Sky Conditions and Scales

Protect our night skies:
The International Dark-Sky Association – Non-profit organization fighting to preserve the night, protecting wildlife, cutting energy waste and stopping light pollution

Estimating Limiting Magnitude – by Nine Planets

Antoniadi Seeing Scale – Seeing scale used for planetary and lunar observing.

Clear Sky Chart – Find out what your sky conditions are in your area.

Mt. Wilson Solar Seeing Scale – Seeing conditions for solar observing.

Pickering Scale – Pickering scale of rating atmospheric turbulence, hosted by Damian Peach’s site.

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~ by Erika Rix on February 7, 2011.

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