Welcome to CSOD, my digital astronomical journal.

Name: Math Heijen
Location: 50.55N 06.03E
Landgraaf, Netherlands
Hobbies: reading, hiking, birding and backyard astronomy.

Websites:
Backyard-astro.com
The Hiking Moose

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• About this blog
  
• Atmospheric optics
  
• Birding
  
• Books and magazines
  
• Deepsky
  
  • Deepsky binocular
    
  • Deepsky log
    
  • Deepsky TOP 100
    
  • Deepsky observing
    
• Equipment
  
• General
  
• Hot links!
  
• Moon
  
  • Lunar basics
    
  • Lunar geology
    
  • Lunar log
    
  • Lunar scraps
    
• Planets
  
• Solar sytem scraps
  
• Space Missions
  
• Sun
  
  • Solar basics
    
  • Solar log
    
  • Solar scraps
    

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