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Light pollution
- 13. What is light pollution?
Glare: too much background light tat reduces visibility
- 14. What is light pollution?
Light Trespass: light spills into an area where it is unneeded
- 15. What is light pollution?
Sky Glow: upward directed light reflects on particles in the
sky reducing visibility of stars
- 21. Night Sky Simulator
Without light pollution
(Scotland)
Low light pollution
Moderate light pollution
High light pollution
(London)
http://www.need-less.org.uk
- 22. Without light pollution
(Scotland)
Low light pollution
Moderate light pollution
High light pollution
(London)
Night Sky Simulator
- 23. Without light pollution
(Scotland)
Low light pollution
Moderate light pollution
High light pollution
(London)
Night Sky Simulator
- 24. Without light pollution
(Scotland)
Low light pollution
Moderate light pollution
High light pollution
(London)
Night Sky Simulator
- 31. GLOBE AT NIGHT
Citizen science program
to record the brightness of the night sky
http://www.globeatnight.org