Astronomia

Foto do dia
Astronomia On-line
Portal do Astronomo
Centro Astrofisica Universidade do Porto
Observatório Astronómico de Lisboa
Ag�ncia Espacial Europeia
Astronomia e Astrofisica
Astronomia para todos
Observatório Europeu do Sul
NASA
Exoplanetas (NASA)
Eu sou Astrónomo
Objectos Perto da Terra (c/ Previs�o)
Mapa interativo de lixo espacial em �rbita � volta da Terra
Association of Lunar & Planetary Observers
Instituto Astronomia - Mexico
Documentação Astrored
International Meteor Organization
Harvard-Smithsonian Center for Astrophysics (CfA)
Departamento de Astronomia da Universidade de Toronto
German Astronomical Directory
CfA - Center for Astrophysics
Information Bulletin on Variable Stars
American Astronomical Society (AAS)
Instituto de Astrofísica de Canarias
Berkeley Illinois Maryland Association (BIMA)
Brown University Planetary Geology
Lunar and Planetary Laboratory da Universidade do Arizona (Tucson, Arizona, EUA)
SETI Institute
U.S. Naval Observatory
American Association of Variable Star Observers (AAVSO)
Visual Satellite Observers
Astra's Star Gate
Aurora Page
NASA solar-eclipse bulletins
Space Archive

Astrophysical Data System (ADS)
NASA/IPAC Extragalactic Database (NED)
National Space Science Data Center (NSSDC)
Planetary Data System (PDS)
Strasbourg Astronomical Data Center
Astronomical Applications Department
Astronomy Now
Space News
StarDate On Line

Astrophysical Data System (ADS)
NASA/IPAC Extragalactic Database (NED)
National Space Science Data Center (NSSDC)
Planetary Data System (PDS)
Strasbourg Astronomical Data Center
Astronomical Applications Department
Astronomy Now
Space News
StarDate On Line