Astrophysics (index)about

dark sky

(sky with limited light pollution)

The term dark sky refers to sky without light pollution, e.g., away from cities and other sources of visible light, thus ideal for astronomical observation. Some sites (dark-sky sites) are set aside for this quality, often classified as a dark-sky park, a dark-sky preserve or a dark-sky reserve. Historical observatories have sometimes relocated from urban or suburban regions to such places. The region around an observatory may be declared to be dark-sky sites, much as the area around the Green Bank Telescope is declared to be radio-quiet.


(visible light,astronomy)
http://en.wikipedia.org/wiki/Dark-sky_preserve
http://en.wikipedia.org/wiki/Light_pollution

Referenced by:
Discovery Channel Telescope (DCT)

index