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 Browsing Astronomical Objects 
Aladin sky atlas
 Astronomical Objects in General 
Constellations Galaxies Messier Objects..... Nebulae, Planetary Supernovae Others.....
 Special Objects 
Meteorites
 Solar System..The Planets
The Sun Mercury Venus Earth • Earth's Moon Mars Jupiter Saturn Uranus Neptune Minor Planets
 Famous Comets
Halley
 Instruments
Hubble Space Telescope Radio-Telescopes Reflector Refractor
 Famous Astronomical Observatories
A - Z Mt. Palomar Mauna Kea: Keck
 Years...
2005: World Year of Physics (WYP) 2009: International Year of Astronomy (IYA)
 Eclipses and Transits
Solar eclipses Lunar eclipses Transits of Mercury&Venus
 Congresses of astronomical interest
International Astronautical Congress (IAF)
 Astronomical Timeline
Historic events: before 1900 Recent events: since 1900
 Famous Astronomers on stamps, covers and postmarks 
100–180 Claudius Ptolemäus 1473-1543 Nikolaus Kopernikus 1546-1601 Tycho Brahe 1548-1600 Giordano Bruno 1564-1642 Galileo Galilei 1571-1630 Johannes Kepler 1642-1727 Isaac Newton 1656-1742 Edmond Halley 1738-1822 Wilhelm Herschel 1879-1955 Albert Einstein 1889-1953 Edwin Hubble 1942-now Stephen Hawking
 more Astronomers on stamps, covers or postmarks 
A - Z
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A - Z
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 Astronomical Institutes in Europe
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