- Hubble Space Telescope (HubbleSite). Beautiful images, discoveries, history, and more.
- SFA Start Charts. Star charts (pdf) designed to work anywhere on Earth; with instructions.
Your Sky. Enter Earth coordinates and time (optional) to get
a custom star chart. You can zoom in or out, and pan in any
direction of your chart. Also allows you to see plots for
comets and other bodies. The site has additional pages for
locating and viewing: planets, the Moon, deep sky objects,
stars, constellations, and star groups; radiants of meteor
showers, and many other items.
- Moon Phase Calendar. Visually see the entire month (any month).
- Sunrise Sunset Calendars. Enter location.
- Five Millennium Catalog of Solar Eclipses (NASA). Covers 2000 BCE to 3000 CE. Maps and coordinates.
- Astronomy page From the Weather Underground
- Hawaiian Astronomical Society. Very good resources for Solar System, stars, and other charts, photographs, and materials.
- SAO Telescope Data Center (Smithsonian Astrophysical Observatory at Harvard).
- SAO Star Catalog Entire SAO catalog of 258,996 stars, including B1950 positions, proper motions, magnitudes, and, usually, spectral types in a locally-developed binary format described below. While the SAO catalog is more or less complete to V=9, with 4,503 stars fainter than V=10, the PPM catalog is fairly complete to V=9.5, with 102,672 stars fainter than V=10 and 22,395 stars fainter than V=11.
- SFA Observatory Links (Stephen F. Austin Univ.). All aspects of astrophysics/astronomy-research.
- Computer Operated Telescopes. What do you want to learn?
- POV-Ray Planet Rendering (Dan Bruton, SFA Univ.). See high-quality renderings of the planets in correct proportion to each other, as well as texture maps, surface, and other views. Includes "tenth planet" Xena.
Earthquakes, Volcanoes, & Natural Disasters
- Hurricane Katrina (August/September 2005). The worst natural disaster in the United States is documented here, including: coverage of the disaster, relief, science and economic studies, and continuing efforts to renew the Gulf Coast region as well as plans to mitigate future disasters. (Highly recognized page).
- Indian Ocean Tsunami Disaster (December 26, 2004). Includes historic and currrent resources for ongoing study. This page won a number of awards and honors for its content.
St. Helens 20th Anniversary Commemorative Exhibit.
Archive of a resource that I created. Covers the history of
the volcano, with emphasis on the 1980 eruption,
and many stable links to data, sources, and images
of the volcano and the Cascade Range. Covers current activity as well.
- Earthquakes in the World (USGS Earthquake Hazards Program). See the last seven days activities. Also includes regional maps and lists, such as:
Offers data and information on volcanoes and seismic-related