What is the ice line in the solar system?
In astronomy or planetary science, the frost line, also known as the snow line or ice line, is the particular distance in the solar nebula from the central protostar where it is cold enough for volatile compounds such as water, ammonia, methane, carbon dioxide, and carbon monoxide to condense into solid ice grains.
Why is there a frost line?
Frost line is the depth at which groundwater freezes.
The ground contains moisture that is used by plants and animals to live and thrive, however, when cold weather hits, the groundwater begins to freeze and expand, pushing and crushing objects that are in the frozen dirt.
What is significant about the snow line of the solar system?
This line marks where the temperature in the disk surrounding a young star drops sufficiently low for snow to form, which plays a key role in how planets form.
Why the frost line is the boundary between the two types of planets we see in our solar system?
The temperature across this protoplanetary disk was not uniform. Since different materials condense at different temperatures, our solar system formed different types of planets. The dividing line for the different planets in our solar system is called the frost line.
What is the frost line quizlet?
Frost line- the distance at which it was cold enough for ices to condense-, which lays between Mars and Jupiter today.
What does the snow line refer to?
snow line, the lower topographic limit of permanent snow cover. The snow line is an irregular line located along the ground surface where the accumulation of snowfall equals ablation (melting and evaporation). This line varies greatly in altitude and depends on several influences.
What is a frost line in construction?
What Is the Frost Line? The frost line is the depth at which moisture will freeze in the ground. Due to variations in winter temperatures and soil moisture content, the frost line isn’t the same everywhere.
What is a frost line in construction terms?
The frost depth (also known as “frost line” or “freezing depth”) is the depth to which the moisture content in the ground is expected to freeze during the winter. … In general, the easiest construction solution is to build everything below the frost line.
What planets are in the frost line?
The frost line for the Solar System lies between Mars and Jupiter. It marks a major divide in planet properties because outside of it, various kinds of frozen light molecules could accumulate on a forming planet as ices (for example, frozen water captures not only oxygen, but some hydrogen).
What is the snow line how far away from the Sun is it in astronomical units?
Observations of asteroids and inspection of meteorites suggest that the snow line in our Universe is located at about 2.7 AU from the Sun (beyond this radius, the asteroids are much more water-rich).
What is bombardment in astronomy?
The Late Heavy Bombardment (LHB), or lunar cataclysm, is a hypothesized event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, at a time corresponding to the Neohadean and Eoarchean eras on Earth. … Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts.
What is the process by which the terrestrial planets are believed to have formed?
The process by which terrestrial planets formed is called accretion. It begins with the microscopic solid particles that condensed from the solar nebula’s gas.
Which are most likely to have formed outside the frost line of the solar system?
The giant planets (Jupiter, Saturn, Uranus, and Neptune) formed further out, beyond the frost line, which is the point between the orbits of Mars and Jupiter where the material is cool enough for volatile icy compounds to remain solid.
Which is one difference between the way terrestrial planets and jovian planets formed?
While terrestrial planets accreted from planetesimals made of rocks and metals, they ended up too small to capture significant amounts of the abundant hydrogen and helium gas in the solar nebula. The jovian planets, however, formed farther from the Sun where ices and rocks were plentiful.