressure at the core was high enough, thermonuclear fusion of hydrogen began, and the Sun became a fully fledged main-sequence star. Solar wind swept away the remaining gas and dust leftover from the protoplanetary disk into interstellar space, ending the growth of the planets. This entire process of solar system formation happened within several hundred million years and was finished by around 4.5 billion years ago.

What is the large body of frozen ice and rock that travels toward the center of the solar system?

A comet is a large body of frozen ice and rock that travels towards the center of the solar system. It orbits the sun in an elongated path, and as it gets closer to the sun, the heat causes the ice and rock to vaporize, creating a glowing tail that points away from the sun.

How are impact craters of venus different from those found on other bodies in the solar system?

Impact craters on Venus tend to be shallower and have more subdued features compared to craters on other bodies in the solar system. This is due to Venus' thick atmosphere, which slows down impacting objects before they reach the surface, resulting in less dramatic crater formations. Additionally, Venus' surface is constantly reshaped by volcanic and tectonic activity, which can obscure or erase crater features over time.

Do planets always have stronger gravity than moons in your Solar System?

Yes, planets generally have stronger gravity than moons because planets are larger and more massive. Gravity depends on an object's mass and distance, so the greater mass of a planet typically results in stronger gravitational pull compared to moons.

How do temperature difference in the protoplanetary disk explain the arrangement of the planets in the solar system?

The protostellar disk is very hot and only rocks and metal can combine together in that heat, so that makes the inner planets. In the outer disk it is very cold, so there are only ice and dust particles able to combine together, there are though rock centers in the outer planets but ice and gas make up the majority. that makes the outer planets.

Why earth is a suitable planet for living not the other planets in solar system?

Because water, oxygen is only on the earth these two things are very important for living.

Second answer

This is because earth is in what is known as the "Goldilocks zone." If we were any closer to the sun, then all of the seas would boil. If we were further away, the seas world freeze. We are positioned where our world is just warm and wet enough to produce life. This does not make earth special, though. There have been numerous planets found in other solar systems that are in the Goldilocks zone.

What kind of suit do you need to go to Saturn?

Right now, there are no spacecraft that could support any humans in traveling to Saturn.

First, you would need a great quantity of food, water, and oxygen, or an artificial biosphere capable of producing food, water and oxygen within the spacecraft.

Fortunately, traveling with an extensive hydroponic garden not only converts carbon dioxide into oxygen, it can also provide your supply of vegetables. That would require a lot more larger spacecraft, of course...

Second, you would require a good power supply. Out around the orbit of Saturn, solar power systems would not deliver enough power, so you'd probably want a nuclear power system.

What is the force that caused the formation of the plants in our solar system?

Plants in our solar system, including those on Earth, formed due to the force of gravity that led to the condensation of dust and gas in the early solar system. This process eventually allowed for the formation of protoplanetary disks, which served as the birthplace of plants through processes such as accretion and differentiation.

What would happen to your solar system if the sun collapsed in a black hole?

It would take a star three times the mass of our sun to create a black hole. However it we just address the concept, as is stated by NASA:

"If a one solar mass black hole were to suddenly replace the Sun at the center of our solar system, the orbits of the planets would not change. This is because the physical laws that determine the orbital motion of the Earth depend only on the actual mass of the Sun, and not on whether it is distributed within a sphere (like the Sun) or at a point (like a black hole). I hope that answers your question."

However, due to the sun collapsing, our planet would be destroyed by the radiation, and likely remain dead due to the lack of heat source.

How many plants exist in the solar system?

Currently, only Earth has known living plants. However, on Mars, NASA has been experimenting with growing plants in simulated Martian soil for potential future colonization. No other planets in our solar system are known to support plant life.

Is Jupiter biggest planet in solar system?

Yes, Jupiter is the largest planet in our solar system. It is more than 300 times the mass of Earth and is known for its massive size and distinctive red spot.

What is the sun's function in the solar system?

The sun is at the center of the solar system and its primary function is to provide light, heat, and energy to all the planets, including Earth. It governs the orbits of the planets through its gravitational pull and is crucial for supporting life on Earth through photosynthesis and climate regulation.

What type of volcano is the largest volcano in the solar system?

Mars has the largest volcano in the solar system. It is called Olympus Mons, or Mount Olympus. At 375 miles (600 km) across, it would cover most of England, and at 16 miles (26 km) high, it is 3 times taller than Mount Everest. In the center is a huge, sunken crater that is 26 miles (90 km) across.

Why cant orbits change spontaneously?

For a change in orbit, a planet would have to experience an external force large enough. This would have to be a large collision with a rogue planet sized object or something like that - a highly unlikely event.

Why is the sun larger than the earth?

The sun is bigger than the earth because its a star and stars are usually bigger than planets...but even though the sun might seem huge... its like a grain of sand compared to other suns, or stars, out there! The earth is bigger than the moon because its a planet, the planets are also bigger than a moon because moons are just small pieces of rocks smashed together rotating a planet.... If you see a big planet and a little rock circling it then the little rock should be a moon. The theory of how a plant rotates the sun, or moon rotates a planet...is called "The General Theory of Relativity".

:3<3

When a planet is closer to the Sun is the orbit around the Sun shorter or longer?

When a planet is closer to the Sun, its orbit around the Sun is shorter because it has a smaller distance to travel in completing one orbit. The time it takes for a planet to go around the Sun is determined by its distance and speed.

Is there any life on planets exepet earth?

As of now, there is no definitive evidence of life on any other planet in our solar system or beyond. However, scientists are actively searching for signs of life on exoplanets within the habitable zone of their stars, where conditions may be conducive to the existence of life.

What are some advantages of a model of the solar system?

Because we can't yet actually go there.

A mathematical model or computer simulation is a poor substitute for the real thing, but for now, it will have to do. We send robot probes to Mars, to Titan, to orbit Jupiter and Saturn and Venus, and we create simulations of what things might be like there. It's better than nothing....

Which planet and what kind of planet is vv cephei?

VV Cephei is a star system, not a planet. It is a binary star system consisting of two massive stars, one of which is a red supergiant. The system is located in the constellation Cepheus.

Is it false that the names of the seven days of the week are derived from the names of the members of the solar system that are visible to the naked eye?

It is false.

The names of the days of the week recall:

-- the Sun

(but Spanish: "Domingo")

-- the Moon

-- Tiw, the Germanic god of war

(although in German: "Dienstag")

-- Wodin, Wotan, Odin, chief deity of the Germanic peoples

(although in German ... "Mitwoch", meaning "mid-week")

-- Thor, old English Unresdæg, literally "day of thunder"

(German: "Donnerstag" ... "Thunderday")

-- Old English "Frigedæg", day of the goddess "Frigg", from a prehistoric

Germanic verb "to love", also the ancestor of the English "friend" and "free".

-- Saturn's day

(Spanish: "Sabado", meaning "Sabbath")

Why do you think earth is the only planet in our solar system that supports life?

I don't think so. It is most probably the only planet to support life forms very similar to ours, but that does not imply that some other planet(s) don't have life forms of some other nature than ours.

What are the advantages and limitations of the three types of models?

Advantages:

- Exposure

- Popularity

- Possible Fame

- Money

- Travel

- Meeting famous people, other models

Disadvantages:

- Body Image Issues

- Weight Issues

- Career does not last long

- Can be replaced with another model any moment

- Hard on emotions, self esteem

- Constant criticism

What happens to the solar energy that planets receive from the sun when you move further in to the solar system?

Since intensity of the radiation emanating from the sun is inversely proportional to the square of the distance from it, if you half the distance between us and the sun, the intensity would increase by a factor of 4.

put simply, the closer you get to the sun, the hotter it is.