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McMath–Pierce solar telescope
The McMath–Pierce solar telescope is a 1.6 m f/54 reflecting solar telescope at Kitt Peak National Observatory in Arizona, USA. The building was designed by Myron Goldsmith and built in 1962. It is the largest telescope of its kind in the world and is named for astronomers Robert McMath and Keith Pierce. At the dedication in 1962, Dr. Waterman read a letter〔(【引用サイトリンク】title=NSO/KP History of the MP Facility )〕 from President Kennedy starting with:
==Construction==
The telescope contains a heliostat at the top of its main tower which focuses the sun's light down a long shaft. The distinctive diagonal shaft continues underground, where the telescope's primary mirror is located. The theoretical resolution of this main telescope 0.07 arcsec, although this is never reached because atmospheric distortions degrade the image quality severely. The image scale is 2.50 arcsec/mm at the image plane.
In addition to this 1.6-meter primary mirror, there are also an East- and West-auxiliary telescope which are completely independent of the main telescope. These two auxiliary telescopes both have a 0.91-meter heliostat which are located beside the main heliostat. These auxiliary telescopes have a slightly shorter focal length and f-numbers of 50 and 44. The resolution of the auxiliary telescopes is 5.11 arcsec/mm and 5.75 arcsec/mm.
The enclosure of the telescope was designed and engineered by the Chicago office of Skidmore, Owings and Merrill.〔(【引用サイトリンク】title=McMath–Pierce Solar Telescope )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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