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decrease in wavelength, with a corresponding increase in frequency, of an electromagnetic wave, tähe spektris olevate joonte nihkumine selle sinise otsa poole, mis näitab, et täht läheneb meile
blue shift . Kosmoseteaduse ja -tehnoloogia terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kth/blue%20shift/1/eng (19.06.2026)