they both have 1000x more sunny days than Melbourne. Mildura / Broken Hill climate could be considered almost perfect for Astronomy:
-Minimal air pollution / aerosols in the atmosphere = better transparency
-very dark skies
-humidity is often low = minimal dew
-huge number of clear days/nights
-smoke is very rare
-approx 149 perfectly clear days / 60 cloudy days a year. Melbourne is the exact opposite.
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