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The Solar System
Transcript of The Solar System
The Asteroid Belt
- Between mars and jupiter
- About half the mass of the belt is contained in the four largest asteroids, Ceres, Vesta, Pallas, and Hygiea.
- Started out as proto planets, but Jupiters gravity was too powerful
The Jovian (gas) Planets
The Terrestrial Planets
Why is it even here?
4.5 billion years ago, there was a gorgeous nebula...
Then gravity pulled it into a
And this concludes the tour of our little home.
Our tiny little secluded corner of the universe
What does planetary formation look like and why does it happen?
-big dirty space snowballs.
- Found in the Kuiper Belt on the outskirts of the solar system
-100 billion comets in the Kuiper belt
Meteoroids, Meteors, and Meteorites, Oh My.
Whats the difference between them all??
Where have 90% of are meteorites been found ??
The discovery of Pluto
6 steps to forming a Solar System
1. Solar nebula forms
2. Formation of protosun
3. Rings and planetesimals
4. Rocky planets form
5. Then the gas giants
6. Remaining debris
In a nutshell: An iron core, wrapped in a blanket of hot magma, covered in a rocky jacket.
Not massive enough for an atmosphere
Fun fact: Mercury's wobbly orbit was used to prove Einstein's theory of General Relativity.
daytime temps are as high as 800F while night time temperatures are as low as -290F. Why?
Dubbed Earth's sister planet. Why?
On the surface, it couldn't be more different!
Runaway greenhouse effect due to carbon dioxide atmosphere (860F average temp)
Clouds made of sulfuric acid.
One day is 260 earth years
Mystery: Every 500 million years the surface melts
Heavy volcanic activity.
Planet with the most perfectly circular orbit.
most people fail to appreciate what a gem the Earth is.
perfect for the rise of life:
oxygen and carbon rich atmosphere,
temperature just right for liquid water,
a strong magnetic field that protects us from solar radiation.
largest terrestrial planet
23.5 degree tilt which causes what?!
Chaotic, rough surface covered with dunes.
Pinkish-orange due to iron-oxide (rust)
Tons of evidence there was once water:
Valley networks appear to be caused by rain and water flowing under ice.
Craters with water run off markings.
In the summer it can be a glorius 77F
In the winter it is an atrocious -200F
Largest planet known for huge storms and powerful magnetosphere,
But it has the shortest day of any of the planets. What does that mean?
318 times more massive than Earth
core is like a little mini-planet made of rocks and metals
the colored bands are called belts and zones.
famous red dot is a high pressure storm
Only planet less dense than water
beautiful icy rings—roche limit
moon titan is larger than planet mercury
the last planet we can actually see
rings are made from dirty ice chunks all following individual orbits
why a flat disk?
ice giant made of frozen water, methane, ammonia,
Only planet to get knocked on its ass
coldest planet in the atmosphere,
also has a ring system
lies twice as far from the sun as Saturn
a mystery until voyager II flew past it in 1986
smallest of the ice giants
most dense of the gas planets,
first planet discovered by mathematical speculation alone
Discovered in 1846, and since then only one year has passed on Neptune.
But wait! Why do things orbit anyway?
It's gravity: shouldn't things all just get sucked together into a big ball
Oh wait, sorry!
You're not a planet anymore.
Sucks to be you.
where do comets tails point?