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a.1.Pertaining to, or invented by, Christian Huyghens, a Dutch astronomer of the seventeenth century; as, the Huyghenian telescope.
Huyghenian eyepiece
See under Eyepiece.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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He generally preferred Monocentric eyepieces when observing variables as they gave sharper stellar images and a blacker background than the standard Huyghenian eyepieces, which sometimes resulted in a gain of half a magnitude in limiting magnitude.
Students at ISNS also honed their skills in performing and speaking in pubic through their involvement in the Eurodelphian and Huyghenian literary societies.