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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
How many planets in your solar system support living things?
Earth is the only planet in our system that is confirmedto have life. However, it is believed, and soon to be tested, that the planet Mars, and several moons, may also support life, albeit primitive life (microorganisms, mainly bacteria and vira).
How many Satellites are there in the solar system?
It is difficult to know for certain. Earth has one natural satellite and thousands of artificial satellites. Mars has two moons and its own fleet of space probes in orbit. At least two of the larger asteroids have their own mini-moons. There are over 60 moons of Jupiter alone, and Saturn has 34 named satellites (and how many more that are still too small for our cameras to see?) Uranus has 27 known moons, Neptune 13 we're sure of, and even tiny Pluto has one. There are four other dwarf planets that are too far away to see moons even if there are any, and more dwarf planets yet to be discovered when we get out there.
Saturn's rings aren't solid; each ring is composed of millions, probably billions of separate particles. Ditto the other gas giant planets, each of which have thin, dark rings. Do we count those?
It's a pretty big number, any way we look at it.
Why do they say planets and their moons are parts of the solar system?
Because the sun (Sol) has them all trapped in its gravitational field. All the planets revolve around the sun and so all the planet's satellites revolve around the sun, too.
There are quite a few more objects that are part of Sol's gravitational field- comets, asteroids etc.
Which planet is called your sister planet?
Venus is often referred to as Earth's sister planet because they are similar in size, composition, and distance from the Sun. Venus is the closest planet to Earth in terms of size and location in the solar system.
What does your solar system include?
Our solar system includes the sun, Jupiter, and some little stuff.
Seriously. the Sun is 99.8% of everything in our solar system, and Jupiter is more than half of everything else that's left.
The "little stuff" includes 7 planets (Mercury, Venus, Earth, Mars, Saturn, Uranus and Neptune) 100 or so moons, 10,000 asteroids, and millions of meteors and comets.
Oh, and _US_.
How does the solar system operate?
The solar system operates through the force of gravity, which keeps the Sun and all the celestial bodies in orbit around it. The planets, moons, asteroids, and comets all move in predictable paths due to this gravitational force. The Sun's energy also influences the behavior and characteristics of these objects within the solar system.
What are Two space probes that flew outside the solar system?
voyager 1 and 2.... they have sent more although i am a lil fuzzy on the names... there was 1 that has been presumed dead... voager 1 and 2 are still commuicating till this day... and will be until 2020
What is the importance of the sun to all living things and the planets in the solar system?
their are a lot of importances of of the sun on earth, for example the sun is needed for plants to grow, some animal and even us need the sun to survive in this world, and plus weathers would always be cold and or clothes couldn't air dry if it rains.their are a lot of importances of of the sun on earth, for example the sun is needed for plants to grow, some animal and even us need the sun to survive in this world, and plus weathers would always be cold and or clothes couldn't air dry if it rains.
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The sun is absolutely nessaccary, thus very-very important, for the life on Earth, because without sun, all the forms of life in Earth will disappear in only a few days.
The sun delivers more than 99% of the energy that is nesseccary for nearly all the phenomena on Earth, like wind, rain, ocean streams, photosynthesis, and even fossil fuels can be said that are a part of accumulated solar energy.
How was our solar system part of a star?
One of the theories about how the solar system was created is that a small part of a giant molecular cloud somehow collapsed, creating an excess of gravity. It condensed in the middle, forming the sun, and the rest of the new solar system formed into a disk. The gravity of the newly created sun then drew asteroids and gases which then collided together to become larger. The sun then gave off a lot of solar wind (because it was newly made; it was very strong) and the inner planets were stripped of their gaseous outer layer. the outer planets, however, were not because they were further away.
This happened about (scientists estimate) 4.6 billion years ago.
this is not the same person but if you ask me i say there was the big bang theory and what caused that was a small dot in the middle of nothing and it contained everything all matter and reality it doesnt sound likely but that's how the prediction went anyway the dot suddenly exploded and sending out all kinds of galaxys and stars the big bang was a very hot explosion it went up to 5000000000 degrees celcius and that's how it formed sending out the galaxies and which the galaxies are constantly moving away from each other from the energy left from the big bang.
What cometary cloud lies one-quarter of the way between your solar system and Proxima Centauri?
The Oort cloud is a hypothesized spherical cloud of icy objects that is thought to surround the Sun at distances of up to 1.6 light-years. It is located at roughly one-quarter of the way to Proxima Centauri, our nearest neighboring star. The Oort cloud is believed to be the source of long-period comets that occasionally enter the inner solar system.
What is the largest planet in the solar system without rings?
Saturn, of course, is famous for its ring system. However, recent space probes have revealed that all of the outer planets have rings, no matter how faint they are
That means that Earth is the largest planet without a ring system. And if we count the thousand or so satellites in orbit as "rings", then I guess Venus would be next.
What is the location of Jupiter?
Jupiter is the 5th planet from the sun, and the first of the outer planets.
Where is the exploding star in the solar system?
There are no exploding stars (supernovae) in our solar system. Supernovae occur in distant parts of the galaxy, outside our solar system. The nearest known supernova to Earth was Supernova 1987A, which was located in the Large Magellanic Cloud, a satellite galaxy to our Milky Way.
What is the colest planet in your solar systems?
The coldest planet in our solar system is Neptune, with average temperatures dropping to around -370°F (-224°C). Its distance from the Sun and its thick atmosphere of hydrogen, helium, and methane contribute to its extremely cold temperatures.
What is the clockwork model of the solar system called?
The clockwork model of the solar system is called the heliocentric model. It proposes that the Sun is at the center of the solar system with the planets, including Earth, orbiting around it in a set, predictable pattern. This model was proposed by astronomers such as Nicolaus Copernicus and later refined by Johannes Kepler and Galileo Galilei.
The largest moon in the Solar System is Jupiter's moon Ganymede, which is around half the size of the planet Earth and a little smaller than Mars at around 5268km in diameter.
The second largest moon is Saturn's moon Titan, which is a little smaller than Ganymede at 5152km in diameter - Titan was once thought to be the largest moon, but as it has a thick atmosphere it was hard to determine how big the actual moon was under the clouds until the space age.
Other large moons include, going down in scale from largest to smallest - Jupiter's Callisto, Jupiter's Io, Earth's moon, Jupiter's Europa and Neptune's Triton. Their diameters can be found in any good astronomy book. Triton is around a fifth of Earth's diameter.
The smallest true planet in the Solar System is Mercury, which is about a third the size of the Earth at 4878km in diameter. However, Mercury is larger than most moons - only Titan and Ganymede are larger! (Mercury is very dense, however, so it's more massive than Titan.) The second smallest planet is Mars, around half the size of Earth.
Pluto, the traditional "ninth planet," is now considered a "dwarf planet" - a small icy round object orbiting beyond Neptune in a zone of other, similar icy comets and asteroids known as the Kuiper Belt. (Dwarf planets, by the way, are objects massive enough to pull themselves into a rounded shape, but not massive enough to have swept their orbit clean of debris. The eight real planets all dominate their orbit, but Pluto blends in nicely with the other Kuiper Belt objects and so doesn't clear its orbit.) Pluto was far smaller than the other planets, and is smaller than Neptune's moon Triton at only 2300km in diameter. It's thought that Triton was also a dwarf planet from the Kuiper Belt that was captured into orbit around Neptune.
The largest dwarf planet is Eris, also in the Kuiper Belt. It is a little bigger than Pluto at around 2600km in diameter, and is about the size of Triton. It was the discovery of Eris - an obvious ice dwarf in the Kuiper Belt that was bigger than planet Pluto - that led astronomers to question Pluto's status as the ninth planet, to define what a planet is anyway, and to introduce the new category of dwarf planet. The smallest dwarf planet is the asteroid Ceres, at around 1000km in diameter. It is about the size of France.
As well as the eight main planets and the five known dwarf planets, a huge amount of assorted debris orbits the Sun as well. Nobody knows what the smallest asteroid or comet is, because it's too small! Tiny particles of meteoritic dust rain down from space all the time and land in your hair, skin and clothes every time you go outside - so you've been hit by a meteorite! Perhaps in your hair right now is the smallest piece of debris in the Solar System.
Check the related link - it's a diagram of the smallest planets and largest moons (excluding dwarf planet Eris as this wasn't discovered at the time. Ceres is about half the size of Pluto.)
Which planet has the largest temperature difference in entire solar system?
All planets have very different temperatures at the surface.
Mercury's Maximum Temperature 465°C (870°F)
Mercury's Minimum Temperature -184°C (-300°F)
Venus' Average Temperature 449°C (850°F)
Earth's Average Temperature 7.2°C (45°F)
Mars's Maximum Temperature 36°C (98°F)
Mars's Minimum Temperature -123°C (-190°F)
Jupiter's Average Temperature -153°C (-244°F)
Saturn's Average Temperature -184°C (-300°F)
Uranus' Maximum Temperature -184°C (-300°F)
Neptune's Average Temperature -223°C (-370°F)
What happened during the accretion phase of the early solar system?
During the accretion phase of the early solar system, small grains of dust collided and stuck together, gradually building up larger and larger bodies through mutual gravitational attraction. These bodies eventually formed planetesimals, which in turn collided to form protoplanets and eventually the planets we see today. The process of accretion shaped the structure and composition of the solar system as we know it.
What is the composition and how do they analyze the structure of the solar system?
The solar system is made up of empty and non-empty space. The non-empty spaces hold things that the unaided eye can't see, and things that it can. Examples of the former are atoms, molecules, and subatomic particles aka electrons. It's the combinations of the preceding three space-fillers that create the substances such as planets and stars, which we can see.
Do other planets in the solar system have moons?
You mean in OUR galaxy?
Earth has 1 moon.
Jupiter has 63 moons.
Saturn has 57 moons.
Uranus has 27moons.
Neptune has 13 moons.
That's all I know.
Did you know that Pluto is not a planet anymore? It has 3 moons.
Which planet in the solar system has the most satellites?
Jupiter has the most satellites in our solar system, with a total of 79 known moons. These moons vary in size, with the four largest being Io, Europa, Ganymede, and Callisto.
Is Uranus 1st 2nd 3rd 4th 5th 6th 7th 8th or the 9th largest planet in your solar system?
Not counting Pluto, 4th largest. Funny how you phrase it "your solar system"
Does earth spin from left to right or right to left?
if you look at a video and the North Pole is at the top, the Earth would appear to move from left to the right (the Pacific Ocean would first appear on the left side then rotate across and disappear on the right)
How long does each planet of the solar system take to rotate?
Here are the approximate rotation periods for each planet in the solar system:
- Mercury: 59 Earth days
- Venus: about 243 Earth days (retrograde rotation)
- Earth: about 24 hours
- Mars: about 24.6 hours
- Jupiter: about 10 hours
- Saturn: about 10.7 hours
- Uranus: about 17.2 hours
- Neptune: about 16 hours
How long is a year on Earth today?
It depends on exactly what you mean by "year" and it also varies over time, so there is no single exact answer.
The short answer is either approximately 365.24218967days long (365 days, 5 hours, 48 minutes and 45.1875 seconds) on average, or approximately365.256363051 days (365 days, 6 hours, 9 minutes and 9.7676 seconds) in the year 2000, but changing slightly every year.
All scientific definitions of a "year" for our earth are within about 25 minutes of each other, but vary based on what you measure against. Everything in the universe is constantly moving relative to everything else, so there is no absolutely fixed frame of reference to measure anything against. All measurements are relative to something you choose to measure against and are only valid for the period in time in which you took the measurement. Measurements are also only accurate to the precision you can attain with the measuring equipment you use. It is impossible to measure anything with infinite precision. Every measurement is an approximation with some limited precision over a period of time where what you are measuring is constantly changing, however infinitesimally. At best you can only measure an approximate range between some limits. On top of that a "year" can be measured many different ways.
A "Tropical Year" uses the earth's tilted axis and equatorial plane to gauge the time it takes for the earth to complete one kind of cycle around the sun we call a "year". Over the course of a year as the earth orbits the sun, the earth's axis and equator change their orientation relative to the sun, cycling back roughly to the starting point once every "Tropical Year". Over these repeating yearly cycles, days and nights get longer and shorter in the northern and southern hemispheres for half of a year and then reverse back the other direction for the other half of a year. This is one primary way measure a year.
A "Tropical Year" in recent times is approximately 365.24218967 days long (365 days, 5 hours, 48 minutes and 45.1875 seconds) on average over all equatorial points. This time changes slightly from one year to the next, depends on exactly what equatorial point you are measuring the cycle of and is influenced slightly by so many factors that constantly change that we will probably never be able to predict precisely how long a "Tropical Year" thousands of years in the future will be. That far out, things could change by many seconds compared to what we do our best to estimate or predict due to tiny effects of interactions with meteors and asteroids and other things that we can not possibly predict and account for.
A "Calendar Year" is exactly 365.2425 days long (365 days, 5 hours, 49 minutes and 12 seconds) on average over any 400 year period. A year is exactly 365 days on non-leap years and 366 days long on leap years and we declare 97 of every 400 years to be a leap year. That's one in four minus one in 100 plus one in every 400 years. This is the only exact length you can cite because we define the calendar year precisely this way as opposed to measuring what actually physically happens. All other measured years can only be approximated and will always be at least slightly different from one year to the next. Even if two measured years were exactly the same, we'd never know it for sure. We'd know they were at least very, very close, but we could not know that they were the same or exactly how close they were if they were ever so slightly different by less than our ability to measure.
A "Sidereal Year" is the time it takes for the earth to orbit the sun relative to the distant stars which are not stationary, but the closest thing to stationary we can measure against so far, due to their great distance and relatively slow movement in space. The "Sidereal Year" in the year 2000 was approximately 365.256363051 days (365 days, 6 hours, 9 minutes and 9.7676 seconds).
The seasonal changes we experience each year as the earth orbits the sun are due largely to the earth's axis tilting the northern and southern hemispheres toward and away from the sun over the course of a "Tropical Year". This "Tropical Year" is what our calendar attempts to approximate by interjecting an extra day on leap years so that winter and summer occur at roughly the same time of year, year after year. If our calendar approximated the "Sidereal Year" instead of the "Tropical Year", winter and summer would slowly shift earlier and earlier in the year over time.
The severity of the earth's summers and winters also fluctuate over time partly due to the earth's orbit being elliptical. Our elliptical orbit brings us closest to the sun at one point during an "Anomalistic Year" and farthest away from the sun at another point in our orbit a half of an "Anomalistic Year" later.
An "Anomalistic Year" is approximately 365.259635864 days long (365 days, 6 hours, 13 minutes and 52.5386 seconds), slightly longer than the "Tropical Year". Because these things are not in sync with each other the distance at any given time of the "Tropical Year", such as winter or summer in the northern or southern hemisphere, from the earth to the sun becomes closer or farther from one year to the next and then eventually cycle back to roughly the same distance about every 21,000 years give or take a lot since all of these things are constantly changing a little.
Except in leap years 352 years but in leap years 353
