PHYS 005 Lecture Notes - Lecture 2: Dark Energy, Kuiper Belt, Magnetar
4 Jul 2018
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4/06/18 Session 2 Stars and the Solar Systems
Readings- Chapter 1 Sections 2,3
Chapter 1 Sections 4,5,6,7
Pay attention to
-which moons have water
- which ones are gaseous/ solid
Saturn-
gaseous, less dense than water
30 years round sun
10 hours in a day
Rings on saturn not as powerful as Jupiter rings
Ethereal & material rings
●Tiny particles of ice and dust
●Multiple rings
Do have hurricanes and cyclones like Jupiter, but not as big
●Moons
○Titan- second biggest moon
○Always covered by clouds
■Venus- also covered by clouds
○Lander found oceans of liquid methane (farts)
■Covered by a thick atmosphere that protects from sun radiation & meteorite
■* good for life
○Enceladus
■Tiny-crust of ice
■Highest radiation in the solar system
■Geysers
●Subsurface water that is boiled from inner heat
●Provides resources
●Which moons belong to what planets
Uranus
●Gaseous, blue
●Around sun- 85 years
●Itself- 17 hours
●Rotates on its side
●Due to a crash billions of years ago
●Storms
Neptune
●Discovered through Uranus
●Great Dark Spot (size of Earth) disappeared in 1994
●Fastest winds- 150k mph
Document Summary
4/06/18 session 2 stars and the solar systems. Rings on saturn not as powerful as jupiter rings. Do have hurricanes and cyclones like jupiter, but not as big. Lander found oceans of liquid methane (farts) Covered by a thick atmosphere that protects from sun radiation & meteorite. Subsurface water that is boiled from inner heat. Due to a crash billions of years ago. Great dark spot (size of earth) disappeared in 1994. Became a moon of neptune- has planet characteristics. Geysers of gas (nitrogen & liquid nitrogen) Asteroid belt filled with leftover asteroids from when the planets were forming. Ice mountains, charon is geologically old, bigger moon than itself. 5 moons- charon is its bigger one. Yellow stars- 10 million years -> red giant -> (dissolves) into core white dwarf. Red super giant -> supernova -> collapses into black hole or becomes pulsar (lighthouse), magnetar (magnetic field) neutron star- more compact & hot white star.
