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atmospheric dispersion corrector
An optical device usually comprising two thin prisms which can rotate to compensate for the elongation of a star image caused by the wavelength dependence of the refractive index of air.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Astronomy
- Category: General astronomy
- Company: Caltech
- Product:
- Acronym-Abbreviation:
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