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We report the results of polarimetric observations of the total solar eclipseof 21 August 2017 from Rexburg, Idaho (USA). We use three synchronized DSLRcameras with polarization filters oriented at 0{\deg}, 60{\deg}, and 120{\deg}to provide high-dynamic-range RGB polarization images of the corona andsurrounding sky. We measure tangential coronal polarization and vertical skypolarization, both as expected. These observations provide detailed detectionsof polarization neutral points above and below the eclipsed Sun where thecoronal polarization is canceled by the sky polarization. We name these specialpolarization neutral points after Minnaert and Van de Hulst.

Detection of polarization neutral points in observations of the combined corona and sky during the 21 August 2017 total solar eclipse