Astronomy and Astrophysics

Reflections on a Mote of Dust

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Astronomy Links and Primary Resources

• Airboy's Astronomy Links
• Aladin Sky Atlas
• Asantha Cooray's Links
• AstroEd Astronomy Education Resources
• Astronomica (Education Through Technology)
• Astronomy and Astrophysics Links (Ka Chun Yu -- CASA)
• Astronomy Interactive Network
• Astronomy Magazine
• The Astronomy Net
• Astronomy Notes Elementary Astronomy (Nick Strobel)
• Astronomy Picture of the Day
• AstroWeb (alt) (alt)
• Jeff Bondono's Astronomy Page ( old) (old) ( older)
• CfA's Astronomy Links
• CfPA's Education Page (including astrophysics glossary)
• Cosmos (KBCC)
• Cosmic Mystery Tour
• Cyber Space
• Encyclopedia Astronautica (Mark Wade) ( old) (History of Spaceflight)
• ESO Outreach Programs
• Expanding Universe (Amateur Astronomy Classified Search Tool) (alt)
• FermiLab's Astrophysics Links
• Fundamental Ephemeris Computations (Book by P. J. Heafner)
• Google StarViewer
• Guide to Online Astronomical Data (as of September 1994)
• Andrew Hamilton's Cosmology and Relativity Links (UC - Boulder)
• Imagine the Universe! (HEASARC/GSFC)
• Science and Mathematics Education Resources (HPCC)
• Hands-On Universe
• Headlines (NASA)
• HumanSpace
• Maris Multimedia Web Directories
• MICA (Multiyear Interactive Computer Almanac) ( WebMICA)
• Mike Guidry's Obsessive Links
• ADS - NASA Astrophysics Data System (alt) (worldwide mirror) ( Abstract Service) ( Article Service) (myADS)
• The Nine Planets ( SEDS Mirror)
• NSF Digital Sky
• Palomar Digitized Sky Survey
• Science@NASA
• Skymorph (Goddard Space Flight Center)
• SpaceScience.com (NASA) (Sister Site to Science@NASA) (alt)
• Space.Com
• Space Daily
• Space Educators' Handbook
• Spaceflight Now
• SpaceRef
• SpaceViews Space News Online
• Hubble Space Telescope Public Information
• Students for the Exploration and Development of Space (SEDS)
• Sky & Telescope (SkyTonight)
• AmeriTech Space News Center (Adler Planetarium)
• StarDate (old)
• Shadow & Substance [popular astronomy beautifully]
• Spacelink (NASA Resources for Educators)
• The Universe Today (space news from around the Internet, updated every weekday) [space news from around the Internet, updated every weekday]
• Windows to the Universe (old)
• Eric Weisstein's World of Astronomy

Data Archives and Databases

• the Astronomical Server URL (proposal)
  
  
• Astrophysical Virtual Observatory (AVO)
• International Virtual Observatory Alliance (IVOA)
  
  
• NASA Astronomical Data Center (ADC) (Science Data) ( ADC Data Archives ftp)
• ADS - NASA Astrophysics Data System
• Astronomical Applications Department (USNO Data Services)
• Astronomical Data Centre (ADC)
• AstroGravS (Astrophysical Gravitational Wave Sources Archive)
• Automated Plate Scanner (UMN APS)
• catalog descriptions (planetarium software)
• CDS
• Digitized Sky Survey (DSS) (alt) (alt) (alt)
• ESO/ST_ECF Science Archive Facility (ESO/ECF Generic Catalog Server) (Hipparcos/Tycho*/VLT et al.) (SkyCat)
• HEASARC Data Archive
• Infrared Science Archive
• MICA (Multiyear Interactive Computer Almanac) ( WebMICA)
• National Virtual Observatory
• NED (NASA/CalTech Extragalactic Database at the IPAC Infrared Processing and Analysis Center)
• Wolf Steinicke's NGC/IC Database
• NRAO VLA Sky Survey
• NSF Digital Sky
• NStars (nearby stars) (NASA)
• Object Position, Coordinate, and Separation Calculator (HEASARC)
• Palomar Digitized Sky Survey
• Simbad Astronomical Database
• Skymorph (Goddard Space Flight Center)
• Skyview Virtual Observatory
• VizieR (catalogs)
• Wikisky

Miscellaneous News & Reference

• AbsoluteAstronomy.com
• Astrobiology Magazine
• The Astrobiology Web
• Astronomical Data Center (ADC - NASA GSFC)
• Astronomical Pronunciation Guide I II (Astroleague)
• The Astrophysical Journal (ApJ)
• Astro Trek 21 — A Trek Through Astrophysics
• ADC Quick Reference Pages
• Astronomy for Everyone (#sciastro amateur astronomy IRC)
• Astronomy Magazine
• AstronomyNook
• Astronomy Resources
• Astronomical Spectroscopy (Guidry)
• The History of Astronomical Spectroscopy
• CASS Astronomy Tutorial (UCSD)
• Astrophysics Source Code Library
• Athena (Earth and Space Science for K-12)
• Bad Astronomy (Phil Plait)
• CAP — Communicating Astronomy to the Publlic
• Catalog of Infrared Observations (CIO)
• The Constellations (John Wallin - GMU)
• Constellations and their Stars (Chris Dolan of U.W. - Madison)
• Constellations Index (Haworth)
• The Shape of Our Night Sky - Constellation Info
• Constellation Quiz (Mt. Wilson)
• Cool Cosmos [including Ask an Astronomer — on video!]
• SGI's CyberAstronomy (chalkhills.org)
• Curious About Astronomy? Ask an Astronomer
• Dalton Astronomy (Tutorial)
• Dr. Strauss: Astronomy
• Digitized Palomar Sky Survey (DPOSS)
• Eric's Treasure Trove of Astronomy
• Farmer's Almanac Astronomy
• Frequently Asked Astronomy and Physics Questions
• Handbook of Space Astronomy and Astrophysics
• Digitized Sky Survey (DSS) (Retrieval System) ( STSci Catalogs & Surveys Branch)
• General Astronomy Information (RGO)
• Basic Geometry for Astronomy
• Glossary of Astrophysical Terms (National Solar Observatory/Sacramento Peak)
• High-Energy Astrophysics Picture of the Week
• International Astronomical Union Circulars
• Infrared Astronomy (IPAC)
• iUniverse Interactive Universe (VRML) ( Virtual Universe: Milky Way)
• KidsAstronomy
• Kids N' Space
• Leicester University's Guide to Space and Astronomy
• Life in the Universe
• The Magnificent Cosmos (Scientific American Special Issue)
• Astronomy Mnemonics
• Nauts
• Observatorium (NASA)
• Photometry
• Physics Educational Materials (Hallym University)
• Positional Astronomy
• Frequently Asked Questions About Radio Astronomy (NRAO)
• Radio Telescopes — Image Gallery
• Russian Space Web
• Science Education Gateway On-Line Activities (alt)
• Science Fiction Stories With Good Astronomy & Physics (Andrew Fraknoi)
• Science On-Line Resource Toolkits
• Sea and Sky: The Sky (The Sky Lab — Java Applets)
• Simbad Astronomical Database
• SkyView Virtual Observatory (NASA)
• Space Educator's Handbook [JSFC]
• SpaceFlight Now
• Space-Guy
• A Space Library
• Spazce-Video.info
• The Spectrography Bookmark
• Forum for Amateur AstroSpectroscopy
• Spectroscopy — a practical beginner's guide
• Squiggly Lines: Learning from Light
• Star Charts & Moon Stations
• The Astronomical Unit (Stephen Tonkin's Astronomy Tutorials) ( old)
• Suite 101 Astronomy Articles
• Summary of Important Physical Concepts (Astronomy 114)
• Tutorials in Astronomy (College of St. Benedict/St. John's University)
• Two Micron All-Sky Survey (2MASS) (UMASS) ( CalTech) (Gallery)
• USNO Data Services (Astronomical Applications)
• USNO Time Services Department
• UW WWW Astronomy Tools Page
• Violence in the Cosmos (Mike Guidry's Introduction to Astronomy)
• A WormHole in the Cosmos
• XRayTelescope.com X-Ray Astronomy Reference (NASA)
• Zarya — Soviet and Russion Space Programs

Online Course Resources and Texts & Astronomy Education

• Foundations of Cosmological Thought (J.C. Evans)
• Introduction to Astronomy (Suvendra Nath Dutta, Ohio University)
• From Stargazers to Starships (Book-on-the-web by David P. Stern)
• Stars & Galaxies: A HyperText Course by Richard McCray
  
  
• Astronomy 001 (Steve Myers - Penn)
• Astronomy 100 (U. Mass - Amherst)
• Astronomy 201 (Cornell)
• Astronomy 263/264 (Purdue)
• Astronomy A-17 Lecture Notebook (Harvard 1996)
• Astronomy GE 150 (Boston College - Andrew Lazarewicz))
• Astronomy in the Physical Universe (U of O Physics 108 Online Text)
• Astronomy with a Stick (AWS)
• Astronomy: the Cosmic Journey Web Edition (Hartmann and Impey) (alt)
• Joshua Barnes
• Bernstein 101
• Depoy (including galactic and extragalactic astronomy)
• Descriptive Astronomy
• Elementary Astronomy (Online Notes — Nick Strobel) ( old)
• Elementary Astrophysics (Astronomy 142 - University of Rochester) (including lab manual)
• From Stargazers to Starships [online textbook]
• Exploration of the Earth's Magnetosphere [online textbook]
• Intro to Astronomy Lecture Notes (Scott Anderson - Emory)
• Introductory Level Astronomy Supplemental Pages (University of Maryland)
• Physics 308 — Galaxies, Quasars, and Cosmology (Mike Merrifield, Southampton University)
• Physics 2023 ("Observational & Computational Astrophysics") Lecture Notes
• Positional Astronomy
• Barbara Ryden
  
  
• Astronomy Center [educator's resource center — comPadre]
• Astronomy Diagnostics Test
• The Astronomy Educator (new Ontario curriculum)
• Contemporary Activities in Astronomy (Hoff and Wilkerson)
• Educational Resources in Astronomy and Planetary Sciences (inc. Activities)
• The Electronic Universe (including the Astronomy Hypertextbook)
• Explorations: An Introduction to Astronomy (Arny)
• lodestar: the Astronomy Education and Research Project of the State of New Mexico
• Paper Plate Education
• PC's in Space (Free educational software)
• Starlinks (In Quest of the Universe, 2nd Ed.)
• Swinburne Astronomy
• Voyages Through the Universe (Fraknoi, Morrison, and Wolff) (old)
  
  
• GenEdWeb Resources
• Joe Heafner
• TeacherLINK
• The Universe in the Classroom (Archives) (new?) (Astronomical Society of the Pacific)
  
  
• Project Star
• Rainbow Symphony

Mailing Lists, Usenet Groups, and Discussion Boards

• Astronomy & Physics Discussion Board
• sci.astro FAQ
• Talking Telescopes (old)

Institutions, Organizations, and Observatories

• The American Association of Amateur Astronomers
• American Association of Variable Star Observers (AAVSO)
• American Astronomical Society (AAS) ( alt)
• American Meteor Society (alt)
• AMOS Air Force Research Laboratory
• Anglo-Australian Observatory
• Armagh Observatory
• The Astronomer Group
• Astronomical Institutes of the University of Bonn
• The Astronomical League [of Astronomy Clubs and Organizations]
• Astronomical Society of Australia
• Astronomical Society of New South Wales
• Astronomical Society of the Pacific (alt) ( The Universe in the Classroom)
• Astrophysics Data Facility (GSFC)
• Astroweb Consortium
• AURA
• Automated Astrophysical Site-Testing Observatory (AASTO)
• Automated Telescopes on the Internet
• Big Ear Observatory
• Bradford Robotic Telescope (alt)
• Cambridge Astronomy
• Canadian Institute for Theoretical Astrophysics (CITA)
• Center for Astrophysics and Space Astronomy (UC)
• Center for Astrophysics and Space Sciences (CASS/UCSD)
• Center for Gravitational Physics and Astronomy (Penn State)
• Center for Particle Astrophysics (CfPA - Berkeley) (alt)
• Center for Science Education (UC Berkeley Space Sciences Laboratory)
• Central Bureau for Astronomical Telegrams
• Chandra X-Ray Observatory Center
• Chandra (NASA)
• CLEA Project (Astronomy Laboratory Exercises)
• Deep Space Network (DSN) (DSN Radio Astronomy)
• The Digital Sky Project (Virtual Observatories of the Future)
• European Southern Observatory (ESO) (alt)
• European Space Agency (ESA) (alt) (ESA Space Science Home)
• Fairborn Observatory
• Gamma-Ray Large Area Telescope (GLAST)
• Gemini Observatory Image Gallery
• Harvard-Smithsonian Center for Astrophysics (CfA)
• Hawaiian Astronomical Society
• Hayden Planetarium Project Scientific Visualization Laboratory
• Haystack (Radio Telescope)
• High Energy Astrophysics Science Archive Research Center (HEASARC/GSFC) (alt) ( Data Archive)
• HiRes Fly's Eye Cosmic Ray Observatory
• HPCC Earth and Space Sciences Project at the University of Washington
• HubbleSite
• Infrared Processing and Analysis Center (IPAC)
• Infrared Space Observatory (ISO)
• Institute for Solar Physics
• International Astronomical Union (IAU) ( IAU Circulars) ( Central Bureau for Astronomical Telegrams (CBAT))
• International Dark-Sky Association
• International Earth Rotation Service
• International Lunar Exploration Working Group
• International Meteor Organization (IMO)
• International Planetarium Society (The Planetarian)
• ISS Amateur Telescope
• W.M. Keck Observatory
• Keck (Caltech mirror)
• Kopernik Space Education Center
• Laboratory for High Energy Astrophysics (LHEA)
• Lick Observatory
• LIGO (LA) (WA)
• Lowell Observatory
• Lunar and Planetary Institute
• Mauna Kea Observatories
• Mac Planck Institute fuer Astronomie
• Max Planck Institute for Extraterrestrial Physics (X-Ray Astronomy inc. ROSAT)
• MicroObservatory
• Minor Planet Center (MPC) ( Minor Planet & Comet Ephemeris Service)
• Mount Wilson Observatory
• NASA Links
• National Astronomical Observatory of Japan
• National Astronomy and Ionosphere Center (Arecibo)
• National Deep Sky Observers Society (NDSOS)
• National Optical Astronomy Observatories
• National Radio Astronomy Observatory
• National Solar Observatory (also at NSO and NSO (Sacramento Peak)) (alt)
• National Space Science Data Center
• National Virtual Observatory (SkyQuery)
• Night Sky Live Global Observatory
• Night Sky Live (NSL/CONCAM)
• The NGC/IC Project (Wolf Steinicke's NGC/IC Database)
• OneCosmos
• Mt. Palomar
• Particle Physics and Astronomy Research Council (PPARC)
• The Planetary Society
• Planetary Studies Foundation
• Remote and Robotic Telescopes
• ROBOsky Remote Presence Science
• Royal Greenwich Observatory (alt)
• Russian Space Science Internet
• SciAstro.net (Amateur Astronomers)
• SETI@Home (Boinc!)
• SETI Institute (alt)
• The SETI League (alt)
• SetiQuest
• Sloan Digital Sky Survey
• Smithsonian Astrophysical Observatory (SAO)
• Society for Popular Astronomy
• Solar and Heliospheric Observatory (SOHO)
• South African Astronomical Observatory (South African Large Telescope (SALT))
• Southern-X Observatory
• Space Science Institute (SSI)
• Students for the Exploration and Development of Space (SEDS)
• Space Infrared Telescope Facility (SIRTF)
• Space Studies Board (National Academy of Sciences)
• Space Telescope Science Institute (STScI)
• Subaru Telescope (NAOJ)
• Sudbury Neutrino Observatory
• 2MASS
• University of Alabama
• University of Arizona
• University of Texas - Austin
• US Naval Observatory (USNO)
• Very Large Telescope (ESO)
• Very Long Baseline Array (VLBA)
• Homepages of VLBI Institutes
• Very Long Baseline Interferometry in Europe
• Very Small Array
• Viewing the Violent Universe (Compton Gamma-Ray Observatory)
• XMM-Newton
• Yerkes Observatory
• Youth in Astronomy.org (Student Telescope Network)
• X-Ray Multi-Mirror Satellite (XMM)
  
  
• AstroPlace 2.0 Observatories Listings
• MilkyWeb Observatory Guide

Clubs

• Astronomy Mall Directory
• Sky & Telescope Directory

Cosmology

• Advanced X-Ray Astrophysics Facility (AXAF) Science Center
• The Age of the Universe
• Anthropic Principle: Smolin vs. Suskind
• anthropic-principle.com [Nick Bostrom]
• Astronomy and Cosmology
• Big Bang Cosmology Primer ( old)
• Big Bang Science (exploring the origins of matter)
• Boomerang Home Page
• Cambridge Cosmology
• CASS Astronomy Tutorial: Cosmology
• CMB Astrophysics Research Program
• COBE Home (alt)
• COBE Educational Resources
• COBE Microwave Background Maps
• Cosmic Evolution [Eric Chaisson — Wright Center]
• Cosmic Microwave Background (CMB) Astrophysics Research Program ( George Smoot's Astrophysics Research Program)
• The Cosmic Microwave Background (UBC's Doug Scott) (CMB Faq)
• Color of the Universe
• Cosmic Structure Formation Gallery (MIT)
• Cosmic Journey: A History of Scientific Cosmology [AIP]
• The Cosmological Constant (Eli Michael UC Boulder)
• Cosmological Issues for Theorists
• Primer on Cosmology and on Computer Models in Cosmology (NCSA)
• Cosmology for Beginners (John Gribbin)
• Cosmology Key Terms
• Cosmology: A Research Briefing (National Academy of Science)
• Curious About Astronomy? Cosmology
• Dark Energy and the Accelerating Universe (SNAP — Supernova Acceleration Probe)
• Dark Energy Resource Book
• Dark Matter Tools Workgroup
• Dark Matter Tutorial (CfPA Berkeley)
• Dark Matter Tutorial
• Dark Matter (Essay)
• Fly-Through of the 2dF Galaxy RedShift Survey
• FUSE (Far Ultraviolet Spectroscopic Explorer) ( FUSE Animations Page)
• Grand Challenge Cosmology Consortium
• Andrew Hamilton's Cosmology and Relativity Links (UC - Boulder)
• High-Z Supernova Search
• History of the Universe
• The Hubble Academy (NASA Amazing Space)
• HubbleConstant.Com (Science@NASA)
• Hubble Ultra-Deep Field
• Measuring the Hubble Constant
• Hubble's Law Lab Exercise (CLEA)
• The Hubble Deep Field (STScI)
• Hubble Deep Field North Photometric Redshifts (by galaxy)
• The Hubble Deep Field South (STScI)
• Hubble Volume Simulations
• An Introduction to the Cosmic Microwave Background (Wayne Hu)
• Introduction to Cosmology (WMAP)
• LAMBDA — Legacy Archive for Microwave Background Data Analysis
• Logarithmic Maps of the Universe
• The Magnificent Cosmos (Scientific American Special Issue)
• WMAP
• MAXIMA
• Ned Wright's Cosmology and Relativity FAQs and Tutorials (UCLA)
• Origins of the Universe (NASA Origins Program)
• Smoot Group (Astrophysics and Cosmology)
• Spacetime Wrinkles (Numerical Relativity at NCSA)
• Supernova Cosmology Project (SCP) (High Redshift Supernova Search) (alt)
• What is Theoretical Cosmology? (Wright and Cohn) (old)
• WMAP ( Cosmology 101) (WMAP Data & Software (Lambda))
• The Universe Adventure
• An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time
• Astronomy 162 (Stars, Galaxies, and Cosmology - Mike Guidry)
• Astronomy 3033 at FSU (Cosmology - Harrison Prosper S98)
• Structure and Evolution of the Universe (NASA Research Theme/GSFC)
• Two-Degree Field Galaxy Survey (2dF)
• U2 CMB Anisotropy Experiment
• WMAP
  
  
• Rocky Kolb's Home Page
  
  
• Cosmic Mystery Tour
• History of the Universe
• A Review of the Unverse
• A View from the Back of the Envelope
  
  
• COBE
• BOOMERANG
• MAXIMA
• DASI
• CAT
• ATCA
• CBI
• VSA
• WMAP (MAP)

The Deep Universe

• APM Galaxy Survey Page
• Atlas of Peculiar Galaxies [Arp]
• Atlas of the Universe
• An Atlas of the Universe ( old) (This is REALLY cool!)
• An Atlas of DRAGNs (3CRR sample)
• Joshua Barnes (Simulations of Stellar & Galactic Mergers)
• MSSL Beginner's Guide to AGN (Active Galactic Nuclei)
• Bennett Catalog
• The Catalog of Interacting Galaxies
• Classifying Galaxies [Interactive Lesson - Hastings]
• Compact Groups of Galaxies
• Copenhagen University Observatory Large Scale Structure page
• The Cosmic Gamma Ray Burst Page (NASA)
• Cruising the Virgo Cluster (Limber)
• Distribution of Galaxies and Galaxy Clusters (Andrey Kravtsov)
• Distribution of galaxies and galaxy clusters in the local supercluster (Brent Tully and Michelle Mercer)
• Formation and Evolution of Galaxies SKA — The Square Kilometre Array
• Galactic Collider (Java Applet)
• Galaxies
• Galaxies - Precis (UA)
• Galaxies, Quasars, and Cosmology (Physics 308 — Mike Merrifield, Southampton University)
• The Galaxy Catalog (Zsolt Frei)
• Galaxy Cluster Mug Shots ( Overlapping pairs of galaxies)
• Galaxies and You (IMSA Astrophysics Visualization)
• Gamma Ray Burst map (BATSE) (Gamma Ray Astrophysics at MSFC)
• GEMS Deep-Feild Mosaic) (GEMS Skywalker) (Galaxy Evolution from Morphology and Spectral energy distributions)
• Gravitational Lensing
• Gravitational Lensing
• Gravitational Lensing Simulations (Peter Newbury)
• Gravitational Lensing Tutorial
• Gravitational Lensing by Galaxy Clusters
• Hawaiian Astronomical Society Deepsky Atlas (alt)
• Hubble Deep Field
• Understanding the Hubble Sequence of Galaxies (HPCC)
• Level 5: A Knowledgebase for Extragalactic Astronomy & Cosmology (alt)
• Large-scale distribution of galaxies in the LEDA database
• Cosmology of the Local Group
• Local Group Survey
• The Local Universe in 3D
• Las Campanas Redshift Survey (LCRS)
• Lyman-alpha systems and Cosmology
• Logarithmic Maps of the Universe
• David Malin (A-AO)
• The Messier Index
• Messier Objects Catalog at SEDS
• The Messier-Plus Page
• Multiwavelength Atlas of Galaxies
• The Multiwavelength Messier Museum — An Astronomical Gallery and Tutorial
• National Space Science Data Center Gallery
• NED (NASA/CalTech Extragalactic Database at the IPAC Infrared Processing and Analysis Center)
• Powers of Two (3-D Movies of Local Lareg Scale Structure)
• Structure and Dynamics of Elliptical Galaxies
• Bright Supernovae
• 2dF Galaxy Redshift Survey (AAO) (inc. a 3-D Movie of Flying Through the Universe!)
• UA GIF Farm
• Universe Within 15 Billion Light Years
• netastrocatalog —Internet Amateur Astronomers Catalog
• Wandering Through the Lyman-alpha Forest (NCSA/LCA)
  
  
• Determining the Extragalactic Distance Scale (NWU Web Lab)
• Galaxies (Astronomy 123 by Davison Soper - U of O)

The Galaxy

• Exoplanets (old)
• The Extrasolar Planet Catalog (alt) // The Extrasolar Planet Encyclopedia
• Extrasolar Planet Search
• Extrasolar Planet Search (Butler/Marcy group at SFSU) ( old)
• Extrasolar Planet Search (Sky Maps!) ( old)
• Extrasolar Visions — Guide to Extrasolar Planets
• Hunt for Alien Worlds (NOVA Online)
• transitsearch
  
  
• Alpha-Centauri ( old)
• The Black Hole in the Galactic Center
• Canadian Galactic Plane Survey
• A General Catalog of Herbig-Haro (HH) Objects
• Hidden Galaxies
• Globular Clusters Homepage
• The Milky Way's Globular Clusters
• 3-D Mapping of the Local Interstellar Medium (LISM)
• Multiwavelength Milky Way
• Interstellar Communication
• Interstellar Gas (UNH)
• The Interstellar Medium — an online tutorial
• Journey Through teh Galaxy
• Canadian Galactic Plane Survey (of the interstellar medium)
• The Milky Way (Royal Greenwhich Observatory)
• The Milky Way (Leicester University)
• The Nearest Stars
• The Orion Nebula Project (Hayden Planetarium) (3-D Movie!)
• The Search for Extrasolar Planets: A Brief History
• PLANET Homepage (extrasolar planet search via microlensing)
• HST Images of Planetary Nebulae
• Planetary Nebulae
• Planetary Nebula Sampler
• Planetary Systems
• The Pleiades
• The Pleiades nebula Cocktail
• Research Consortium on Nearby Stars (RECONS)
• Movies of Star Formation in the LMC
• Nebulæ Fuzzy Patches in Space [PPPL]
• Southern H-Alph Sky Survey Atlas (SHASSA)
• SAI Supernova Catalog
• Introduction to Star Formation (Ka Chun Yu)
• Star Information Miscellany
• Star of the Week [Jim Kaler]
• Stellar Motion at the Galactic Center/Galactic Center Research
• Two Micron All-Sky Survey (2MASS) (UMASS) ( CalTech) (Gallery)
• Virtual Reality All-Sky Milky Way Panorama (Java)
• VRML Tour of the Galactic Halo (Limber Observatory)
• The Web Nebulae (Bill Arnett) (alt)
• Whole Earth Telescope (Variable Stars)
• Woolley Star Catalogue Help

Stars

• Bayer-Flamsteed Designations
• Brightest Stars
• Classification of Stellar Spectra
• The Color-Magnitude Diagram
• Mr. Galaxy's Supernovæ
• Formation of the Heavy Elements
• Latest Supernovae
• Measuring Stars
• Radiative Transfer in Stellar Atmospheres (Utrecht)
• Dynamics of Red Giant Stars
• Risk of Supernova to Earth
• Smith Common Name Cross Index
• Star Naming FAQ
• Star and Constellation Pronounciation Guide
• Star Pronunciation Guide
• Stellar Dust
• Stellar Evolution
• Stellar Evolution & Death (Observatorium)
• Color-Magnitude Diagrams
• Stellar Surface Structure (Lund Observatory)
• 10⁵¹ Ergs: The Evolution of Shell Supernova Remnants
• Variable Star Light Curve Generator

The Sky

• Aladin Interactive Sky Atlas (alt)
• All-sky Panorama
• The Bright Navigation Stars (inc. pronunciation)
• Constellation Abbreviations (CIO)
• The Constellations (John Wallin - GMU)
• Constellations and their Stars (Chris Dolan of U.W. - Madison)
• Constellations FAQ
• Constellations Index (Haworth)
• Constellations Index (Haworth) (Haworth)
• Constellation & Star Names (Paul Graver)
• The Shape of Our Night Sky - Constellation Info
• Constellation Pronunciation Guide ( old) ( older)
• Constellation Quiz (Mt. Wilson)
• Starlore Constellation Guide
• The Constellations Web Page
• Continuous Camera Project (CONCAM)
• The Deep Photographic Guide to the Constellations
• The Dome of the Sky Online Planetarium (alt)
• Google Earth (Google Moon) (Google Mars) (Google Sky)
• Hipparcos/Tycho Star Catalog Home (Site Guide) (Main Catalog)
• Axel Melinger's All-Sky Milky Way Panorama
• The Mythology of the Constellations (Check the Archeoastronomy section for more links)
• Notable Nearby Stars
• Observing Links
• A [multiwavelength] Tour of Orion, the Hunter
• Volume Visualization of the Orion Nebula
• Star and Constellation Pronunciation Guide
• SkyView Cafe
• SolStation (ChView)
• Introduction to Spherical Astronomy (The Celestial Sphere)
• Star and Deep Sky Cross-Reference Data (Robin Gatter)
• Star Charts & Moon Stations
• Star Names (Meanings and Origins)
• Star Pronunciation Guide (alt)
• Stereoscopic Maps of Nearby Stars
• The Three-Dimensional Universe
• 3-D Starmaps & Stereo Starmaps
• Virtual Universe (Don Ware)
  
  
• Object Position, Coordinate, and Separation Calculator (HEASARC)
• USNO A2.0 or SA2.0 Catalog (ftp) ( USNO A-2.0 Catalog ftp) ( Precision Measuring Machine (PMM) Project))

The Solar System

• The Sun
• Venus
• Earth & Moon
• Mars
• Jupiter
• Saturn
• Uranus
• Pluto
• Other Objects
  
  
• Analemma
• The Analemma (photo)
• Asteroid and Comet Impact Hazards
• Asteroid Data Services (Lowell Observatory)
• The Asteroid Orbital Elements Database (astorb.dat) (astorb) (astorb.gz) (old)
• Astrogeology Research Program (USGS) ( Maps & Globes) (Planetary Maps)
• Basics of Space Flight (JPL)
• Basics of Space Flight (Robert Braeunig) (old)
• Center for Earth and Planetary Studies (CEPS)
• EarthSpace
• Exploring the Planets (National Air and Space Museum)
• Galactic Views of the Solar System
• Gazeteer of Planetary Nomenclature (IAU) ( old)
• JPL's HORIZONs Solar System Data and Ephemeris Computation Service (Ephemeris Generator)
• Incoming Asteroids and Other Planetary Objects
• Kepler's Grail (Platonic Solid model of soalr system)
• Laboratory for Atmospheres (GSFC)
• Cylindrical Map Index) ( old? for 3-D Rendering) ( Planetary Maps Wm. Robert Johnston)
• Maps of the Solar System (JPL)
• Minor Planet Center (IAU) (alt) (Naming of Minor Planets) ( Minor Planet & Comet Ephemeris Service)
• Minor Planet 4442 (Garcia)
• Minor Planet Observer
• Minor Planet Mailing List
• Moon List
• NASA Planetary Photojournal
• Near-Earth Asteroid Tracking
• NearEarth.net
• NEO Dys Near Earth Objects Dynamic Site ( alt)
• Near Earth Object (NEO) Program
• Report of the UK Task Force on Near-Earth Objects
• The Nine Planets
• Orbits Dir (David Soper)
• Orrery: Solar System Simulator
• The NASA/JPL Outer Planets/Solar Probe Project
• Planetary Alignments: Fact or Fiction?
• Planetary Data System (JPL)
• Planetary Data System Imaging Node
• Planetary Geology (Simon Hamner, Ottawa RASC)
• Planetary Image Finders
• The Planetary Maps Hub
• Planetary Science Research Discoveries [PSRD]
• Planetary Sciences (NSSDC) ( Planetary Missions, Data and Information)
• Planetary Science Institute
• Planetary Studies Foundation
• The Planetary Web (University College London)
• Planets (Astronomy 121 by Davison Soper - U of O)
• Recent Origins Science from HST
• Regional Planetary Image Facility (CEPS)
• Interactive Solar System Builder (VRML)
• Solar System Browser (USGS Flagstaff)
• Solar System Collision Calculator
• Solar System Dynamics (JPL)
• The Solar System Live (Interactive Orrery)
• Solar System Simulator (JPL)
• Orrery: Solar System Simulator
• Solar System 3-D Orbit Simulator (Liftoff)
• Solar System Visualization Project (JPL)
• Astronomy 161 (The Solar System - Mike Guidry)
• A Space Library (JPL)
• Space Physics Interactive Data Center (SPIDR)
• Space Environment Center (NOAA)
• SpaceWeather
• Today's Space Weather & Solar Image (Space Environment Center)
• Space Weather (Rice)
• Ssystem: OpenGL Solar System Simulator (mirror) (mirror) (mirror) (mirror)
• Stars (Astronomy 122 by Davison Soper - U of O)
• List of Transneptunian Objects (TLE's from CfA)
• The Transit of Venus & the Quest for the Solar Parallax (measuring the AU)
• 3D-Tour of the Solar System
• Solar System Scale Model
• USGS Space Mission Support ( Gazetteer of Planetary Nomenclature)
• Views of the Solar System (HAS) ( LANL Mirror) ( Home) ( Image & Animation Index)
• Virtual Solar System (National Geographic)
• The World of Maps — Astronomy
  
  
• The Sun
• Big Bear Solar Observatory — Latest Images ( Active Region Monitor)
• BISON Helioseismology
• Cosmic & Heliospheric Learning Center (GSFC)
• GONG (alt)
• Hawaii Solar Astronomy
• Helioseismology
• Heliotown (Radio Sun)
• Hinode
• Hinode [formerly solar-b]
• Solar Web Guide (Yohkoh)
• About the Sun (Stanford)
• Institute for Solar Physics ( Solar surface images)
• International Solar-Terrestrial Physics (ISTP) (alt)
• Laboratory for Astronomy & Solar Physics (LASP)
• Live from the Sun (Passport to Knowledge)
• The Solar Dynamo
• NASA/Marshall Solar Physics
• National Solar Observatory
• Optical Solar Patrol Network (OSPAN)
• Solar Data Analysis Center (SDAC) (GSFC) (latest images) (alt)
• Solar Exercises (Dr. Strauss)
• Solar Flare Theory (GSFC)
• Solar-Terrestrial Activity Report
• Solar-Terrestrial Dispatch
• Solar and Upper Atmospheric Data Services (National Geophysical Data Center)
• The Sun (Views of the Solar System)
• The Sun (Hawastoc Edu Site)
• The Sun: An Introduction to MHD (St. Andrews)
• sungazer.net
• SOHO Summary Database ( SOHO/EIT Synoptic Solar Images) ( Very Latest SOHO ("real-time") Images) (hotshots)
• Solar Oscillation Investigation (SOI)
• Solar MHD Theory Group (St. Andrews)
• Solar and Upper Atmospheric Data Center (NOAA)
• Solar Learning Activities (Yohkoh)
• Solar Physics (Marshall Space Flight Center)
• SOLIS (Synoptic Optical Long-term Investigations of the Sun)
• STEREO Solar Observatory
• Sungrazer Comets
• Sunspots (Exploratorium)
• International Solar-Terrestrial Physics (ISTP)
• Timeline of Solar-Terrestrial Physics
• Transition Region and Coronal Explorer (TRACE) ( coronal Loop images) ( coronal loop movies) (alt) (POD) (cd-rom) (TRACE Archive Overview)
• The Sunspot Cycle
• Ulysses
• The Virtual Solar Observatory
• The Virtual Sun (A Multimedia Tour) (old)
• YPOP Solar Learning Activities ( YPOP Tour of the Sun: Surfing for Sunbeams!)
• Yohkoh Observatory
  
  
• Venus
• The Venus Hypermap
  
  
• Earth and Moon
• The Blue Marble (global imagery) (Visible Earth)
• Center for Earth and Planetary Studies (CEPS)
• Digital Lunar Orbiter Photographic Atlas of the Moon
• Earth
• Earth and Moon Viewer (alt)
• EarthDial project
• Earthrise
• EarthExplorer (webglis)
• Earth from Space
• Earth Observatory (NASA) (Reference)
• Earth Observing System (EOS) — Terra
• EarthViewer (DigitalGlobe) (Commercial)
• The Sun-Earth Connection (NASA GSFC)
• The Earth View Eclipse Network
• The Eclipse Zone
• Why Do Eclipses Happen? (Exploratorium)
• Eric's Black Sun Eclipse Site (asteroids & comets, too)
• Espenak's Eclipse Home Page
• Geologic History of the Moon
• Geostationary Operational Environment Satellite (GOES) ( Polar Orbiting Environmental Satellites (POES))
• Exploring Earth from Space (GSFC)
• Exploration of the Earth's Magnetosphere (alt)
• International Earth Rotation Service
• Landsat Program (Landsat 7 Web) (LandSat 7 Teacher's Kit)
• Lunar Eclipse Information (BlackSun)
• Lunar Observations with BU Imaging System
• MODIS Land Rapid Response Sytem Gallery
• Lunar Republic — Official Website of the Moon ( The Full Moon Atlas: Lunar Navigator)
• Moon Illusion Explained (Don McCready) (Bad Astronomy) ( Griffiths Observatory) (Donald Simanek) ( Explaining the Moon Illusion) (Ponzo Illusion and the Moon)
• MoonViewer (Colin Holgate; just for fun; from SNP X)
• MrEclipse
• Find Mt. Everest from Space
• NSSDC Photo Gallery: Earth ( Earth & Moon)
• Project EarthView (GOES Realtime Data)
• Tutorial on Earth/Sun Relations and Seasons
• SeaWiFS Satellite
• SpaceImaging.com — Earth Information (Ikonos)
• TerraServer
• Total Ozone Mapping Spectrometer (TOMS)
• UVI Ultraviolet Imager — What is the Aurora Doing Today?
• Visible Earth
• Visualizing Earth (UCSD) (3D Anaglyphs!)
• What Causes the Tides?
• NASA World Wind [Satellite Imagery of Earth] (NASA World Wind Moon)
  
  
• Apollo Lunar Surface Journal (alt)
• Apollo Mission Lunar Exploration Gallery ( Lunar Panoramas [QTVR])
• Clementine images from the Moon ( Other Clementine data) ( Slide Sets)
• Clementine — USGS Images
• Clementine Lunar Image Browser
• Did We Land on the Moon? (Robert Braeunig) (old)
• Exploring the Moon
• The Face of the Moon - from Galileo to Apollo
• Hitchhiker's Guide to the Moon
• InConstantMoon
• Lunar Eclipse Finder [Calwell Lunar Observatory]
• Lunar-Occultations.Com [Robinson Lunar Observatory]
• Lunar Outreach Services
• Lunar Phases (USNO)
• Apollo Lunar Surface Journal
• Lunar and Planetary Institute
• The Moon Lander Page (Hijacked! Now advertising)
• Moonlink (Lunar Prospector)
• Project Apollo Archive
• The Apollo Manned Space Program
• Apollo Saturn Reference Page
• Moonnhoax
• Moon-Watch
• The Origin of the Moon
• spacecraftfilms (Apollo footage)
• We Like the Moon (the Spongmonkeys)
  
  
• Mars
• ALPO's Mars Site
• Center for Mars Exploration
• Daily Mars Odyssey THEMIS (Thermal Emissions Imaging System) Image
• The Face on Mars
• Intermarsnet
• Maestro (JPL software)
• Mars (JPL)
• The Mars Academy
• Mars Atlases and Image Finders
• Mars Exploration Rover ( gallery) ( video) (Athena — Cornell) ( Pancam Panoramas)
• Mars Global Weather, Climate, and Atmosphere FAQ
• Mars Missions
• Marsoweb
• Mars Profiler
• Mars Today
• Marswatch
• Mars Weather, Climate, and Life FAQ
• Mars Global Surveyor New and Recent Pictures (Malin Space Science Systems) ( Mars Global Surveyor Picture Archive)
• Mars Renders ( Terragen)
• Mars24 Time on Mars (applet)
• Mars Virtual Spaceflight
• PDS Mars Explorer for the Armchair Astronaut (MapMaker)
• Spiders on Mars
• Technological Requirements for Terraforming Mars
• Telling Time on Mars
• Topography from MOLA (MGS)
• Web Interface for Telescience (WITS)
• The Whole Mars Catalog
• Whole Planet Renderings ( high res) (North pole)
  
  
• Jupiter
• GRS Transit Calculator (Sky & Telescope)
• Java Jupiter
• Jupiter Satellite orbital elements
• Life on Ice
• JupSat
• Orbital Elements for Jupiter's Satellites
• Radio JOVE
  
  
• Saturn
• The Saturnian Irregulars Home Page
• Saturn's Rings - Historical Background
• Saturn's Ring System
• Saturn Satellite orbital elements
• Plane Crossings of 1995-1996
• Systema Saturnium (Christiaan Huygens)
  
  
• Uranus
• Urunas Satellite orbital elements
  
  
• Pluto
• Pluto Home Page
  
  
• Other Objects
• Comets and Meteor Showers (old)
• Eris
• IAU List of Close Approaches
• ICQ Comet Information Website
• International Meteor Organization
• Java Impact and Gravity Simulator
• The Kuiper Belt
• MeteorMan — Robert Haag [meteorite collector/vendor]
• Meteorite Market
• Minor Planet & Comet Ephemeris Service
• Naming of Minor Planets
• Nomad
• NASA Ames Asteroid and Comet Impact Hazards
• NASA Meteor Radar
• NEO (Near Earth orbit) Program (Orbits Java Applets)
• Radio Meteor Tutorial
• Sandia National Labs Comet Impact Site
• The Comet Observation Home Page ( IAU orbital elements for astronomy software) ( Minor Planet & Comet Ephemeris Service)
• Comet-Track (Bob Yen)
• Sungrazer Comets

Objects, Concepts, and Phenomena

• Astrophysics Movies — Black Holes and Neutron Stars (Stuart Shapiro - UIUC Center for Theoretical Astrophysics)
• Basics of Space Flight (JPL)
• Black Holes, Active Galaxies, and Quasars: Animations & Video
• Black Holes and Beyond (NCSA)
• Black Holes Candidates (Astronomy Cafe)
• Black Hole Hunter
• Can you hear black holes collide?
• The Black Hole in the Galactic Center
• Black Holes and Neutron Stars (Essay)
• Black Hole FAQ (Ted Bunn, CfPA)
• Black Hole FAQ (Sci.Physics)
• Black Holes Home Page (faq)
• Black Hole Simulations
• Black Holes (ThinkQuest)
• Jillian's Guide to Black Holes ( old) ( older)
• Jillian's Guide to Gravitational Waves
• Animation of the Accretion Disk Around a Rotating Black Hole
• Cambridge Relativity
• What is a Brown Dwarf?
• Heidelberg Cosmic Dust Group
• Earth Impact Effects Calculator [girant impactors]
• The Electromagnetic Spectrum (Imagine!)
• The Electromagnetic Spectrum (Imagers)
• Exploring Gravity Gravity Tutorials
• Frequently Asked Astronomy and Physics Questions
• The Gravity Page (J.R. Stockton)
• Black Holes: Gravity's Relentless Pull
• The Information Realm (Stars, Black Holes, Wormholes, ...)
• Lagrange Points
• Lagrange Points
• Paul Wiegert (SS dynamics) (Trojans)
• Trojans (New Astronomy)
• Magnetars (Neutron Stars/ soft Gamma-Ray Bursters)
• Magnetars (Science@NASA)
• Informal Introduction to Neutron Stars (old)
• Orbit Simulator
• Interactive Planetary Orbits
• Internal Structure of a Neutron Star (HESARC)
• Princeton Pulsar Group
• Introduction to Pulsar Astronomy (Jodrell Bank) (inc. ( The Sounds of Pulsars)
• Space Audio (Sounds of Space)
• Quasars & Active Galactic Nuclei WWW Gallery (Bill Keel)
• Seeing the Whole Symphony (illustration of limitations studying just one spectral band)
• Virtual Astrophysics - Trips to Black Holes and Neutron Stars (alt)
• White Dwarf Pulsation Visualizations (Spherical Harmonics)
• Probing Massive Black Holes with X-Ray Observations
  
  
• Panspermia [Brig Klyce]
  
  
• Orbits Used By High Altitude Satellites
• Miscellaneous Spacecraft & Technologies
• Orbital Elements (SkyWatch)
• Rocket and Space Technology (Robert Braeunig)
  
  
• SpaceFlight Now
• Tethers Unlimited

NASA

• NASA
  
  
• Hubble Public Pictures (HubbleSite)
• NASA Homepage
• NASA Multimedia Gallery
• Other Cool NASA Web Sites
  
  
• Clickworkers
  
  
• Dreamtime
• NASA TV (Yahoo!)
• SpaceWatch
  
  
• Ames Research Center (NASA Ames Applied Information Technology Division) ( News & Picture Release Archives)
• Astrobiology at NASA
• Astronomical Data Center (NASA GSFC)
• Astrophysics Data Facility (GSFC)
• ADS - NASA Astrophysics Data System (worldwide mirror) ( Abstract Service)
• Brain Bites [NASA Random FAQ]
• Chandra X-Ray Observatory Center ( Observatory Multimedia Resources)
• Compton Observatory Science Support Center
• Deep Space Network (DSN) (DSN Radio Astronomy)
• Dryden Flight Research Center
• Earth Observatory (NASA)
• Exobiology Program (Ames)
• Gateway to Astronuat Photography
• Goddard Space Flight Center (GSFC)
• NASA Human Spaceflight
• Jet Propulsion Laboratory (JPL)
• JSC History Portal
• Kennedy Space Center
• Laboratory for Terrestrial Physics
• Lewis Research Center
• Liftoff to Space Exploration (including the Liftoff Space Academy; Marshall)
• Marshall Space Flight Center
• NASA Astrophysics Data System (ADS)
• The New Millenium Program
• Observatorium (Public access to NASA Earth and Space Data)
• Origins of the Universe (NASA Origins Program)
• NASA Quest
• NASA Science News
• Nasa Watch
• National Space Science Data Center
• Office of Space Flight
• Science@NASA (alt)
• Science Visualization Studio (NASA GSFC)
• SpaceScience.com (NASA) (Sister Site to Science@NASA)
• SpaceLink (Resources for Educators)
• Space Projects Division (NASA Ames)
• Space Science Division (NASA Ames)
• Space Telescope Science Institute (STScI/HST Public Information)
• Visible Earth (NASA)
  
  
• Amazing Space Educational Activities
• Build our own space telescope (NGST)
• Educational Activities at the Space Telescope Science Institute
• Imagers The Adventures of Echo the Bat (Interactive Multimedia Adventures for Grade-School Education Using Remote Sensing)
• NASA Educational Links
• Space Amateur Radio Experiment (SAREX) (ARRL SAREX News)
• The Space Place (JPL)
• StarChild
• Thursday's Classroom
  
  

  Cassini

  Cassini-Huygens Main

  Cassini-Huygens

  Cassini

  Cassini Flight Path ( Where is Cassini Now?)

  CICLOPS — Cassini Imaging Central Laboratory for Operations

  Cassini Imaging Diary (CICLOPS)

  Cassini Q&A (NASA Quest)

  Millenium Flyby

  Galileo

  Galileo Home Page (JPL) (old URL)

  Callisto Flyby

  Io Flybys

  Orbital Elements

  Hale-Bopp

  Comet Hale-Bopp Home Page (JPL)

  JPL

  JPL (H-B for non-scientists)

  Hale-Bopp Watch

  Hale-Bopp Links

  Sky & Telescope

  HiRISE

  HiRISE Image Catalog

  Hubble Space Telescope

  Space Telescope Science Institute (STScI/HST Public Information)

  Hubble NewsCenter

  Where is the Hubble Space Telescope Now? (JTrack)

  Archive

  Hubble Heritage Project

  HubbleSite

  Hubble Space Telescope: New Views of the Universe

  Hubble Ultra-Deep Field

  ESA Hubble Information Center (alt)

  Space Telescope European Coordinating Facility (ST-ECF)

  Astronomy Resources at STScI

  News Archive

  FITS Liberator [FITS plugin]

  Starfinder [video series]

  Video Archive
  
  

  Pillars of Creation

  Interactive M51

  International Space Station

  International Space Station (ISS) Home

  ISS: Current Position (Maximov)

  ISS Location Feed (Space.com)

  Where is the International Space Station? (JTrack)

  Space Station Science Picture of the Day

  Video Tour of Zvezda Module

  Images & Video

  Visibility Predictions (Sky & Telescope)

  TLE's (SkyWatch)

  NORAD TLE's (Celestrak) (Master TLE Index)

  Satellite Photos from Earth ( Telescope Views & Animations)

  Magellan

  Magellan Home

  Magellan (NSSDC)

  Mars Global Surveyor

  Mars Global Surveyor (JPL)

  Mars Global Surveyor VRML

  Orbit

  Orbital Elements

  Mir

  MirCorps

  Mir (NASA Office of Space Flight)