Multi-mirror telescope - Multi-mirror telescope

Japanese: マルチミラー望遠鏡 - マルチミラーぼうえんきょう（英語表記）multiple mirror telescope

Also called MMT. Astronomical telescopes are devices that collect light from faint celestial objects, and their light-gathering power is proportional to the square of their aperture. Large-aperture telescopes are difficult to manufacture, so the main mirror surface is divided into multiple pieces and the images from each mirror are optically superimposed to increase the light-gathering power. This is called a multi-mirror telescope, and several attempts have been made in the past. The one currently known as MMT was built on Mount Hopkins in collaboration with the Smithsonian Observatory and the University of Arizona in the United States, and consists of six 1.8m reflecting telescopes arranged in a hexagonal shape, with six images synthesized in the center.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

MMTともいう。天体望遠鏡は微光の天体からの光を集める装置であり，集光力は口径の2乗に比例する。大口径望遠鏡は製作上種々の困難があるので，主鏡面を複数個に分割し各鏡からの像を光学的に重ね合わせて集光力を増大させる。これをマルチミラー望遠鏡といい過去にもいくつかの試みが行われた。現在MMTと呼ばれるものはアメリカのスミソニアン天文台とアリゾナ大学の協同でホプキンス山に建設されたもので，6本の1.8m反射望遠鏡を六角形状に配置し中央で6個の像の合成を行う。

出典　株式会社平凡社世界大百科事典第２版について　情報

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