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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
If the earth had no atomisphere?
If the earth had no atmosphere then there would be no life on earth and you would not be there to ask this question!
Would the term light year be useful in a model of the solar system?
It would not because a light year is too large a unit. A more appropriate measurement unit is the Astronomical Units (AU), the average distance from the Sun to the Earth.
The Solar system is thought to extend to the Oort Cloud, a theorised collection of icy objects which orbit the sun at a distance of approx 1.9 light years = 100,000 AU.
The Heliopause, which is the distance at which the Solar Wind, (the Sun's radiation) is stopped by the interstellar medium, is only around 120 AU.
The outermost planet, Neptune, has a radius of approx 30 AU = 0.0005 light years - an indication that a light year is not an appropriate measurement unit..
Unscramble the letters resdoita it has something to do with the solar system?
The letters 'resdoita' unscramble to spell the word asteroid.
An asteroid relates to the solar system.
What is Saturn's average high and low temperature range?
The average temperature at the "surface" of Saturn is about minus 150 degrees Celsius.
In fact that doesn't vary much from poles to equator.
So, there not much of a maximum and minimum.
What is a description of solar system in which all planets revolve around earth?
Geocentricism is the belief that the Earth is the center of the Universe and all other celestial objects revolve around it. (The Geocentric Theory)
What accounts for the formation of the solar system?
Gravity, the mass of the planets, and how many and what life forms exist on each. Also the sun, and each planet's moons.
How are the planets of the solar system grouped?
U can group the planets by size,weight and amount of moons
"Apogee" and "perigee" are the points in the orbit of an Earth satellite where the
orbiting body is farthest from and nearest to the Earth, respectively. I don't think
that's what you're looking for. I suspect you're asking for the point in its orbit where
Pluto is farthest from the Sun ... the point called its "Aphelion".
Pluto's orbit is quite eccentric, that is, non-circular:
-- At aphelion, it's 7,311,000,000 km (4,543,000,000 miles) from the sun.
-- At the other extreme, called "perihelion", it's 4,437,000,000 km (2,757,000,000 miles) from the sun.
-- Pluto's orbital period is 246 Earth years. Since its discovery in 1930, Pluto
has completed less than 1/3 of a single orbital revolution.
Why is pole star not a member of the solar system?
The nearest star is 9000 times as far away as Neptune. The pole star is 80-100 times further than that.
The Prime Meridian on Earth is nothing special; there is no uniquely useful point of reference. The Prime Meridian is where it is because it goes through the Royal Observatory in Greenwich, England - and they were the guys who decided it.
On other planets, such as Mars, astronomers or planetographers will choose some reference point for their own reasons, and henceforth, that will be the "prime meridian" of that planet. When humans go forth into the galaxy and begin settling other planets, it is likely that the First Landing site will become the Prime Meridian of that planet.
What are the different parts of the solar system?
A star, planets, satellites of the planets, asteroids, meteors, comets, dust particles and also vacuum.
What are the contents of our solar system?
From a mass standpoint, the best answer is "The Sun, Jupiter, Saturn, and miscellaneous debris."
More specifically: other than the Sun, which is nearly all the mass of the solar system, there are 8 planets, satellites of those planets (a couple of hundred of these), asteroids, Kuiper belt objects (and what are sometimes called "trans-Neptunian objects" for lack of a better name), the Oort cloud, and weirder things like comets and the rings of the outer planets.
What were the early ideas of the solar system and who thought of them?
Aristarchus of Samos thought that the sun was at the center of the universe and some "educated" greek people thought that the earth was the center of the universe but they were dead wrong because modern science now has evidence that the sun is the center of the universe.
When did Copernicus creates the first heliocentric model of the solar system?
Copernicus lived from Feb 1473 until 24th May 1543. His book "De revolutionibus orbium coelestium" was published just before his death.
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However, Copernicus didn't publish the first heliocentric model of the solar system. That was Aristarchus of Samos, a Greek astronomer and mathematician, about 2400 years ago.
What planet have in the solar system haves 13 rings?
The planet in the solar system that has 13 rings is Uranus.
How did Copernicus disprove ptolemys theory about the universe?
Shortly before Copernicus died he figured that the Earth was notthecenter of things, but the Sun was. This theory is still used today.
He worked out this this theory from detailed observations of the orbit of Mars.
What are the best candidates for life in our solar system?
Who knows - the options are almost limitless. Depends on what you term "life " as
Candidates are:-
- Venus - could have harboured life - but any chance of detecting it has been erased.
- Earth - Well there is life.
- Mars - there is a good chance that life did exist earlier on in it's life
- Europa - Possibility of a liquid ocean of water. Life may exist in volcanic vents (Black smokers)
- Titan - Has an ocean (probably ammonia) which may harbour primordial life .
Why are the inner planets lumped together?
The planets are "lumped" together because they are in the gravitational pull of the sun.
