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meridian circle
meridian circle A telescope with an accurately calibrated circle which is constrained to rotate in the plane of the meridian about an east-west horizontal axis. The altitude at which the telescope is aimed at the time of an observation is obtained by measuring the circle divisions with a series of fixed microscopes, usually four or six. See also Transit Circle.
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"meridian circle." A Dictionary of Astronomy. 1997. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "meridian circle." A Dictionary of Astronomy. 1997. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O80-meridiancircle.html "meridian circle." A Dictionary of Astronomy. 1997. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-meridiancircle.html |
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meridian circle
meridian circle see transit instrument . |
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Cite this article
"meridian circle." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "meridian circle." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1E1-X-meridian-c.html "meridian circle." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-meridian-c.html |
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