| - | Co-operative, Local Astronomy Organizations or Personal Astronomy Homepages |
| - | Research Institutions |
| - | Amateur Researches |
| - | Images or Animations |
| - | Educational Institutions or Sites |
| - | Space Agencies or Space Centres |
| - | Amateur, Public or Private Observatories |
| - | Ground-based Telescopes |
| - | Space Explorations |
| - | Astronomical Equipment |
| - | Astronomy Magazines |
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