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

Thompson Refractor
subject			fact

Thompson Refractor	has mounting manufacturer Grubb
	has longitude 0° 20' E
	has latitude 50° 52' N
	has lens maker Grubb
	has aperture 0.66 m
	has focal ratio f/10.4
	has altitude 34 m
	has owner Royal Greenwich Observatory
	has creation date 1897
	has location Herstmonceux, Sussex, England
	is an instance of refractor
	is an instance of German equatorial telescope
German equatorial telescope	has mounting German equatorial
refractor	has lens type doublet
	has optical design visual refractor
optical telescope	has reference astroweb
Earth based telescope	has temperature ambient
telescope	has wavelength sensitivity
	has angular resolving power
	has effective diameter
	has operator
	has purpose observe celestial objects
artifact	has creator
physical object	has angular momentum
	has mass
	has velocity
	has momentum
	has volume
	has extent
	has material

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