Astronomy 3 -=-=-=- Lecture 2: the Sky Around Us
The quiz do the reading first !
Access to the class website
Distance Scales, using light as a reference
(light travels about 300,000 km per second)
Questions to answer:
What are jovian planets made of?
What is their internal structure?
What is the weather like on jovian planets?
Bigger than Earth, and with more mass than Earth
Lower density, so different composition from Earth
Rings (all four hav
Messenger Spacecraft image
Astronomy 3 Lecture 12
More on Terrestrial planets, atmospheres
The UCLA Meteorite Gallery
room 3697, Geology Building
Why are the cores
Astronomy 3 Lecture 18: Characteristics of Stars
Scores posted in my.ucla gradebook
Standard deviation: 15%
Grading: A/B border mid to high 80s
B/C border - ~70
< 60? (17 of you) - co
Astronomy 3 Lecture 11: more on exoplanets,
" " " " " " " " the inner solar system
Last point on star formation its not simple
Four ways to find planets:
Radial velocity: planet's orbit makes star wobble
Transits: planet blocks a bit of starlight
Astronomy 3 <><><><> Lecture 3
Textbook expected in bookstore Thursday or Friday
you can purchase the e-book at:
click sign in or regi
of the course
1) to elucidate the origins of our planet Earth in the context of structure
formation in the universe, star formation in our Galaxy, and planetary system
formation. Where did we come from?
2) To demonstrate that science is not a body
Astronomy 3 Lecture 4:
Understanding Planetary Motions
This is Charon,
The moon of Pluto.
Half the diameter of Pluto
1/10 the size of Earth
Right Ascension & Declination
Like latitude and longitude on the Earth.
Declination is the angle
Astronomy 3 Lecture 17
more moons, measuring stars
In fact, Io is the most volcanically active world in
the solar system.
How can this be?
a differential gravitational force
All Galilean satellites have synchronous rotation about Jupi