Projects/Skypaint

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Background

NightHawkInLight's video that inspired this

Results

The current ( April 2024 ) batches have shown about 11 F below ambient temperature at night, or if shaded in daytime ( but still exposed to the sky as much as possible ). That difference is highly dependent on the particular insulated test box of course, it is not a comparable number to other reports that used a different test apparatus.