freeastrophotography
Clear Dark Skies
Moonless nights with crystal-clear skies for deep-sky photography
What this template looks for
Rule conditionsAlways Required
Astronomical Night
duringany occurrence
Total Cloud Coverage
at most20%
Visibility
at least12000m
Precipitation Chance
at most10%
Either (Option Group 1)
Moon Illumination
at most35%
or
Moon Altitude
at most10°
These conditions work together to identify the ideal weather windows for this photography style.
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