HISTORY
Excellent history of astronomy up to the time of Galileo
New interactive history of cosmology website from the American Institute of Physics
The Story Behind the Science -- bringing science and scientists to life!
Click below for some wonderful biographies; here
is the main index of the website.
        
Ptolemy  
Hipparchus 
Copernicus
 
Kepler 
Brahe* 
Galileo 
Newton 
Halley
*Click on the link "Tycho Brahe's Nose" for a more "colorful" Tycho Brahe page,
including his nose, his pet moose and his death.
The
Shapley-Curtis Debate (for later in the semester)
GOOD GENERAL WEBSITES WITH RELEVANT MATERIAL
George Rieke's online class notes - excellent!
General astronomy animations and figures
Online notes from astronomy class at U. Oregon
EXPLAINING THE SKY: COPERNICUS VS. ARISTOTLE & PTOLEMY
Schematic of what retrograde motion looks like. Double-click the image to start.
What it really looks like, shown here when Jupiter and Saturn happened to be located in the same part of the sky.
Retrograde Motion - Ptolemy's explanation
Retrograde Motion - Copernicus' explanation
SCALE
Refresher on Scientific Notation
Here's an actual SCALE
MODEL
of the solar system that was constructed along Route 1 in Maine. The
scale
is 1 mile=1 AU. (1 AU = the distance from the Earth to the Sun = 93
million miles = 150 million km.) At this scale, the nearest star would be beyond the
real orbit of the moon!
MATH REVIEW; ANGLES & PARALLAX
Explanation of distances in astronomy, and parallax
GRAVITY
An Interactive applet for Kepler's Laws, Retrograde Motion, Inner Planet Phases, and more...
LIGHT, ATOMS & SPECTRA
Transverse
and Longitudinal Waves
The Rutherford Experiment:
An image of the Orion Nebula (red=hydrogen gas!)
Rieke page
on Doppler Effect and spectra
Doppler effect in 30 mph Volvo from Exploratorium
THERMODYNAMICS & PARTICLES
Blackbodies at different temperatures
Equipartition of energy explanation - scroll down to "Temperature"
CEPHEID VARIABLE STARS
Cepheid variable stars on the HR Diagram
All
about Delta Cephei and Cepheid variables
Schematic Cepheid
light curves at different P
The Period-Luminosity relation Demonstration of the
Cepheid Preiod-Luminosity relation Hunting for Cepheid Variables in M100
DISTANCE SCALES
Michael Richmond's page on the extragalactic distance scale
One version of the extragalactic distance ladder
IMAGES & SKYWATCHING
The Globe at Night - 2012, a worldwide effort to map and raise awareness of light pollution
Hubble Space Telescope Latest
Information
SKYLIGHTS: Weekly Astronomy News & Images
Stars:
Portraits of Stars and Their Constellations
Sky & Telescope Interactive Star Charts
Back to Astronomy 330 home page
if
positive charge were evenly spread throughout an atom
if
the positive charge were concentrated in a tiny nucleus
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Back to Astronomy 330 syllabus.