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In astronomy, a blueshift is a decrease in electromagnetic wavelength caused by the motion of a celestial object toward an observer. Blueshift or blue shift may also refer to: * "Blue Shift", a song by Hawkwind from their 1993 album ''Electric Tepee'' * "Blue Shift" (short story), a science fiction short story by Stephen Baxter * Blueshifting, an information technology term defined in Redshift (theory) * ''Half-Life: Blue Shift'', a computer game * Hypsochromic shift, a change in spectral band position to a shorter measured wavelength also called a ''blue shift'' == See also == * Doppler effect 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Blueshift (disambiguation)」の詳細全文を読む スポンサード リンク
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