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physical object > artifact > device > instrument > telescope > electromagnetic telescope > Earth based telescope > equatorial telescope > Horseshoe equatorial telescope > 3.5-meter Telescope

3.5-meter Telescope
subject			fact

3.5-meter Telescope	has mounting manufacturer Voith, Heidenheim; Zeiss (Ober.)
	has longitude 2° 32' W
	has latitude 37° 13' N
	has mirror maker Zeiss (Ober.)
	has mirror type Zerodur
	has aperture 3.50 m
	has focal ratio f/3.5, 3.9, 10, 35
	has operator German-Spanish Astronomical Center
	has altitude 2168 m
	has owner Calar Alto Observatory
	has creation date 1984
	has location Calar Alto, Spain
	is an instance of Ritchey-Chrétien
	is an instance of optical telescope
	is an instance of Horseshoe equatorial telescope
Horseshoe equatorial telescope	has mounting Horseshoe equatorial
Ritchey-Chrétien	has secondary mirror shape convex hyperboloid
	has primary mirror shape concave hyperboloid
	has optical design Ritchey-Chrétien
optical telescope	has optical design
	has reference astroweb
reflector	has mirror diameter equal to aperture (except for Schmidt which has aperture smaller than mirror diameter)
Earth based telescope	has temperature ambient
telescope	has wavelength sensitivity
	has angular resolving power
	has effective diameter
	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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