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    ... was more than 12 deg below the horizon, reaching 20.7 mag/square-arcsec during astronomical darkness...
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  2. 2
    ... the Sun was more than 12° below the horizon, reaching 20:7 mag arcsec -2 during astronomical darkness...
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    Article in Journal/Newspaper
  3. 3
    ... was more than 12 deg below the horizon, reaching 20.7 mag/square-arcsec during astronomical darkness...
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    by Chris M. Cannon
    Published 2022
    ... on Northern Dene (Athabascan) astronomical and sky-related knowledge. Additional data pertaining...
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    Dataset
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