What is the condensation sequence theory?

In planetary science, the condensation sequence refers to the order in which chemical compounds transition from gas to solid phase in a protoplanetary nebula (disk), based on the condensation temperature of each compound.

What does condensation theory mean?

The Condensation Theory: This theory proposes that the Moon and the Earth condensed individually from the nebula that formed the solar system, with the Moon formed in orbit around the Earth. However, if the Moon formed in the vicinity of the Earth it should have nearly the same composition.

What is the condensation theory based on?

Condensation Theory: An extension of Nebular Theory that incorporates interstellar dust as a key ingredient. The solar nebula is initially a thin gas of hydrogen and helium strewn with tiny dust particles. These tiny grains serve as the building blocks of the planets.

What is the solar nebula condensation theory?

solar nebula, gaseous cloud from which, in the so-called nebular hypothesis of the origin of the solar system, the Sun and planets formed by condensation. Swedish philosopher Emanuel Swedenborg in 1734 proposed that the planets formed out of a nebular crust that had surrounded the Sun and then broken apart.

What is the process of condensation in astronomy?

Condensation is the process of forming solid particles from the solar nebula, whereas the solar nebula is a cloud of interstellar gas and dust that condensed to form the entire solar system, including the sun and planets.

Why is dust important to the condensation sequence?

The key ingredient in the modern Condensation Theory is dust, which helps to cool the gas, and forms the nuclei for planetesimals to grow.

What role did condensation temperatures play in the formation of the planets?

The condensation temperature of a substance is the temperature at which the substance solidifies from gas. In the inner part of the solar system where the temperature was high, only substances with high-condensation temperatures could become planets.

What are the 6 stages of nebular theory?

Terms in this set (6)

• Formation begins and gravity causes the nebula to contract. …
• gravity pulls in the mass of the nebula in, then starts spinning, then the disk forms (planetary, solar disk); gravitational energy gets converted to thermal energy (heat); gets so hot, then nuclear fusion, then the sun is born.

Why did the solar system flatten?

Eventually, a portion of this material collapses toward the center, forming a star, and the spinning cloud begins to flatten into a disk due to the rotation. It’s out of this rotating protoplanetary disk of gas and dust that planets are born, resulting in a relatively flat solar system.

How is this distribution of planet types explained by the condensation theory?

The condensation theory of the solar system explains why the planets are arranged in a circular, flat orbit around the sun, why they all orbit in the same direction around the sun, and why some planets are made up primarily of rock with relatively thin atmospheres.

Has Voyager reached the Oort Cloud?

At its current speed of about a million miles a day, NASA’s Voyager 1 spacecraft won’t enter the Oort Cloud for about 300 years. And it won’t exit the outer edge for maybe 30,000 years.

How long will it take Voyager to pass through the Oort Cloud?

Voyager 1, the fastest and farthest of the interplanetary space probes currently leaving the Solar System, will reach the Oort cloud in about 300 years and would take about 30,000 years to pass through it.

Will Voyager 1 leave the Milky Way?

By 500 million years from now, the solar system and the Voyagers alike will complete a full orbit through the Milky Way.

What is beyond the Oort Cloud?

Once you get beyond the Oort Cloud, there really isn’t much mass to speak of. The interstellar volume is largely occupied by the appropriately named Interstellar Medium, or ISM.

Is Sedna in the Oort Cloud?

Sedna, which was discovered in the outer reaches of the Solar System in 2003, is most likely a dwarf planet. And as the furthest known object from the Sun, and located within the hypothetical Oort Cloud, it is quite the fascinating find.

How did Jan Oort discover the Oort Cloud?

By studying the orbits of long-period comets, Oort noticed that many of them seem to originate in a zone far beyond the orbit of Pluto. Although he was not the first astronomer to propose such a comet swarm, the as-yet unconfirmed cloud is usually known as the ‘Oort Cloud’.

Does the Oort Cloud have moons?

Comet Origins

How many Aus is the Oort Cloud?

The Oort Cloud is a spherical layer of icy objects surrounding our Sun, a star, and likely occupies space at a distance between about 2,000 and 100,000 astronomical units (AU) from the Sun.

What is the difference between Kuiper Belt and Oort Cloud?

The Kuiper cloud, which is more commonly known as Kuiper belt, is a disk-shaped region that is seen beyond Saturn’s orbit. The Oort cloud is a mass of trillions of comets and dust that circle the sun. The Oort cloud is not really a cloud yet it extends three light years from the sun.

What is the temperature of the Oort Cloud?

The temperature of the Oort cloud at minimum is absolute 0 degrees Celsius and the highest temperature is 4 degrees Celsius. The Oort cloud has a estimated total mass 10-100 times that of earth(About 597360-5973600 tonnes).

Why is the Oort Cloud important?

The Oort cloud is the proximate source of observed nearly parabolic, so-called ‘new’ comets entering the planetary region, and is also the presumed source of the long-period comet flux and the majority of Halley-type comets (HTCs).

How dense is the Oort Cloud?

The Oort Cloud, on the other hand, has trillions of objects within a sphere of about 50,000 AU in radius, which, at a lower bound of one trillion objects, gives a number density or about 1.91×10−3 comets/AU – and that’s a conservative estimate.