Bouguer's halo

noun Bou·guer's halo \(ˈ)bü¦ge(ə)rz-\

Definition of Bouguer's halo

  1. :  a faint white halo of about 32 degrees minimum radius around the antisolar point

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Origin and Etymology of bouguer's halo

after Pierre Bouguer †1758 French mathematician


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a rounded knoll or a ridge of ice

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