Which of the following is thought to explain many of the exceptions to the rules of our solar system?
Which of the following is thought to explain many of the “exceptions to the rules” of our solar system ? There are clear patterns to the rotation and orbits of large bodies in the solar system . There are vast numbers of asteroids and comets. There are a few notable exceptions to the rules .
What was the frost line of the Solar System Group of answer choices?
Explain how temperature differences led to the formation of two distinct types of planets . The frost line in the solar nebula lies between Mars and Jupiter. It is the distance where it was cold enough for hydrogen compounds to condense into ices.
When did the objects that we now see as asteroids and comets form in the solar system?
4.6 billion years ago
What substances were found in the innermost regions within about the inner 0.3 AU of the solar system before planets began to form?
|What substances were found within the inner 0.3 AU of the solar system before planets began to form ?||rocks, metals, hydrogen compounds, hydrogen, and helium, all in gaseous form|
|What substances existed as solid flakes within the inner 0.3 AU of the solar system before planets began to form ?||none|
What is the giant impact hypothesis for the origin of the moon?
The prevailing theory supported by the scientific community, the giant impact hypothesis suggests that the moon formed when an object smashed into early Earth. Like the other planets, Earth formed from the leftover cloud of dust and gas orbiting the young sun.
Which of the following orbits is the most eccentric?
Planets in our own solar system orbit the sun in an almost circular fashion, but there are some whose orbits are far more elliptical – or “eccentric” – in nature, and this planet, HD 20782, has the most eccentric orbit ever seen.
What is the nebular theory?
The Nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests that the Solar System formed from gas and dust orbiting the Sun.
Why are no planets found within 0.3 AU of the sun?
Whereas a previous paper we covered on Astrobites proposed that the building blocks of planets (called planetesimals) may have never formed at less than 0.3 AU , Spalding instead argues that the Sun would have blown away all of the smallest planetesimals in this region with its powerful solar wind.
What is nebula condensation?
Nebular – Condensation theory. As a result of the spinning, the nebula flattens out to form a disk, much like a clump of dough which is spun into a pizza. As it continues to flatten and spin, the nebula becomes denser and hotter, particularly in the center. The dense, hot center eventually forms into a star, the Sun.
What is a comet asteroid and meteor?
The Short Answer: An asteroid is a small rocky object that orbits the Sun. An asteroid is a small rocky object that orbits the Sun. A meteor is what happens when a small piece of an asteroid or comet , called a meteoroid , burns up upon entering Earth’s atmosphere.
What was the first step in the formation of the planets?
Formation . Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material.
Are comets bigger than asteroids?
These are much larger than comets . An asteroid only 5 km across would be classi- fied as small; Ceres, the largest, is 100 times bigger than this. Their orbits are thus less circular than the main asteroids , but more circular than the typical comet .
Why are the Jovian planets rich in hydrogen?
The jovian planets , however, formed farther from the Sun where ices and rocks were plentiful. The cores accreted rapidly into large clumps of ice and rock. Eventually, they got so large, they captured a large amount of hydrogen and other gasses from the surrounding nebula with their enormous gravity.
Which planet is the farthest from the sun?
How many of the planets orbit the sun in the same direction?
All eight planets in the Solar System orbit the Sun in the direction of the Sun’s rotation, which is counterclockwise when viewed from above the Sun’s north pole. Six of the planets also rotate about their axis in this same direction. The exceptions – the planets with retrograde rotation – are Venus and Uranus.