Astronomy For 1St Years Notes

written by Thomas Slee

My notes for Astronomy for 1st Years. Please, read what I have written and enjoy this book of notes for Astronomy for 1st Years. If you have any questions or need help with Astronomy, email me and ask for tutoring at hih6899@gmail.com Have fun!!

Last Updated

05/31/21

Chapters

9

Reads

6,867

Lesson 5 (Jupiter)

Chapter 5

Mars is the last terrestrial planets in the Solar System. Next ones are "gas giants," planets made of gaseous or non-solid materials. One would have to navigate the Asteroid Belt to get to these so called "gas giants."

Comets and Asteroids and Meteors, Oh my!

The Asteroid Belt includes 1.1 million to 1.9 million asteroids & 1,000,000s of smaller ones. Formed around the beginning of the Solar Systems beginning, when debris was colliding & forming planets. Though, Jupiter's massive gravitational pull impeded another planet & formed the Asteroid Belt.
Asteroid/minor planets/planetoids are fragments of our Solar System's birth. Composed of various rock & minerals, they possess no atmosphere or air. They can get as big as 933.41952km in diameter. There are exceptions of asteroids floating outside the Asteroid Belt. There are asteroids formations called Near-Earth Asteroids & consist of Apollos asteroids, Amors asteroids & Atens asteroids.
Asteroids are not comets. Comets are frozen water, dust, frozen methane or frozen carbon dioxide. Comet is associated with a "tail" on its end. The tail is made when the comet is close to the Sun. The tails are dust and ice particles being turned to gas & then into ions. Comets are thought to come form the Oort Cloud, thought to be even further than the last planet in out Solar System.
Meteoroids are 0.804672km in diameter & are a form of smaller space debris. They are known as "meteors" once they enter Earth's atmosphere. Though they burn up before touching the ground. Meteoroids, asteroids or comets that reach the ground are known as "meteorites."

The Great Giant

Jupiter is the 5th planet in our Solar System. This is 5.2x the average distance of Earth to the Sun.
Jupiter is named after the Roman King of the Gods & God of Thunder & Sky, Jupiter/Jove. Largest planet in our Solar System. It is 2.5x the mass of all objects in our Solar System, except the Sun. The core is unknown, but is theorised to be made of a rocky core with a layer of liquid, metallic hydrogen above the core taking up most of the planet.
Atmosphere=90% hydrogen & 10% helium with traces of water, ammonia & methane. There are bright hues on the planet referring that there may be sulfur as well.
There are different coloured "bands" running around the planet. Each band represent high powered winds, each going in a different direction. Darker the band, the lower the pressure system is, the lighter the band, the higher the pressure. A large red spot is on the planet. This is actually a high pressure storm (like a hurricane) that has been around for 600 years.
Fastest moving planet in out Solar System. One day on Jupiter takes only 10 Earth hours, one year on Earth is only 11.86 Earth years.
Has 67 moon, the 4 most famous are the Galilean Moons. A mathematician discovered the moons: Io, Callisto, Europa & Ganymeade in 1610. This was the first discovery that wasn't geocentric (proved that the Earth wasn't the centre of the Solar System). Jupiter's moons give off dust as they orbit Jupiter & create faint rings around the planet. Pioneer 10 visited Jupiter in 1973 & first recorded these rings. 8 spacecraft have passed Jupiter altogether, the recent one being New Horizons by NASA, it will be exploring the outer reaches of the Solar System.

ASSESSMENTS

Lesson 5 Quiz-90%=9 points=O=Outstanding
30 minutes. 5 True/False questions, 5 questions multiple choice.

Lessons 1-5 Quiz-90%=9 points=O=Outstanding
No due date. 7 True/False questions, 3 Multiple Choice questions.

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