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Página Principal - Marcus Martins / Minas Gerais / São Paulo / BRASIL - English

Astronomia é hoje uma das nossas atividades prediletas!

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 Satelites - lixo espacial em tempo real - Clique e veja

nasa.gif (4005 bytes)ISS - PLANETA TERRA AO VIVO - 4 cameras em tempo real - Clique e veja

O UNIVERSO

Astronomia Geodésica

Centro de Estudos Astronômicos de Alagoas

Sociedade Astronômica Brasileira

Sociedade Astronômica do Recife

Sociedade de Est. Astronômicos de Sergipe

Astronomia Geodésica

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Buracos Negros

Jupiter    

Marte 

Saturno

 

Observatório   Wykrota

 MONITORAMENTO DOS ASTERÓIDES PRÓXIMOS DA TERRA

Clique na imagem abaixo e veja o quadro das temperaturas no mundo:

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Foto : última montagem global          Filme : últimas duas semanas

 

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nasa.gif (4005 bytes) I - NASA - AO VIVO / Video            nasa.gif (4005 bytes) II - NASA - AO VIVO / Video

  

nasa.gif (4005 bytes) III - NASA - AO VIVO / Video           

  

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FASES DA LUA NOS ANOS:
1921 1922 1923 1924 1925
1926 1927 1928 1929 1930
1931 1932 1933 1934 1935
1936 1937 1938 1939 1940
1941 1942 1943 1944 1945
1946 1947 1948 1949 1950
1951 1952 1953 1954 1955
1956 1957 1958 1959 1960
1961 1962 1963 1964 1965
1966 1967 1968 1969 1970
1971 1972 1973 1974 1975
1976 1977 1978 1979 1980
1981 1982 1983 1984 1985
1986 1987 1988 1989 1990
1991 1992 1993 1994 1995
1996 1997 1998 1999 2000
2001 2002 2003 2004 2005
2006 2007 2008 2009 2010
2011 2012 2013 2014 2015
2016 2017 2018 2019 2020

 

O Sol

O Sistema

Os Planetas

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A Crise de Energia Elétrica

 

Galileu Galilei

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PERIGO: A camada de OZÔNIO

 

Observatório THE ARCTURUS

 

 

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As Constelações

 

Observatório de Uberlândia

 

Museu de Astronomia e Ciências

cptec2.gif (1486 bytes)Monitoramento do Clima

 

Conheça o Projeto URÂNIA

 

INFA - Fenômenos  Aeroespaciais

 

Estação Orbital MIR

Telescópio Hublle                              Astronomy

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Rádio Astrolaboratório - Itália

  Meteorscatter - More Miles On VHF

 Notas sobre eclipses - Notas para professores

Curiosidades sobre Astronomia

 A cada hora, o universo se expande 1,6 bilhões de quilômetros (um bilhão de quilômetros em cada direção).

 Há alguns cientistas afirmando que parte da interferência na sua TV se deve as ondas do Big Bang quando foi gerado o Universo.

 Planetas, constelações e galáxias formam apenas 4% do universo. O resto é feito de matéria escura, um tipo estranho de matéria sobre a qual os cientistas sabem muito pouco.

 A nossa galáxia, chamada Via Láctea, tem cerca de 200 bilhões de estrelas, embora alguns astrônomos acreditem que sejam bem mais do que isso.

 A galáxia mais próxima da Via Láctea é Andrômeda, também chamada de M31, localizada a dois milhões de anos-luz de distância.

 A Via Láctea e a galáxia de Andrômeda fazem parte do mesmo aglomerado galáctico, o Grupo Local, com 30 membros. Segundo os astrônomos, Via Láctea e Andrômeda, no futuro, se chocarão formando uma só galáxia. Vale lembrar que viajam pelo espaço na direção do aglomerado de Virgem, formado por centenas de outras galáxias.

As constelações mais conhecidas no Brasil são a do Cruzeiro do Sul e Órion. A constelação de Órion é, em parte, formada por 3 estrelas alinhadas denominadas As Três Marias. Para os gregos antigos, elas representavam o Cinturão de Órion.

A luz que vem do sol demora cerca de 8 minutos para chegar a Terra. Pode parecer estranho, mas a luz de muitas estrelas levam milhares de anos para chegar até aqui. Se uma estrela que fica a 15.000 mil ano-luz explodir nesse momento, o evento somente será visto da Terra daqui a 15.000 mil anos.

A terra gira a 1.600 km/h, mas viaja em sua órbita ao redor do sol a mais de 107.000 km/h.

Lembre-se que a Terra não é exatamente uma esfera.

O peso da Terra é de  5.980.000.000.000.000.000.000 toneladas.

A Lua se afasta da Terra a uma velocidade de 1 a 3 centímetros por ano. Em cada século se afasta três metros.

O Sol é 330.000 vezes maior que a Terra. Aliás, você sabia que o Sol possui 99,9% de toda a matéria do nosso Sistema Solar?

Júpiter é duas vezes maior do que todos os outros planetas, satélites, asteróides e cometas do Sistema Solar juntos.

O planeta do Sistema Solar com o maior número de luas é Júpiter, ele tem 63 luas.  O segundo lugar fica com Saturno, com 34 luas.

Existem cinco planetas-anões no nosso Sistema Solar: Ceres, Plutão, Haumea, Makemake e Éris. Alguns cientistas, no entanto, suspeitam que esse número seja bem maior.

A temperatura da Lua pode chegar a 100º C durante o dia lunar e -175º C à noite.

A estrela mais luminosa da Via Láctea é Eta Carinae, que emite cinco milhões de vezes mais energia que o Sol.

Já a estrela mais brilhante descoberta pelo ser humano é a supernova SN1987A, da galáxia Grande Nuvem de Magalhães. Sua luminosidade é maior do que a da sua própria galáxia.

A constelação do Cruzeiro do Sul é formada por 54 estrelas; porém, somente cinco são visíveis a olho nú.

Os cientistas não sabem precisar quantas galáxias existem no Universo, mas calculam que seja algo em torno de 100 bilhões. O número de estrelas varia de galáxia para galáxia, ficando entre 100 bilhões e três trihões de astros.

Existem vários sistemas de identificação de astros. Os mais usados são o sistema Messier (M) e o Novo Catálogo Geral de Nebulosas e Aglomerados de Estrelas (NGC). Muitas galáxias são identificadas pelo dois sistemas. Um exemplo é Andrômeda, que é identificada como M 31 e NGC 224.

Galáxias são sistemas formados por poeira, gases e estrelas unidas por sua própria gravidade. Existem diversos tipos de galáxias: espirais (como a Via Láctea), elípticas, barradas e irregulares.

Nebulosas são corpos celestes formados por gases e poeira, nas quais nascem as estrelas. Ganhou esse nome por serem parecidas com nuvens. As nebulosas mais conhecidas são a de Água, Órion, Bumerangue, Olho de Gato e Tarântula.

Estrelas de nêutrons são corpos supercompactos, ultra massivos, que giram muito rápido e possuem gravidade extremamente alta. São formadas quando estrelas com massa oito vezes maior que a do Sol esgota sua energia nuclear.

Anã branca é a fase final de uma estrela, depois que ela desprendeu suas camadas externas, restando apenas o núcleo. São corpos pequenos, com matéria densa e quente, além de brilho intenso.

Buracos negros são estrelas pesadas, que entraram em colapso. Sua gravidade é tão intensa que afeta o espaço em volta e atrai a própria luz.

Quasares (quasar é uma abreviação de “quase estelar”) são buracos negros gigantes no centro das galáxias. São fortes emissores de luz e ondas de rádio. Esse tipo de corpo celeste gira muito rapidamente. Os astrônomos acreditam que são alguns dos objetos mais antigos e distantes do Universo.

O maior vulcão conhecido situa-se em Marte, o Monte Olimpo, 3 vezes mais alto que o nosso Monte Evereste;

As estrelas anãs são tão densas, que um dado feito desse material pesaria tanto como um carro;

Todos os anos caem cerca de 150 toneladas de meteoritos e fragmentos na Terra. Trata-se de uma média de 410kg por dia;

As estrelas não cintilam. O que vemos, é a interferência da atmosfera terrestre na luz que chega até nós;

O impacto da alunagem da Apollo 12 fez com que a superfície lunar vibrasse durante 55 minutos;

O primeiro pé a pousar na Lua (de Neil Armstrong) calçava o número 41;

Links interessantes de Astronomia

 
  3si, Inc National Weather Service Office - New York
  701 Sierra Vista  National Weather Service Office - Norman
  A glossary of NEO terminology  National Weather Service Office - Philadelphia
  A simple screen National Weather Service Office - Phoenix
  AAVSO Gamma-Ray National Weather Service Office - Raleigh
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  Aben Brown's Minidome  National Weather Service Office - Salt Lake City
  Accu-Weather, Inc National Weather Service Office - San Juan, PR
  Acorn Hollow Observ National Weather Service Office - Seattle, WA
  Acorn Hollow Observatory  National Weather Service Office - Sterling, VA
  Advanced Designs Corporation National Weather Service Office - Topeka, KS
  Aerospace & Marine International National Weather Service Office - Tulsa, OK
  Affordable Weather Advisor National Weather Service/Weather Info Network
  Agricultural Weather Information Service National/Naval Ice Center
  Agricultural Weather.Com Nat'l Severe Storms Lab.
  Alden Electronics Home Page Naval Postgraduate School Meteorology
  Alert Meteorological Research Teams Navy Research Laboratory - Monterey
  Alt.talk.weather NCAR Information Server
  Amateur Astronomical NCAR.weather
  Amateur Astrophotography and CCD Image Link NCDC CLIMVIS on-line archives
  American Astronomical Society Page NCDC Hurricane System
  American Meteorological Ne.weather
  American Meteorological Society Nee-Bee Observatory
  American Meteorological Society Gopher Neptune
  American University of Paris  New England Cable News Weather Center
  American Weather Concepts New Jersey Online Farmer's Almanac Weather
  American Weather Enterprises New Mexico State University 
  American Weather Office Newsgroups: MarsToday 
  Ames Area Amateur Astronomers (Iowa)  Newsgroups: Planetary Science
  An up-to-date listing - known NEOs  Newsgroups: Space News Online
  Andjelko Gliver Newsgroups: The Discovery Channel Online 
  Andjelko Gliver  Newsgroups: The Orange County Register
  Antarctic Meteorological Research Center NF/ Observatory
  Antares- Observatório Antares - Bahia NOAA
  Apogee Robotic Observ. NOAA - PORT - provides access
  Arcturus Observatory NOAA Atlantic Oceanographic /Meteorological
  Arcturus Observatory  NOAA AVHRR Oceans Pathfinder Home Page
  ARGO Cooperative Observatory NOAA AVHRR Pathfinder Home Page
  Arie Nagel  NOAA Climate Diagnostics Center
  Arizona State University  NOAA Climate Prediction Center
  ASH Naylor Observatory NOAA Defense Meteorological Satellite Program
  ASH Naylor Observatory  NOAA El Nino Homepage
  Astrobyte NOAA Environmental Information Gopher
  Astronomy NOAA Environmental Technology Lab
  Astronomy and Astrophysic-guide NOAA Forecast Systems Lab
  Astronomy and Astrophysics-Library NOAA Geostationary Satellite Browse Server
  Astronomy Home Pages at Cambridge NOAA Home Page
  Astronomy of Lawrence NOAA Interactive Climate Data
  Astronomylinks.com NOAA Master Directory
  Astropad NOAA National Data Bouy Center
  Astrophysics Data System at Harvard NOAA National Geophysical Data Center
  AstroWeb at CDS: yellow-page Services NOAA Network Information Center/NWS
  Athanasios Georgiou NOAA Weather Radio Listings
  Athanasios Georgiou  NOAA Western Regional Center
  Atkins Schlacter & Assoc., Inc. (ASAI) North Carolina State Weather Gopher
  Atlantic Canada Weather Watchers North Carolina State WWW Server
  Atmospheric Emitted Radiance Interferometer North Carolina University--Mars Mission 
  Atmospheric Profiler Research Facility North Dakota Regional Weather Center
  Australian National University  North Saint Paul, MN Weather Observatory
  Automated Weather Source Homepage Northeast Regional Climate Center
  Aviation Weather.Com Northeast Weather Newsgroup Archives
  B.V. (CNPq)- Biblioteca Virtual Northern Cross Observatory
  BBsea Ltd. Homepage Northern Illinois University Meteorology
  Bear Observatory Northern Maine Weather Watch
  Bermuda Bio Station for Research Satellite Northwestern University 
  Bert Katzung Northwood Ridge Observatory
  Bert Katzung Nova Quest Observatory
  Berthold Hamburger  NovaLinx Corporation 
  Big Bear Solar Observatory Numerical Models
  Big Bend Astronomical Society NWS AVHRR Snow Cover Maps
  Big Woodchuck Solar Observatory NWS Communications Gopher
  Bil Hill Observatory NWS Internet Weather Source
  Bil Hill Observatory  Nyrola Observatory
  Bill Arnett's temporary hack Oak Creek Observatory
  Biosphere 2 Center Observatoire de Paris
  Biosphere 2 Observatory  Observatoire Gap-47
  Blue Skies Gopher (U. of Michigan) Observatoire Gap-47
  Bob Hart's Offshore and User Observation Observatoire Mirabilis
  Bob McGovern Observatorio ARVAL: Caracas-Venezuela
  Bob Van Deusen's Flip Roof Oceanweather Homepage
  Bobby Middleton OGP ENSO Home Page
  Bob's Backyard Observ. Ohio State Weather Server
  Boston Meteorologist Todd Gross's  Ohio State Weather Server
  Boston University  Oil Region Observatory
  Bradford Robotic Telescope Observatory ON - Observatório Nacional
  Bruce Johnston Optical Observatory
  Cable News Network (CNN) Weather Page Oregon State University Climate/Weather
  Cal Sandfort Oregon State University Weather Data
  California Regional Weather Server Orion Observatory
  Camanche North Osmundsto Observatorium
  Camanche North Observatory  OV - Observatório do Valongo / UFRJ
  Canadian Meteorological Centre Owl Observatory
  CAPS -- Analysis and Prediction of Storms Oxford University
  CAPS -- Tornado Alley Chronicles Pacific Air Force Command Center Weather
  Catania Astrophysical Observatory Paddy's Green Observatory
  Cave Creek Observatory Palm Beach Post Hurricane Guide and News
  CBF-AM Radio (Montréal) Weather Palominas Star Haven
  CCD Imaging Paul Andrew
  CCD imaging homepage of Jeremy Shears Paul Robinson Observatory, NJAA
  Center for Advanced Space Studies PC Weather Products, Inc.
  Center for Earth & Planetary Studies PDS Planetary Rings Node
  Center for Ocean-Land-Atmosphere Studies Pelican Observatory
  Central Atlantic Storm Investigators Penn State Meteorology
  Central Connecticut University Weather Pennsylvania Weather Page
  Central Michigan University Peterberg Observatory
  Centro de Divulgação Científica e Cultural Petroglyph Observatory
  CFRN-TV (Edmonton) TV Weather Report Phillips Laboratory Atmospheric Science
  Chris Heapy Pickney Ridge Observatory
  Chris Picking Pier_Tech, fancy piers
  Cidadao's Lunar and Planetary Piesport Observatory
  CIMSS Regional Assimilation System Forecast Plainfield, VT Weather Report
  City of Vineland (NJ) Archive Planetary Biology 
  Clari.news.weather Planetary Data System (PDS) 
  Clearview Farm Observ Planetary National Space Science
  CMEX - Center for Mars Exploration Planetary Observers
  CNPq – Cons.Nac. Desenv.Cient. e Tecnológico Planetary Protection  Bibliography
  College of DuPage NEXLAB Planetary Science
  Colo. State Univ. hurricane Planetary Science
  Colorado State University Planetary Science-2 -Discussions
  Colorado Weather Underground PlettStone
  Colorado Weather Underground  Plymouth State WWW Server (NH)
  Colorado Weather Underground Gopher Polar Clouds and Radiation from AVHRR
  Comet and Asteroids Polar orbiting weather satellite images
  Comet Shoemaker-Levy Home Page (JPL)  Port Elizabeth Observ
  Comets and Asteroids Portland (OR) Schools Meteorological Network
  Commercial weather sources Portsmouth Weather Records Service
  Compu-Weather, Inc Potsdam, NY Temperature Plot
  Contel DUAT System (restricted access) Powell Observatory
  Contel DUAT System (restricted access) Pretty Pictures from Space 
  Cornell University Weather & Climate Prodigy Weather Group
  Cornell University Weather & Climate Ptolemy's Cafe
  Cracow Observatory Purdue WXP Gopher
  Cyberhole Online Astronomy Purdue WXP Weather
  Dakota State University Weather Radar
  Dalhousie University Atmospheric Science Radio Astronomy Group (RAG): Zurich, Switzerland.
  Dark Matter Discussion (U.C. Berkeley) Ralph Pass
  Darklight Observatory  Randy Brewer's deck
  DAS-INPE - Depto. de Astrofísica Rawhide Space Page
  Dave Bloomsness Ray Gralak's CCD Images
  Dave Bloomsness Real-Time Environmental Applications
  David Fansler Red Sprites & Blue Jets - Thunderstorms
  David Morris Resorts Sports Network Weather Cam
  David Ratledge Rfreeze
  DayWeather Homepage Robert Domed Observatory
  Deck House Observatory Robert Rolling Roof
  Deep Sky Eye Robin Kemp
  Deer Meadow Observatory  Robinson Astronomical Observatory
  Defense Advanced Projects Robosky
  Denny Woolaghan Rockland Observatory
  Departamento de Astronomia da UFRGS  Roemer Weather
  Destination Earth Rutgers University Meteorology
  Devon Oxford SAB - Sociedade Astronômica Brasileira
  Digital Remote Imaging Group - Weather  San Diego BayCam
  Discovery Missions - NASA's Solar System Exploration San Francisco State Univ. Meteorology
  Doc Greiner Satellite
  Domi Verrascina Satellite composite images
  Don Dillinger's Garden Shed Satellite Derived Temperature
  Don Franck Satellite Images - really interesting 
  Don Franck Satellite Images - really interesting 
  Donn Starkey Satellite Images - really interesting 
  Doug Clapp Satellite TVRO 
  Doug Clapp Satscan Electronics TVRO products 
  Doug Kranz Saturn
  Eagle Observator SBPC – Soc.Bras. p/ Progresso da Ciência
  Eagle Observatory Sci Aeronautics-The science of aeronautics
  Earth and Solar System Exploration -NASA Sci Answers-Repository for periodic Usenet
  Earth Observation Center of NASDA -JAPAN Sci Planetarium-Discussion 
  Earth Observing System Sci.geo.meteorology 
  Earth Science and Remote Sensing sci.geo.meteorology FAQ
  NASA Goddard Space Flight Center  Science Research-Discussion
  Earth Science-Solar System Exploration Scripps Climate Research Division
  Earth-Crossing Asteroids Sea Surface Temperature
  Earth's Moon Sea Viewing Wide Field
  EarthSat Corporation SEDS -- Astronomical Anonymous
  EarthWatch Communications SEDS Messiar Database-All Messier objects+A686
  Ed Couture Semi Permanent
  Eddie Trimarchi Sensor Instruments Co, Inc
  Educational Resources SensorMetrics Homepage
  EINET Astronomy Listing Several articles
  Elsberry Observatory Sewickley Academy Observatory
  Elsberry Observatory Shannon Collapsible Hoop Dome
  Environment Canada - Maritimes Shoji Suzuki's CCD astro-imaging
  Environment Canada - Pacific & Yukon Shrine of Saint Elwood
  Environment Canada - Toronto Shuttle Program: The space shuttle program. 
  Environmental Research Services Silvercreek Observatory
  Eric Schandall Simon's Dome
  Erik Hansen Sky & Telescope magazine 
  Etscorn Campus Observatory Sky Publishing=Home of Sky & Telescope
  EverStaR Observatory Sky Tour Observatory
  Fairweather Forecasting Skyjunkie's Observatory
  Falmouth, MA Monthly Climate Report SkyScape Observatory
  FEMA Tropical Weather Watch Skyshooter's Mobile Dome
  Fire monitoring satellite images(North and South America) SOAR – Proj.Brasil - EUA-telescópio 4mts
  Fleenor Observatory  Sociedad Planetaria en Español!
  Fleet Numerical Meteorology/Oceanography Sociedade Astronômica Brasileira 
  FleetWeather, Inc. Sociedade Planetária
  Florida EXPLORES! Home Page Society of Amateur Radio Astronomers
  Florida State Meteorology Solar and Heliospheric Observatory
  Florida State Univ Gopher Solar Insolation Plots and Images
  Folding Portable Observatory Solar Resources
  Forecast Factory curriculum Solar Sails Home Page-Photonic propulsion
  Fox Park Public Observ. Solar System Live 
  Fox Weather Services Solar UV Atlas from HRTS: University of Oslo
  Frank J. Shepley Solar: AAA Solar Service and Supply
  Frank Schwartz Solar: AAA Solar Service and Supply 
  Freese-Notis Weather Solar-Terrestrial Physics Page
  Frog Pond Observatory  Sonoita Hills Observatory
  Frog Rock Observatory Sonoma State University 
  Frog Rock Observatory  Sormano Astronomical Observatory
  Fundamentals of Pier Construction South Dakota School of Mines Weather
  Gemini – Proj.Gemini – 2  telescópios 8mts South Dakota State University
  Gendler's Astroimaging  South Florida Water Management District
  General Astronomy-1 - discussion Southeast Regional Climate Center
  General Astronomy-2 - discussion Southern Cross Observatory
  GOES - Geostationary weather satellite images Southern Regional Climate Center
  Germantown/Farmersville, Ohio Archive Space Calendar (JPL at NASA) 
  Global Atmospherics, Inc Space FAQs-2-questions on Usenet
  Global Change Data Center (GCDC) Space Mechanics Group Home Page-Pisa, Italy. 
  Global Change Master Directory  Space News:
  Goddard Distributed Active Archive Spacelink 
  GOES Derived Prod. Collaboration Tool SSEC Data Center Archive
  GOES Derived Prod.Time Graph Plotter SSEC/Experimental NONAME Server
  GOES Derived Products SSEC/University of Wisconsin Weather
  GOES Pathfinder (SSEC) SSEC/University of Wisconsin-Madison
  GOES Satellite Homepage Star Catcher Observatory
  Gordon Rogers's Heavenly Bodies Star Cruiser Observatory
  Graham Mobile Observatory Starhouse Observatory
  Grasslands Observatory Stephen LaFlamme
  Griffin-Hunter Observ. Steve B.
  Griffith Observatory Steve B.
  Guido Pasi Steve Lee
  Haleakala Observatories Steve Stefanik
  Harvard University Steve Trotta
  Heaven's Glory Observatory STI Observatory
  Heaven's Observatory Stone Haven Observatory
  Henz Meteorological Services Stony Ridge Observatory
  High Altitude Observatory Storm Chaser Home Page
  High Energy Astrophysics Science Archive Storm Prediction Center 
  High Knoll Observatory Storm Spotter Glossary
  High Plains Regional Climate Center Striking Images Lightning Photography
  Highland Observatory Sun-Sentinel (S.Florida) Hurricane News
  Hill Observatory Sunshine Weather Books
  Hiraiso Solar Terrestrial Center/CRL SUNY Albany Atmospheric Science
  Historical Significant Events SUNY Albany Weather Gopher
  Hocking Hills Observatory SUNY Brockport Gopher
  Hornback-Stuart Observ. SUNY Brockport Weather Page
  Hubble Space Telescope - 1990-1995 SUNY Oswego Meteorology Homepage
  Hubble: Observing schedules and information SUNY Stonybrook - Physics & Astronomy 
  Hundred Foot Observ Surface
  Hurricane and tropical storm images Sweet Hill Observatory
  Hurricane Hunters Home Page Tarp Domed Observatory
  Hurricane of 1938 - The Long Island Express Telecommunications Library
  Hurricanes 98 dot Com Telescope & Binocular Center Home Page
  Hyde Memorial Observ. Telescope Pier
  Icarus  The International Journal of Solar System Studies Texas A&M Weather Data Home Page
  IF-UFRGS - Instituto de Física - UFRGS Texas Severe Storm Association
  Images of The Planets Texas Tech Atmospheric Science Group
  imaging Home page Texas Weather Instruments, Inc
  Indian Institute of Science The ABCs of Near Earth Objects (NEOs)
  NICMOS-Infrared Camera-Spectrometer The Asteroid-Comet Impact Hazard
  Infrared Optical Telescope Array The Astronomy Center
  Institute for Meteorological Satellite Studies The Astronomy Center 
  Institute for Research in the Atmosphere The Dobservatory
  Instituto Astronômico e Geofísico - USP The European Asteroid Research: Milan, Italy 
  Instituto Galileo Galilei  The International Astronomical Union - Harvard
  Integrated Earth Information Server The Kiowa Observatory
  Interactive Marine Observations The Meadow Observatory
  International Astronomical Union The Meadow Observatory
  International Lunar Exploration Group The Mueller Observatory
  International Solar-Terrestrial Physics The Outhouse
  International Weather Satellite Imagery The PLANETARY SCIENCE INSTITUTE
  Iowa State University Atmospheric Sciences The Planetary Society -- Japan
  IPS Radio & Space Services - Australian The Star*s Family: A collection of directories, 
  ItalianObservatoryLinks THE Star: The Italian Solar Physics Community
  IUA Minor Planet Center The Thunderchild
  Jack Deckers Satellite TVRO & TV/Radio  The Weather Network (Canada)
  James Kevin Ty's home page The Weather Office (Environment Canada)
  James Maxwell Observ The Weather Underground
  James Roe Three Rivers Observatory
  Jeff King Thrush Observatory
  Jefferson Valley Observatory  Tim's StarDust
  Jet Propulsion Laboratory  TOC Observatory
  Jim and Yvonne Roe's Today's Space Weather
  Jim Pennington Todd Gross's Astronomy 
  Jim Vail's Flip Top Todi Astronomical Observatory
  Joe Garlitz Tornado Project Online
  Joe Garlitz Tracking Weather Satellites
  John Polhamus's tent Tropical Cyclone Centre 
  Joint Agricultural Weather Facility Tropical Prediction Center
  Joint Organization for Solar Observations TwinOaks Observatory 
  Jonathan McDowell's weekly space report U.S. Air Force
  Jon's Astronomy Site U.S. Army
  Juan Herrero U.S. Interactive Climate Pages
  Juan Menendez U.S. Navy
  Junk Bond Observatory U.S.A/International Weather
  Jupiter UC Davis Atmospheric
  KAC Observatory    UCAR members
  KAUZ (Wichita Falls) First Weather UCAR Weather Data Server
  Kavouras, Inc. UCAR/NCAR Gopher
  KCNC-TV (Denver) StormCenter 4 Unconventional Observ
  KCRG-TV - First Alert Storm Uni. de Madrid Facultade de Ciências Fisicas 
  Keep the Search for NEOs Alive! UNICAMP-Universidade Estadual de Campinas 
  Keith Duda Unidata Gopher
  Ken Dauzat Optical UNIDATA Information Server
  Kenyon Astrophys. Observ UNIDATA McIdas Demonsration Server
  KFOR-TV - Warn Storm Team Universal Weather & Aviation, Inc.
  KGAN-TV (Cedar Rapids) Weather Universidad de Chile 
  KGTV-TV (San Diego) Weather Universite Bordeaux 
  KHOU-TV (Houston) Dr. Neil Frank's Universite du Quebec a Montreal Science
  KHSL-TV (Chico/Redding) Weather Page Universities Space Research Assoc.
  Kids as Global Scientists University College London 
  Kiesel Park Observatory University of Alabama - Huntsville
  KIVI-TV (Boise) Weather University of Alabama Weather
  KJRH-TV (Tulsa) Storm Team Weather University of Alaska - Fairbanks Atmospheric
  KKTV-TV (Colorado Springs) Weather University of Alaska - Fairbanks Satellite
  KLAS-TV (Las Vegas) Weather University of Amsterdam 
  KLTV-TV (East Texas) Weather University of California - Davis Meteorology
  KNBC-TV (Los Angeles) Weather University of California - Los Angeles Science
  KOCO-TV (Oklahoma City) Weather University of California-Planetary Physics 
  KOIN-TV (Portland) WeatherCenter-6 University of Colorado at Boulder 
  KOLO-TV (Reno) 5-Day Forecast University of Colorado Weather 
  KOMO-TV (Seattle) Weather University of Freiburg 
  Kotipu Place Observatory University of Hawaii Meteorology Department
  KPIX-TV (San Francisco) Live Weather University of Hawaii Sat Imagery
  KSNW-TV (Wichita, KS) Virtual Weather University of Hawaii Satellite Oceanography
  KSTW-TV (Seattle) Channell 11 Weather University of Hawaii Storm Tracks
  KSTW-TV (Seattle, WA) WeatherDude University of Hawaii Weather Gopher
  KTVX-TV (Salt Lake City, UT) Weather University of Illinois CoVis Geosciences
  Kunihiko Okano University of Illinois Daily Planet
  KVOA-TV (Tucson, AZ) Eyewitness University of Illinois Weather Machine
  KWTV-TV (Oklahoma City) Weather University of Illnois Weather
  KXAN-TV (Austin, TX) First Warning University of Kansas Atmospheric Science
  KXAS-TV (Fort Worth, TX) Weather University of Kentucky Agricultural Weather
  La Scala Observatory University of Kentucky Weather Gopher
  La Scala Observatory University of Maryland Meteorology
  Laurent CORP University of Maryland-Planetary Data
  Le Sueur Manf. Co. University of Miami Sea-Surface Temperature
  Lehigh Valley University of Michigan Weather
  Lighting and Storm Imagery University of Michigan Weather Gopher
  Littlebear Observatory University of Michigan Weather Homepage
  LNA - Laboratório Nacional de Astrofísica University of Minnesota Weather Gopher
  Lon Dittrick's Flip University of Missouri Atmospheric Science 
  Long Island Weather Homepage University of Nebraska-Lincoln Weather
  Lookum Observatory University of North Carolina - Asheville Web
  Louisiana State University  University of North Carolina - Charlotte
  Louisiana State University Earth Scan University of Notre Dame 
  Lunar and Planetary Institute University of Oklahoma - College of Geosciences
  LX200 piers University of Oregon Current Weather Page
  Lyndon State College Weather University of Rhode Island Sea-Surface Archive
  Majden Observatory University of Technology Munich 
  Maple Ridge Observatory University of Utah Weather Homepage
  Marcel Fontaine University of Virginia Weather Homepage
  Marine Weather.Com University of Washington Weather Page
  Mark Kaye University of Wisconsin - Madison Tropical
  Mark Park University of Wisconsin - Milwaukee
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