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physical object > artifact > device > instrument > telescope > electromagnetic telescope > Earth based telescope > equatorial telescope > German equatorial telescope > Thompson Refractor

Thompson Refractor comparison table

Subject	has reference	has location	has owner	has latitude	has lens maker	is a kind of	has optical design	has temperature	has altitude	is an instance of	has focal ratio	has aperture	has mount	has lens type	has definition	has mounting manufacturer	has longitude	has creation date
German equatorial telescope				in degrees, minutes, seconds (N or S)		equatorial telescope		ambient	height above sea level in meters				German equatorial			the person, company or institution that constructed the mounting	in degrees, minutes, seconds (E or W)
refractor	astroweb				the person, company or institution that created the lens	optical telescope	visual refractor							doublet	A device for gathering and amplifying light by means of a lens.
Thompson Refractor	astroweb	Herstmonceux, Sussex, England	Royal Greenwich Observatory	50° 52' N	Grubb		visual refractor	ambient	34 m	German equatorial telescope	f/10.4	0.66 m	German equatorial	doublet		Grubb	0° 20' E	1897

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