Apparent Visual Magnitudes |
---|
Messier objects sorted by apparent visual magnitudes |
URL: http://bozo.lpl.arizona.edu/messier/dataMag.html |
Apparent Visual Magnitude and Absolute Visual Magnitude |
---|
An online resource to discuss the difference between these two concepts. |
URL: http://snoopy.gsfc.nasa.gov/~orfeus2/vismag.html |
The Astronomical Magnitude Scale |
---|
Historical use of and explanation of apparent visual magnitudes. |
URL: http://liftoff.msfc.nasa.gov/academy/universe/mag.html |
Presentation of Apparent Magnitude Scale, with Common Celestial Objects |
---|
An online resource to discuss apparent magnitude scale |
URL: http://cfa-www.harvard.edu/cfa/ps/icq/MagScale.html |
Sky Maps and Constellations |
---|
An online resource on sky maps and constellations |
URL: http://www.maa.mhn.de/Maps/Const/constS.html |
Constellations |
---|
Listing of all 88 constellations with links |
URL: http://www.seds.org/Maps/Const/constS.html |
Ancient Constellation Maps |
---|
Celestial cartography, with drawings of constellation figures. |
URL: http://www.maa.mhn.de/Maps/Const/constS.html |
Movie of Annular Eclipse |
---|
350K Mpg movie of an annular eclipse. |
URL: http://www.astro.indiana.edu/animations/eclipse.mpg |
Solar Eclipse Bulletins |
---|
Index to resources of the Solar Data Analysis Center |
URL: http://umbra.nascom.nasa.gov/sdac.html |
Cycle of the Moon |
---|
Tutorial on phases of the Moon, including quiz.me movie |
URL: http://www-astro.physics.uiowa.edu/~lam/teaching/moon/ |
History of Astronomy |
---|
Links to resourses for the history of astronomy. |
URL: http://www.astro.uni-bonn.de/~pbrosche/astoria.html#astr |
Ptolemy's Star Map |
---|
Exerpts of the astronomy of Ptolemy in the second century A.D. |
URL: http://metalab.unc.edu/expo/vatican.exhibit/exhibit/d-mathematics/Greek_astro.html |
Johannes Kepler and his Three Laws |
---|
Short history of Kepler and mathematical treatment of his Three Laws of Planetary Motion. |
URL: http://www.cvc.org/science/kepler.htm |
Kepler's Star |
---|
Historical map of Kepler's star (a nova) in the year 1604. |
URL: http://www.lhl.lib.mo.us/pubserv/hos/stars/kep__.htm |
People in Astronomy |
---|
Listing of people who have made contributions to astronomy. |
URL: http://www.hawastsoc.org/solar/eng/people.htm |
Women in Astronomy |
---|
Homepage of the Committee on the Status of Women in Astronomy |
URL: http://www.hawastsoc.org/solar/eng/people.htm |
Electromagnetic Spectrum |
---|
Tutorial on electromagnetic radiation and its relationship to temperature. |
URL: http://oposite.stsci.edu/pubinfo/education/amazing-space/light/star-light-science.html |
World's Largest Telescopes |
---|
Largest telescopes in the world with their characteristics and locations, with links to homepages |
URL: http://www.seds.org/billa/bigeyes.html |
Astronomical Observatories |
---|
Listings of major ground-based telescopes. |
URL: http://ranier.oact.hq.nasa.gov/Sensors_page/GroundObserv.html |
Telescopes |
---|
Listings of major ground-based telescopes and space telescopes |
URL: http://www.w3.org/Out-Of-Date/hypertext/DataSources/bySubject/astro/observatories.html |
Keck Observatory |
---|
activities and research with the largest optical telescope in the world on Mauna Kea, Hawaii. |
URL: http://www2.keck.hawaii.edu:3636/ |
Kitt Peak |
---|
HomePage of a telescope facility located in Arizona. |
URL: http://www.noao.edu/kpno/kpno.html |
Anglo-Australian Observatory |
---|
HomePage of a major telescope facility located in Australia |
URL: http://www.noao.edu/kpno/kpno.html |
Infrared Telescope Facility |
---|
The NASA Infrared Telescope Facility on Mauna Kea, Hawaii, including photos. |
URL: http://irtf.ifa.hawaii.edu/ |
National Radio Astronomical Observatory |
---|
HomePage of the organization that oversees the various radio telescopes, with links to each. |
URL: http://www.nrao.edu/ |
Hubble Space Telescope |
---|
HomePage of the organization that operates the Hubble Space Telescope, with links to photos, |
URL: http://www.stsci.edu/top.html |
Advanced X-ray Facility |
---|
Development of an X-ray satellite that will be launched in 03 December 1998. |
URL: http://asc.harvard.edu/ |
Space Infrared Telescope Facility |
---|
HomePage of the satellite-borne telescope that maps the sky in the infrared. |
URL: http://sirtf.jpl.nasa.gov/sirtf/home.html |
Compton Gamma Ray Observatory |
---|
HomePage of the satellite-borne telescope that maps the sky in the X-ray. |
URL: http://cossc.gsfc.nasa.gov/ |
Blackbody Curves |
---|
Electromagnetic energy and energy curves of stars related to their temperatures. |
URL: http://oposite.stsci.edu/pubinfo/education/amazing-space/light/star-light-science.html#stellar |
Stellar Spectra |
---|
Laboratory experiments offered by the Dept. of Physics, Gettysburg College, Gettysburg Pa. |
URL: http://www.gettysburg.edu/academics/physics/clea/speclab.html |
Skyview Maps |
---|
Virtual Observatory that generates images of any part of the sky. |
URL: http://skyview.gsfc.nasa.gov/skyview.html |
Flow of Energy out of Sun |
---|
Laboratory experiments offered by the Dept. of Physics, Gettysburg College, Gettysburg Pa. |
URL: http://www.gettysburg.edu/academics/physics/clea/sunlab.html |
Daily Sun Images and Space Weather |
---|
Images of solar surface on a daily basis, and forecast of auroral activities affecting Earth. |
URL: http://www.sel.noaa.gov/ |
Mees Solar Observatory |
---|
HomePage of solar observatory located on Maui, Hawaii. Provides current data on Sun. |
URL: http://www.solar.ifa.hawaii.edu/mees.html |
National Geophysical Data Center |
---|
Solar-terrestrial physics and links to organizations that provide information on space weather. |
URL: http://www.ngdc.noaa.gov/ |
Aurora Report |
---|
Photographs and background info on auroras as well as links to organizations that study them. |
URL: http://www.geo.mtu.edu/weather/aurora/ |
Solar Features and Satellite Missions |
---|
Links to features and characteristics of Sun, also satellite missions to study Sun from space. |
URL: http://wwwssl.msfc.nasa.gov/ssl/pad/solar/ |
SOHO Mission |
---|
HomePage of solar satellite (joint NASA-ESA project) currently providing important solar data. |
URL: http://sohowww.nascom.nasa.gov/ |
Ulysses Mission |
---|
NASA's HomePage for the Ulysses satellite that is currently orbiting Sun |
URL: http://ulysses.jpl.nasa.gov/ |
Inverse-Square Law |
---|
Large movie (440kb) demonstrating the inverse-square law of radiation and gravity. |
URL: http://zebu.uoregon.edu/textbook/inv.html |
Variable Stars |
---|
HomePage of American Association of Variable Star Observers, with links to information. |
URL: http://www.aavso.org/ |
Evolution of Star Clusters |
---|
Tutorial on evolution of star clusters as shown by plots of stars on H-R diagrams. |
URL: http://zebu.uoregon.edu/textbook/sc.html |
Absolute Visual Magnitude |
---|
Discussion of difference between apparent visual magnitude and absolute visual magnitude. |
URL: http://snoopy.gsfc.nasa.gov/~orfeus2/vismag.html |
Messier Objects |
---|
Historical sketch of Messier's work, and listing of Messier objects, text and photographs. |
URL: http://www.nerdnet.nl/~angelo/phoenix/messier/Messier.html |
Interstellar Medium |
---|
Text, photographs and audio narration of interstellar reddening and reflection nebulae. |
URL: http://zebu.uoregon.edu/textbook/ism.html |
Images of Star-Forming Regions |
---|
Astronomy Picture of the Day: Bok globules and their association with star formation. |
URL: http://antwrp.gsfc.nasa.gov/apod/ap951006.html |
Flow of Energy out of Sun |
---|
laboratory experiments offered by the Dept. of Physics, Gettysburg College, Gettysburg Pa. |
URL: http://www.gettysburg.edu/project/physics/clea/sunlab.html |
Proton-Proton Chain |
---|
Animation and text of the sequence of events responsible for the generation of energy in stars. |
URL: http://zebu.uoregon.edu/textbook/energygen.html |
Deaths of Stars |
---|
Tutorial on deaths of different mass stars, links to text material and occasional diagram. |
URL: http://www.physics.gmu.edu/classinfo/astr103/CourseNotes/ECText/ch18_txt.htm#18.3 |
Eclipsing Binary Stars |
---|
Laboratory experiments offered by the Dept. of Physics, Gettysburg College, Gettysburg Pa. |
URL: http://www.gettysburg.edu/academics/physics/clea/binstlab.html |
The Story of Supernova 1987A |
---|
Events surrounding the discovery and study of a supernova in the Magellanic Cloud galaxy. |
URL: http://zebu.uoregon.edu/~soper/StarDeath/sn1987a.html |
Radio Astronomy of Pulsars |
---|
Laboratory experiments offered by the Dept. of Physics, Gettysburg College, Gettysburg Pa. |
URL: http://www.gettysburg.edu/academics/physics/clea/plsrlab.html |
Animation of Pulsar |
---|
Large file (554kb) of mpg movie illustrating the appearance of a pulsar. |
URL: http://oposite.stsci.edu/pubinfo/mpeg/crabmov.mpg |
Falling into a Black Hole |
---|
Resource that portrays the behavior of matter close to a black hole, as well as events associated. |
URL: http://casasrv.colorado.edu/~ajsh/schw.shtml |
Virtual Trip to a Black Hole |
---|
Simulation of the appearance and behavior of objects in the vicinity of a black hole. |
URL: http://antwrp.gsfc.nasa.gov/htmltest/rjn_bht.html |
Survey |
---|
General description of components of our Galaxy |
URL: http://www.nerdnet.nl/~angelo/phoenix/messier/more/mw.html |
Motions of Stars |
---|
Animation (2.7MB download) of motions of stars in a galaxy. |
URL: http://www.astro.indiana.edu/animations/ |
Messier Objects |
---|
List of Messier objects, including links to photographs, questions and answers. |
URL: http://www.seds.org/messier/ |
Virtual Trip to a Black Hole |
---|
Simulation of the appearance and behavior of objects in the vicinity of a black hole |
URL: http://antwrp.gsfc.nasa.gov/htmltest/rjn_bht.html |
Galaxy Cluster |
---|
Animation (3.4MB download) of motions of galaxies in a cluster. |
URL: http://www.astro.indiana.edu/animations/ |
Images |
---|
Links to photographs of individual galaxies, listed by Messier number. |
URL: http://www.seds.org/messier/objects.html#galaxy |
Properties of M31 (Andromeda galaxy) |
---|
Mpeg movie (1.2MB) of properties and structure of M31. |
URL: http://zebu.uoregon.edu/textbook/galaxies.html |
Groups and Clusters of Galaxies |
---|
Listing of groups or clusters of galaxies containing at least two Messier objects. |
URL: http://bozo.lpl.arizona.edu/messier/g-group.html |
More Groups and Clusters of Galaxies |
---|
Links to information on specific groups and clusters |
URL: http://www.nerdnet.nl/~angelo/phoenix/messier/gal_clus.html |
Interacting Galaxies |
---|
Twelve pairs of interacting galaxies, with links to information about each. |
URL: http://crux.astr.ua.edu/white/pairs/individual.html |
Galaxy Catalog |
---|
A catalog of digital images of 113 nearby galaxies. |
URL: http://www.astro.princeton.edu/~frei/ |
Hubble Deep Field |
---|
Hubble Deep Field study, including high-resolution images. |
URL: http://oposite.stsci.edu/pubinfo/PR/96/01.html |
Quasars |
---|
QT movie (1.1MB) of events associated with energies with quasar. |
URL: http://oposite.stsci.edu/pubinfo/mpeg/quasar.mpg |
Timeline of the Universe |
---|
Timeline of important events in the evolution of the universe. |
URL: http://origins.jpl.nasa.gov/poster/poster.html |
Redshift Distances |
---|
Laboratory experiments offered by the Dept. of Physics, Gettysburg College, Gettysburg Pa. |
URL: http://www.gettysburg.edu/academics/physics/clea/hublab.html |
Big Bang Nucleosynthesis |
---|
Analysis of light element abundances in the universe as verification of Big Bang theory. |
URL: http://cfpa.berkeley.edu/darkmat/bbn.html |
Large-Scale Structure of Universe |
---|
Laboratory experiments offered by the Dept. of Physics, Gettysburg College, Gettysburg Pa. |
URL: http://www.gettysburg.edu/academics/physics/clea/univlab.html |
Dark Matter |
---|
The MACHO Project: A program to detect dark matter by microlensing, including results to date. |
URL: http://wwwmacho.anu.edu.au/ |
COBE |
---|
The Cosmic Background Explorer, satellite designed to detect radiation left over from Big Bang. |
URL: http://www.gsfc.nasa.gov/astro/cobe/cobe_home.html |
Origin of Structure in the Universe |
---|
The origin of structure in the universe and its relationship to the cosmic background radiation. |
URL: http://cobi.gsfc.nasa.gov/msam-ripples.html |
Model Simulation of Early Universe |
---|
Parallel computers attempting to model the early history of the universe and galaxies. |
URL: http://zeus.ncsa.uiuc.edu:8080/GC3_Home_Page.html |
Meteors |
---|
International Meteor Organization Home Page. |
URL: http://www.imo.net/ |
Meteors |
---|
American Meteor Society Home Page. |
URL: http://www.serve.com/meteors/ |
North American Meteor Network |
---|
Provides specific information on observing and submitting reports on meteor showers. |
URL: http://medicine.wustl.edu/~kronkg/namn.html |
Meteorobs |
---|
An email discussion group devoted to observing meteors and meteor showers. |
URL: http://www.tiac.net/users/lewkaren/meteorobs/ |
Views of the Solar System |
---|
Links to data and photographs of the planets. |
URL: http://www.hawastsoc.org/solar/eng/homepage.htm |
Formation of Solar System |
---|
List of the events during the history of the early solar system. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/origin.html |
Welcome to the Planets |
---|
Links to sites on the Web that contain information and photographs of the planets and satellites. |
URL: http://pds.jpl.nasa.gov./ |
General |
---|
Homepage of the National Space Science Data Center |
URL: http://nssdc.gsfc.nasa.gov/planetary/planetary_home.html |
3-D Tour of the Solar System |
---|
3-D images of selected objects in the solar system. 3-D glasses are required for viewing. |
URL: http://cass.jsc.nasa.gov/research/stereo_atlas/HTDOCS/WELCOME.HTM |
ExtraSolar Planets |
---|
research related to the search for planets around other stars, with links to sites. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/other.html |
Earth and Moon Viewer |
---|
User views either Moon or Earth from imaginary position above Earth, or of backside of Moon. |
URL: http://www.fourmilab.ch/earthview/vplanet.html |
Earth Survey |
---|
Detailed description of Earth as a planet. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/earth.html |
Plate Tectonics |
---|
Earth's Geology, Diagrams and text. |
URL: http://observe.ivv.nasa.gov/nasa/earth/tectonics/Tectonics1.html |
Moon Survey |
---|
Detailed description of Moon as a satellite, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/luna.html |
Lunar and Planetary Institute |
---|
Reports on research conducted about Moon and planets and Links to lunar research. |
URL: http://cass.jsc.nasa.gov/lpi.html |
Radar Studies of Rotation of Mercury |
---|
Laboratory experiments offered by the Dept. of Physics, Gettysburg College, Gettysburg Pa.. |
URL: http://www.gettysburg.edu/academics/physics/clea/merlab.html |
Mercury Survey |
---|
Description of Mercury as a planet, with links to sites covering related. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/mercury.html |
Venus Survey |
---|
Description of Venus as a planet, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/venus.html |
Magellan Mission |
---|
Survey of mission to Venus to conduct radar-imaging of planet. |
URL: http://www.jpl.nasa.gov/magellan/ |
Magellan Images |
---|
Access to images taken by Magellan satellite by reference number. |
URL: http://delcano.mit.edu/cgi-bin/midr-query |
Venus Surface |
---|
Discussion of surface features on Venus imaged by various satellites. |
URL: http://www.eps.mcgill.ca/~bud/craters/FaceOfVenus.html |
Mars Survey |
---|
Description of Mars as a planet, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/mars.html |
Mars Atlas |
---|
Explore surface features on Mars by interacting with an atlas of the Martian surface. |
URL: http://www-pdsimage.wr.usgs.gov/PDS/public/mapmaker/ |
Exploration of Mars |
---|
Links to sites relating to past, present and future investigations of Mars. |
URL: http://www.mae.ncsu.edu/mmrc/index.html |
Center for Mars Exploration |
---|
NASA-Ames links to the results of past missions to Mars, and information on future missions. |
URL: http://cmex-www.arc.nasa.gov/ |
Global Surveyor Project |
---|
The status of the Global Surveyor satellite that is currently imaging Mars. |
URL: http://mars.jpl.nasa.gov/mgs/ |
Martian Meteorite |
---|
Discussion of meteorite ALH 84001. |
URL: http://cass.jsc.nasa.gov/lpi/meteorites/mars_meteorite.html |
Jupiter Survey |
---|
Jupiter as a planet, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/jupiter.html |
Galileo Mission |
---|
Discussion of and links to photographs taken by the Galileo satellite at Jupiter. |
URL: http://www.jpl.nasa.gov/galileo/sepo/ |
Shoemaker-Levy 9 Impact on Jupiter |
---|
Photographs taken during the collision of comet Shoemaker- Levy 9 with Jupiter in 1995. |
URL: http://www.jpl.nasa.gov/sl9/ |
Saturn Survey |
---|
Description of Saturn as a planet, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/saturn.html |
NASA Planetary Rings |
---|
Links to sites containing detailed studies of rings of the four Jovian satellites. |
URL: http://ringside.arc.nasa.gov/ |
Saturn Ring-Plane Crossing |
---|
Research conducted during Earth's ring-crossing of Saturn in 1994-95. |
URL: http://ringside.arc.nasa.gov/www/rpx/rpx.html#viewer |
Cassini Mission |
---|
HomePage of JPL's Cassini satellite to Saturn and its satellite Titan. |
URL: http://www.jpl.nasa.gov/cassini/ |
Uranus Survey |
---|
Neptune as a planet, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/uranus.html |
Neptune Survey |
---|
Neptune as a planet, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/neptune.html |
Pluto Survey |
---|
Pluto as a planet, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/pluto.html |
Project Pluto |
---|
Information on proposed mission to visit Pluto. |
URL: http://www.projectpluto.com/ |
Meteorite Survey |
---|
Description of meteorites, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/meteorites.html |
Meteorites in Antarctica |
---|
Meteorites found in Antarctica, and what research tells us about the origin of the solar system. |
URL: http://www-curator.jsc.nasa.gov/curator/antmet/antmet.htm |
Minor Planet Center |
---|
Smithsonian Astrophysical Observatory's Minor Planet Center. how to report asteroids. |
URL: http://cfa-www.harvard.edu/cfa/ps/mpc.html |
Terrestrial Impact Craters |
---|
Discussion of known and suspected impact craters on Earth, and photographs and maps of sites |
URL: http://cass.jsc.nasa.gov/publications/slidesets/impacts.html |
Comet Survey |
---|
Description of comets, with links to sites covering related topics. |
URL: http://seds.lpl.arizona.edu/nineplanets/nineplanets/comets.html |
Comet Collisions with Earth |
---|
Discussion of impact that occurred on the Yucatan Peninsula in Mexico. |
URL: http://antwrp.gsfc.nasa.gov/cgi-bin/cossc/apod_search?chicxulub |
Comet Hale-Bopp |
---|
JPL's HomePage on Comet Hale-Bopp, including links to photographs and sky maps. |
URL: http://www.jpl.nasa.gov/comet/index.html |
Meteor Showers |
---|
Information on interesting fireballs, historical accounts, and radio meteor reports. |
URL: http://medicine.wustl.edu/~kronkg/meteor_shower.html |
Meteor Shower Calendar |
---|
Calendar of major and meteor showers, including phase of moon. |
URL: http://medicine.wustl.edu/~kronkg/calendar.html |
SETI Institute |
---|
The organization program that searches for signals from distant civilizations. |
URL: http://www.seti-inst.edu/ |
The SETI League |
---|
A non-profit, educational and scientific organization searching for extra-terrestrial intelligence. |
URL: http://www.setileague.org/ |
Space Settlements |
---|
NASA's HomePage on orbital space settlements. |
URL: http://science.nas.nasa.gov/Services/Education/SpaceSettlement/ |
Design of Space Stations |
---|
Links to criteria used in construction of space stations, based upon 1975 study. |
URL: http://science.nas.nasa.gov/Services/Education/SpaceSettlement/75SummerStudy/Table_of_Contents1.html |