KnowraAtmospheric refractionLinked fromLinked fromThe 25 pages that link to Atmospheric refraction, each with the reason it gives.All 25Broader topic 1Related 21Compared with 3Gravitational lensCompared with: It also shifts apparent positions, but arises from air rather than spacetime curvature.Atmospheric extinctionCompared with: Refraction shifts apparent positions; extinction changes how much light arrives.Telluric contaminationCompared with: It is another atmospheric influence on observations, but changes apparent positions rather than adding spectral features.