Astronomy Picture of the Day

APOD [Note: most of the pictures below are taken from this website]

Apparent Motions in the Sky

South Celestial Pole
Solar Eclipse
Lunar Eclipse
Retrograde Motion of Mars
Retrograde Motion Schematic
Phases of the Moon (animated)

Solar System

Phases of Venus
Kepler's Laws (a java applet)
Powers of 10
Pieces of comet Shoemaker-Levy 9
Comet Shoemaker-Levy 9 swallowed by Jupiter

Formation of the Solar System-Examples of Protoplanetary Systems

Horsehead Nebula, a Star forming region
Eagle Nebula, a Star forming region
Protoplanetary Disks in Orion Nebula
A close-up of some Protoplanetary Disks
A Schematic View of Protoplanetary Disks in a Star Forming R egion

Cratering in the Solar System

Crater Chain on Ganymede
Impact crater on Mimas
Meteor Crater in Arizona

Earth

Plate Tectonics (USGS site)
Plate Tectonics, animation (UArizona site)
Ozone depletion over Antarctic, 1950 to present

Telescopes

Diffraction applet (copyright [c] 1997, S. Kiselev and T. Yanovsky-Kiselev)
Explanation of Optics, and Pictures of Telescopes (taken from prof. J. Dickey)
Night Sky
Arecibo Radio Observatory, largest single dish
National Solar Observatory, Sunspot, New Mexico

The Sun

Sun's image in Hydrogen-alpha emission lines
National Solar Observatory, Sunspot, New Mexico
Solar Spectrum
Solar Corona seen during Solar eclipse
Solar prominence of Jan 17-18 2000, animation
Sun at Extreme UV wavelengths - short animations
Neutrino Detector, Sudbury, Ontario, Canada
History of neutrino discovery
More interesting information about neutrinos
Doppler Image of Sun's rotation
Solar granulation
Solar 5-minute oscillations
Another mode of Solar oscillations
Animation of Solar oscillation modes (St. Mary's University, Canada)

Stars

Binary Stars (UOregon site)
HR diagram

Insterstellar Medium

Reflection Nebulae
The Trifid Nebula
Reflection Nebula in Orion
The Pleiades Star Cluster, and its Reflection Nebula
The Tarantula Nebula (Emission Nebula)
The Eagle Nebula
Hydrogen Gas in the Milky Way Galaxy
Interstellar Dust Grains
Interplanetary Dust Grains
Identified Interstellar Molecules (NASA site)

Stellar Evolution

Periodic Table of Elements
Gravitational redshift (Dr. Hamilton)

MIDTERM 2: Review
MIDTERM 2: Answer Key

Galaxies

A Spiral Galaxy
A Spiral Galaxy with a warped disk
A Spiral Galaxy with a Supernova on the edge
Whirlpool galaxy and its satellite
Spiral Galaxy NGC 1232
A Spiral Galaxy in different colors
Hydrogen Gas in the Milky Way Galaxy
Spiral Arm Formation in Spiral Galaxies (Southampton Univ., UK)
Formation of Spiral Galaxies - a Computer Simulation (Edinburgh, UK)
Picture Gallery of Spiral Galaxies (NOAO site)
Picture Gallery of Elliptical Galaxies (NOAO site)
Hubble Deep Field---a whole bunch of very faint, very distant galaxies
Galaxy Collision in Coma Cluster
X-ray halo of elliptical galaxy
Formation of Milky Way Galaxy [OVERHEAD]
Microlensing MACHO Project (McMaster site)

Active Galactic Nuclei, Quasars

A jet emanate from the center of a nearby Elliptical galaxy
Quasar, jet, and radio lobes
Images of Radio Galaxies and Quasars
A Quasar Portrait Gallery

The Center of the Milky Way Galaxy

Galactic Center in the Infra-Red
Galactic Center at Radio Wavelengths
Galactic Center: the very center
Galactic Center: stars orbiting the center

Cosmology

Examples of Galaxy Surveys
A large survey of galaxies (2dF, Dr. Colless et al)
Edwin Hubble at Palomar Telescope
Hubble Law diagrams (Dr. Wright, UCLA)
Cosmic Microwave Background Spectrum
Map of the Sky in Microwaves (Cosmic Microwave Background Radiation, COBE satellite)
MAXIMA, a Balloon-Borne Cosmic Microwave Background experiment
Evolution of Structure in the Universe
Simulated present day Universe (UWash)

FINAL EXAM: Review
GRADES: labs, essays, moon, midterms