Astronomy Resources

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Astronomy Picture of the Day Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. There is also an archive link for previous pictures.
Astrophysics Visualization The Milky Way ensnares a neighboring galaxy, squashes it, and sucks it into orbit. A pale bubble bulges from the sun's surface and then explodes into a ragged fountain. Those are just two of the dramatic selections you can screen at the Astrophysics Visualization Archive from the American Museum of Natural History's Hayden Planetarium. Produced by researchers at various institutions, the site's 50 movies and animations show off topics in planetary science and astronomy. Included is a still in which the ripples illustrate how a cluster of galaxies warps passing light, a phenomenon known as gravitational lensing.
Cosmic Rays website
Gravitational Astronomy Animations This paper describes clever graphical solutions to a problem in which a two body system, e.g. a binary star, is moving at constant velocity relative to an fixed observer, e.g. the sun. It turns out that the observed path can be a sine wave, a prolate cycloid, or a curate cycloid depending on the velocity at which the system is moving relative to the observer. Even if this makes no sense to you at all. Please check out the animations. They are fascinating--sort of like watching a lava lamp.
Search for Interstellar Dust An interactive internet based search for interstellar dust in the Stardust aerogel collector...In January 2004, the Stardust spacecraft flew through the coma of comet Wild2 and captured thousands of cometary dust grains in special aerogel collectors. Two years later, in January 2006, Stardust will return these dust grains --- the first sample return from a solid solar-system body beyond the Moon --- to Earth. But Stardust carries an equally important payload on the opposite side of the cometary collector: the first samples of contemporary interstellar dust ever collected. As well as being the first mission to return samples from a comet, Stardust is the first sample return mission from the Galaxy. But finding the incredibly tiny interstellar dust impacts in the Stardust Interstellar Dust Collector (SIDC) will be extremely difficult.

This website solicites volunteers to help search for these tiny samples of matter from the galaxy. Volunteers are critical to the success of this project. Help find the first samples of contemporary Stardust ever collected.

Huygens Landing on Titan (movie). The Huygens space probe landed on Titan, a moon of Saturn, in 2005. This movie allows you to watch the actual landing on another planed. The movie is spectacular. 16MB Quick time movie.
Black Holes is an award winning website dedicated to explaining black holes. Some of the cool stuff includes a virtual experiment that drops a clock into the void of a black hole.
Analemma is a graphical device for determining the position of the sun relative to the earth. It takes into account the inclination of the earth and the elliptical or bit of the earth. For an explanation of how it is derived try with animations try: Analemma Explained.
San Diego Astronomy Association Events is a description of event locations and the events that the SDAA will be participating in or sponsoring.
Astr 100: Principles of Astronomy
Astr 109: Astronomy Laboratory
Astr 120: Solar System Astronomy
Astr 150: Discovery of the Cosmos
Astr 170: Radical Universe
Astr 180: Life in the Universe
Astr 205: Elementary Astrophysics
ComPadre Astronomy Network is a network of collections that provides learning resources and interactive learning environments for physics and astronomy students and their teachers.
Google Mars Like MapQuest for the planet Mars! Fly over the surface of Mars, zoom in, zoom out, or request to be taken to your favorite Martian canyon or mountain. You might even get a close-up view from one of the Martian missions.
Prof Veal Website
Satellite Tracking Keep tabs on the current position of the international space station or any of 8000 satellites. Great 3D views of orbits of satellites. See what "low earth orbit" implies.
NASA Cosmology Primer Eighteen chapters tackle big bang basics and recent extensions of the theory. For example, to keep the universe stable, Einstein penciled a factor called the cosmological constant into his formulation of general relativity--and later regretted it. However, some cosmologists now advocate reviving the constant to explain observations that suggest the universe's expansion is speeding up.
Astronomy Online Nominated as one of the five best science sites this site has it all--encyclopedic astronomy knowlege, greeat photos, observing resources, astronomy software, etc.
Spacesounds This site features various energy sources translated into frequencies we can hear. Lightning in Saturn's atmosphere sounds like raindrops pattering on leaves, and the microwave radiation left over from the big bang is reminiscent of a vacuum cleaner running in the next room. Tune in to the magnetosphere of Jupiter's moon Ganymede, the Vela pulsar, and other objects.
Space Audio This site features various energy sources translated into frequencies we can hear. The squeaks, chirps, roars, and other noises will keep you fascinated.
Galaxy Zoo is a project requesting volunteers to help classify a million images from the robotic sloan Digital Sky Survey telescope. The human brain is much better at this type of pattern recognition than any current computer algorithm. Volunteer and you will view parts of the Universe that literally no-one has ever seen before and get a sense of the glorious diversity of galaxies that pepper the sky. Visit the website for further instructions.