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 is condensation and accretion?
Condensation is the building of larger particles one atom (or molecule) at a time, whereas accretion is the sticking together of larger particles. … The planets swept up gas, dust, and small particles.
What is condensation theory?
Condensation Theory: An extension of Nebular Theory that incorporates interstellar dust as a key ingredient. … Clumps of matter form around the condensation nuclei. These clumps collide, stick together, and grow into moon-sized planetesimals. Planetesimals coalesce into a few protoplanets.
Who made condensation theory?
This theory also 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. This theory was presented by Robert Jastrow.
How do nebulas condense?
According to the nebula hypothesis, the Solar System began as a nebula, an area in the Milky Way Galaxy that was a swirling concentration of cold gas and dust. Due to some perturbation, possibly from a nearby supernova, this cloud of gas and dust began to condense, or pull together under the force of its own gravity.
Why is dust important to the condensation sequence?
Why is dust important to the condensation sequence? (a) Without dust, water vapor in Earth’s atmosphere would never have fallen to the surface as liquid water.
What is the stages of nebular theory?
The Nebular Theory would have started with a cloud of gas and dust, most likely left over from a previous supernova. The nebula started to collapse and condense; this collapsing process continued for some time. The Sun-to-be collected most of the mass in the nebula’s center, forming a Protostar .
Which comes first condensation or accretion?
Step 5: Accretion
o After condensation, growth of solid particles occurs due to collisions. o Accretion is growth of grains through collisions – the real planet building process.
Is accretion and condensation the same?
What is the difference between condensation and accretion? … Condensation: It is the process of addition of the material to an object or material or molecule at a time. Accretion: It is the process of addition of the large particles such as collection of atoms and/or molecules etc. to an object.
What happens in the process of gravitational condensation?
What happens in the process of gravitational condensation? An object decreases in size due to the collision of materials. Gas particles are formed from solar nebula materials. Solid particles are formed from solar nebula materials.
What does the capture theory explain?
Capture theory suggests that the Moon was a wandering body (like an asteroid) that formed elsewhere in the solar system and was captured by Earth’s gravity as it passed nearby. … It proposes that the Moon formed during a collision between the Earth and another small planet, about the size of Mars.
Why are the inner planets rocky?
The temperature of the early solar system explains why the inner planets are rocky and the outer ones are gaseous. As the gases coalesced to form a protosun, the temperature in the solar system rose. … In the inner solar system, only substances with very high melting points would have remained solid.
What are Jovian planets?
Also called “giant planets,” the Jovian planets occupy orbits in the outer solar system at distances ranging from 5 (Jupiter) to 30 (Neptune) times the Earth’s distance from the Sun. … The planets also have fierce winds and storms, and a rapid rotation. When compared to Earth, the Jovian planets are enormous.
Is Earth in a nebula?
The Earth was formed from the nebula that produced the Solar System. It is almost universally accepted that the Sun, the planets and their satellites, the asteroids, and the comets of the Oort ‘cloud’ grew from a cloud of gas and dust that contracted under its own gravity.
Is nebula bigger than Galaxy?
Simply put, the main difference between galaxies and nebulae are an extreme difference in size, as well as their basic structure. A nebula is a cloud of dust and gas, usually tens to hundreds of light years across. A galaxy is much larger — usually thousands to hundreds of thousands of light years across.
What does it look like inside a nebula?
Inside a nebula probably looks just as dark, with occasional hues of color around visible stars. Like a cloud; think of flying through a cloud in a airplane vs. looking up at one from the ground. It’s the same effect on galaxies.