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Directory ranking



name url country hits
McDonald Observatory http://mcdonaldobservatory.org/ None 2353
  categories: Observatories
Center for Backyard Astrophysics http://cbastro.org/ None 1778
  categories: Astronomy
AAVSO: American Association of Variable Star Observers http://www.aavso.org/ None 1243
  categories: Astronomy
Stardate Online http://stardate.org/ None 1247
  categories: Astronomy
Universe Today http://www.universetoday.com/ None 1409
  categories: Astronomy
Blue Sky Observatory Clear Sky Clock http://www.cleardarksky.com/c/BlSkyObNHkey.html?1 None 1923
  categories: Weather
Space Weather http://www.spaceweather.com/ None 1155
  categories: Weather
Christa McAuliffe Planetarium http://www.starhop.com/ None 1535
  categories: Observatories
UNH Observatory http://physics.unh.edu/observatory None 1950
  categories: Observatories

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