My Notes, From A Ravenclaw (Year 1)

written by Anne Pickering

These are my notes for all classes through year 1. There are 7 course in the first year. Charms, History of Magic, Herbology, Potions, Transfiguration, DADA, and Astronomy. I will add as I am able. Please check back for new content.

Please keep in mind, these are only major points and not to be substituted for the actual lessons!

Last Updated

05/31/21

Chapters

56

Reads

30,805

Astr 101 Week 7

Chapter 49

Uranus

Rotates on the it's side

The first planet discovered without a telescope in 1781 by William Herschel 

The only spacecraft to date that has been sent to Uranus is Voyager 2. 

17 hrs for 1 full rotation on its axis and 84 earth years to rotate around the sun.

Uranus has about twenty seven moons

Miranda was named for the Princess of Milan in one of Shakespeare’s most
famous works, The Tempest. The surface of the moon is said to be marred
with canyons deeper than the Grand Canyon in America. Miranda is not a
big satellite either. It is rather one of the smaller moons that Uranus
has. 

the inside of the planet is divided into layers. The core, or the
innermost layer, is made up of the same material as Jupiter and Saturn -
rocky material. However, this rocky material is widely distributed
throughout the planet. What envelopes the core is liquid hydrogen (not
the same material as what Jupiter and Saturn have that envelopes their
cores) and helium. These two elements are also found in the atmosphere,
which we will talk about now. 

Uranus’ atmosphere is mostly made up of hydrogen, helium, and methane.
However, it has been known for a while that traces of ammonia and water
vapor do exist in the planet’s atmosphere. The temperature of Uranus’
atmosphere can reach very cold temperatures! 

Uranus has rings! However, its rings are fainter than most, like
Jupiter’s rings. The inner set of rings are mostly dark coloured, which
contrast from the brightly coloured set of rings by far. Uranus’ rings
are made up of particles that are fairly large in size. Some particles
have reached the length of ten metres, while others may reach the length
of a fifth of it.



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