Astronomy HOME - Subjects
Google Sky Use Google Sky to explore galaxies, planets and stars. Included is a link to the Hubble Showcase.


AMSER: Astronomy: "The Applied Math and Science Education Repository is a portal of educational resources and services built specifically for use by those in Community and Technical Colleges but free for anyone to use." The astronomy portion of this portal searches over 170 educational resources available on selected astronomy sites.


Astronomy at Foothill College: An excellent departmental site with selected links to Astronomy sites on the Internet sponsored by Andrew Fraknoi, Chair of the Astronomy Department at Foothill College.


Astronomy in Japan: "This page is written in English and designed primarily to give people who do not speak Japanese a window into one of the most interesting and fascinating aspects of Japanese culture and provides links in the following subjects: Japanese Starlore and Astronomical History, Astronomy Activities and Articles of Human Interest, Astronomy Sites in Japan with Pages in English, Sites of Interest in History of Astronomy and Cultural Astronomy."


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." Be sure to visit the archived images and index.


Astronomy Space Center: Jim Martindale's reference guide to Astronomy gives an overview to space Science with links to dictionaries and databases.


Encyclopedia Astronautica: "Mark Wade's Encyclopedia Astronautica is a complete resource for rockets, spacecraft launch vehicles, astronauts, cosmonauts, spaceflight engines, space history exploration, and more." Browse the Encyclopedia with the alphabetic bar at the top of the page.


Ibiblio: "Home to one of the largest "collections of collections" on the Internet, is a conservancy of freely available information, including software, music, literature, art, history, science, politics, and cultural studies. is a collaboration of the Center for the Public Domain and The University of North Carolina - Chapel Hill."


Jet Propulsion Laboratory: "Founded by Caltech faculty, NASA's Jet Propulsion Laboratory is a division of Caltech and is the leading US center for the robotic exporation of the solar system."


Lunar and Planetary Institute: Click on the resources link to find scientific databases including images of craters and other planetary information. "The Lunar and Planetary Institute is a focus for academic participation in studies of the current state, evolution, and formation of the solar system. The Institute is housed in the USRA Center for Advanced Space Studies (CASS), located in Houston, Texas."


Nine Planets: An overview of the history, mythology, and current scientific knowledge of each of the planets and moons including an interplanetary index to the Solar System. Each major body in the solar system has a page which includes pictures, some scientific and historical facts, a page of data on any satellites the body may have, and links to additional resources.


Observatory Reflecting Telescopes: Provided by John M. Hill, Technical Director of the Large Binocular Observatory at the University of Arizona, this page is a list of large (2.5 meters and larger) reflecting telescopes, their specifications, the observatory where each is located, and links to their home pages.


PhysLink: " is a comprehensive physics and astronomy online education, research and reference website. In addition to its search feature, it has good links in its education and reference section."


Satellite Observing: "If you have ever star-gazed shortly after sunset or before sunrise, you have probably noticed one or two "stars" sailing gracefully across the sky. These are Earth-orbiting satellites, visible due to the reflection of the Sun's light off their surfaces toward the observer. Hundreds of satellites are visible to the unaided eye; thousands are visible using binoculars and telescopes. Observing satellites has many enthusiasts around the world."


SIMBAD Astronomical Database: "The SIMBAD astronomical database provides basic data, cross-identifications, bibliography and measurements for astronomical objects outside the solar system."


Solar System Simulator: "This is a database of spacecraft models to be used for rendering and animation. These models have been generated from CAD files and blueprints of various Earth-orbiting and interplanetary spacecraft. All of these models are in the public domain and are freely available to all."


Space Telescope Science Institute: Images from space telescopes i.e. Hubble, including digitized photos from sky surveys from the Palomar and UK Schmidt telescopes.


Space Weather Prediction Center: Developed and managed by Dr. Alan L. Kiplinger and NOAA, this page provides links to current solar data and worldwide observing plans, indexes to solar observatories, and additional solar oriented pages.


Stars and Constellations: Extensive index to sky charts for viewing constellations, stars, the planets and the Milky Way. Excellent photos are available for all of these astronomic objects.


WikiSky: "Our on-line system is a detailed sky map. We generate the map automatically using our database with the positions and basic characteristics of space objects"

Astrobiology Magazine: An earth science magazine providing current full-text articles on astrological topics.


Astrogeology: The USGS Astrogeology Science Center is a national resource for the integration of planetary geoscience, cartography, and remote sensing. Available are maps and images; information about missions, planets and moons; and resources such as a Planetary Map Index.


Astronomy Cast: "Astronomy Cast takes a fact-based journey through the cosmos as it offers listeners weekly discussions on astronomical topics ranging from planets to cosmology. The podcasts are hosted by Fraser Cain (Universe Today) and Dr. Pamela L. Gay (SIUE)."


Astronomy Online: "This site provides up-to-date links and information in all the major topics of Astronomy. A students reference as well as a resource for amateur astronomers. Additionally, this site also serves as a hub for Astronomers around the world to debate in the forums, share ideas, and gain valuable knowledge in what ever area of Astronomy he or she may be interested in."


Cameron Park Rotary Community Observatory: This new observatory is located behind the El Dorado Center in Placerville, California at 6699 Campus Drive off of Missouri Flat Road. Hours are available on the site for evening observations using state-of-the-art telescopes.


Chabot Space and Science Center: The CSSC is an observatory and planetarium with exhibits in a natural park setting that serves San Francisco Bay Area schools and citizens with astronomy and science education programs.


Eclipses: Maintained by NASA, this website provides tables and graphics of the paths of solar, lunar and annular eclipses for the years 1901-2100 plus a five millennium catalog of eclipses for the years -1999 to +3000. Also provided is information on planetary transits across the sun and general solar system data.


European Space Agency: The ESA focuses on celestial observations from the earth, including digital imagery and current space flight coverage. "It is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world."


Exploration of the Earth's Magnetosphere: "This is the home page of an overview of space research on the Earth's environment in space. The description is non-mathematical but quite detailed." Authored by Dr. David P. Stern and Dr. Mauricio Peredo. Currently affiliated with the Goddard Space Flight Center, the retired Dr. Stern is also the curator of the site.

Goddard Space Flight Center: "The mission of the Goddard Space Flight Center is to expand knowledge of the Earth and its environment, the solar system and the universe through observations from space. The Center, located in a Maryland suburb outside of Washington, DC, is home to the Nation's largest organization of combined scientists and engineers dedicated to learning and sharing their knowledge of the Earth, solar system, and



Heavens Above: Use this site to track the transit times of Satellites, the International Space Station (ISS) and NASA Shuttle Fights for overhead viewing. Also provided are tables, maps and charts for other current or relevant events such as comets or planetary transits. Developed and maintained by Chris Peat.


Helioseismology: "The science studying wave oscillations in the Sun is called helioseismology. One can view the physical processes involved, in the same way that seismologists learn about the Earth's interior by monitoring waves caused by earthquakes. Temperature, composition, and motions deep in the Sun influence the oscillation periods and yield insights into conditions in the solar interior." Created by Amara Graps, astronomer at the Southwest Research Institute in Boulder, Colorado.


High Altitude Observatory: This "observatory program includes numerical simulation of convection, radiation transport, and large-scale dynamics in both the solar and terrestrial atmospheres, plus observational programs to measure the Sun's output of magnetized plasma and radiation over the 11 year sunspot cycle of the Sun." The High Altitude Observatory (HAO) is a laboratory of the National Center for Atmospheric Research (NCAR) and is sponsored by the National Science Foundation (NSF).


High Energy Astrophysics Science Archive Research Center: "The site provides informative material on topics ranging from the solar system to black holes to distant galaxies. Education materials for teachers include activities and lesson plans which use concepts and data from high energy astrophysics in interdisciplinary lessons appropriate for math and science classes." Materials and images are also available for scientific research.


Hubblesite: HubbleSite is a website produced by the Space Telescope Science Institute's Office of Public Outreach, that provides images taken by the Hubble telescope, Hubble discoveries, and information about the telescope itself.


James Webb Space Telescope: The replacement for the aging Hubble Telescope, the James Webb Space Telescope (JWST) will be a large infrared telescope with launch planned for 2013. It will study every phase in the history of our Universe, ranging from the first luminous glows after the Big Bang, to the formation of solar systems capable of supporting life on planets like Earth, to the evolution of our own Solar System. JWST is an international collaboration between NASA, the European Space Agency (ESA), and the Canadian Space Agency (CSA).


Kavli Institute for Particle Astrophysics and Cosmology: "The KIPAC was inaugurated in 2003 as an independent laboratory of Stanford University to serve as a bridge between the disciplines of astrophysics, cosmology and particle physics. Its mission is to bring the resources of modern computational, experimental, observational and theoretical science to bear on our understanding of the universe at large."


Landsat Science: "The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey. Since 1972, Landsat satellites have collected information about Earth from space. This science, known as remote sensing, has matured with the Landsat Program."


Lunar and Planetary Institute: Click on the resources link to find scientific databases including images of craters and other planetary information. "The Lunar and Planetary Institute is a focus for academic participation in studies of the current state, evolution, and formation of the solar system. The Institute is housed in the USRA Center for Advanced Space Studies (CASS), located in Houston, Texas."


Lunar and Planetary Science : "The National Space Science Data Center (NSSDC) at Goddard Space Flight Center in Greenbelt, Maryland is NASA's primary deep archive site for planetary and lunar data obtained from spacecraft missions (both NASA and non-NASA), as well as the primary center for distribution of planetary data and images to educators and the general public."


Mars Surveyor 2001: This is NASA's website for viewing images taken by the Mars Odyssey spacecraft. The site provides an overview of Mars exploration as well as Odyssey's status and progress.


NASA Risk and Exploration Symposium: This 308-page document entitled Risk and Exploration: Earth, Sea and the Stars, was published by the NASA Admisnistrator's Symposium in 2005 for the purpose of engaging the public in an open discussion about the issue of risk-taking on an environmental level including the rick of space exploration. The PDF file is available in full-text free of charge.


National Aeronautics & Space Admistration: The official NASA home page. Contains speeches of NASA officials and information on technology and current projects. Use the contents search engine to explore the latest information on NASA.


Neutron Stars and Pulsars: Information from the Kavli Institute for Particle Astrohysics and Cosmology at Stanford University on the properties of neutron stars and pulsars.


Science News-NASA: "Simply and clearly-told stories about NASA science. Recently, the Science@NASA team joined forces with the Science Mission Directorate at NASA headquarters. Working together these two organizations are able to cover a broad range of NASA discoveries and develop "citizen science" opportunities for readers, while still producing old favorites such as Apollo Chronicles and "looking up" stories about backyard astronomy events." Searchable by keyword or year of new event.


Sloan Digital Sky Survey: "The SDSS is the most ambitious astronomical survey ever undertaken. When completed, it will provide detailed optical images covering more than a quarter of the sky, and a 3-dimensional map of about a million galaxies and quasars. As the survey progresses, the data are released to the scientific community and the general public in annual increments."


Solar Data Analysis Center: Located at NASA Goddard Space Flight Center, the SDAC provides an archive of the latest ground-and-space-based solar images plus access to space solar physics data. The Solar Dynamics Observatory (SDO) helps us to understand the Sun's influence on Earth and Near-Earth space by studying the solar atmosphere on small scales of space and time and in many wavelengths simultaneously.


Solar Monitor: Hosted at the Solar Physics Group, Trinity College Dublin and at NASA Goddard Space Flight Center's Solar Data Analysis Center (SDAC), the Solar Monitor site contains near-realtime and archived information on active regions and solar activity.


Solar System: This website, presented in lecture style, offers a very broad overview of the first semester of general astronomy (Astronomy 161), focusing on the Solar System. It is divided into sections of subjects ranging from properties of light to comets, and many pages contain graphics, tables of values, equations, text and links to worked exercises. Stars, Galaxies and Cosmology (Astronomy 162) provides the second semester and focuses on stars, galaxies and cosmology. Created by the Department of Physics and Astronomy at the University of Tennessee.


Solar System Dynamics: The California Institute of Technology, Jet Propulsion Laboratory features information related to Solar System Dynamics related to the orbits, physical characteristics, and discovery circumstances for most known natural bodies in orbit around our sun. This popular astronomy web site publishes the latest news in space flight and other hot topics on the milky way, black holes, and the solar system in general.


Space Environment Information Service: The National Institute of Information and Communications Technology offers links to solar images, solar activity chart, geomagnetic activity chart, real-time solar wind plot, plus information on the Magnetosphere and the Ionosphere; also included is a glossary of solar-terrestrial terms.


Space Science and Engineering Center: "SSEC is a research and development center with primary focus on geophysical research and technology to enhance understanding of the atmosphere of Earth, the other planets in our Solar System, and the cosmos. SSEC sometimes explore the universe from space and terrestrial-based telescopes, and probe other planets in our solar system, but more often we examine the Earth to gain information and insight into weather, climate, and other aspects of Earth's global environment."


Spaceweather: News and current conditions about the Sun-Earth environment, as well as information about meteor showers, solar flares, auroras, and near-Earth asteroids.


Stargazers to Starships: This "Book on the Web" covers elementary astronomy, Newtonian mechanics, the Sun and related physics and spaceflight. Also included are a Spanish translation, 46 lesson plans, a short but complete math course (algebra + trig + logarithms), teachers' guides, glossary, timelines, 419 answered questions by users (current tally), over 100 problems to solve, and more. The course is described in "Using Space to Teach Physics" in "The Physics Teacher", February 1999, p. 102.


Sun: The Sun is now in the quietest phase of its 11-year activity cycle, the solar minimum. The solar wind has also dropped to its lowest levels in 50 years. Scientists are unsure of the significance of this unusual calm, but are continually monitoring our closest star with an array of telescopes and satellites.This site provides some recent magnificent images of the Sun in more active times.


Sun-Climate Research: The Center for Sun-Climate Research and the National Space Institute at the Technical University of Denmark investigate the connection between solar activity and climatic changes on Earth. The NSI comprises the country's largest collected expertise in the scientific disciplines that play a major and documented role in the understanding of climate change both in geological and historical time, namely variations in solar activity.


Sun Earth Connection Coronal and Heliospheric Investigation: SECCHI is a suite of 5 scientific telescopes that will observe the solar corona and inner heliosphere from the surface of the Sun to the orbit of Earth. These unique observations will be made in stereo for NASA's Solar Terrestial Relations Observatory, STEREO.


University of California Observatories / Lick Observatory: "University of California Observatories/Lick Observatory conducts leading-edge research to answer the most profound questions in observational astronomy." Use the UC Astronomy & Astrophysics link to access links to other astronomical resources. This site also provides an index to other observatories.


Visible Earth: This site provides a catalog of NASA images and animations of our home planet.