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    Bortle 4

    Port Crescent Dark Sky Preserve

    Michigan, United States44.0000°, -83.0700°Peak altitude 17°11.6h peak darknessBest: May, Jun, Jul, Apr, Aug, Mar, Sep, Feb, Oct

    Milky Way Calendar

    Nightly visibility ratings for Port Crescent Dark Sky Preserve

    Recognition

    Year designated

    2012

    Recognized by

    Michigan legislation

    DSAG class

    2a

    Area

    49 ha

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