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    Cernan Earth and Space Center

    Technical Specifications

    Building:
    10,800 square feet, including dome theater, exhibit lobby, gift shop, four offices, four classrooms, storage, circulation and mechanical space. Cost: $1.1 million. Opened June 23, 1984.
    Projection Dome:
    44-foot diameter dome subtending 165 degrees from center of curvature, tilted 25 degrees. Projection surface of vinyl-clad aluminum is 23 percent void for acoustic transparency and 36 percent reflective to minimize transreflectance. Unbeveled lap seams. Dome is suspended from roof. Manufactured by Northern Illinois Engineering of Schaumburg, Illinois.
    Seating:
    Epicentric seating for 100, tiered 25 degrees, manufactured by Massey Seating of Nashville, Tennesse.
    Star Projector:
    Spitz model 512, manufactured by Spitz Incorporated of Chadds Ford, Pennslyvania.
    3-Screen Video System:
    3 NEC NP41 DLP Video Projectors within douser enclosures equipped with computer-controlled shutter mechanisms that interface with East Coast Control Systems theater automation system. Programs for the three-screen system are produced on a PC-based workstation using Sony Vegas Movie Studio Pro software that renders MPEG-2 video files to 3 Alcorn McBride digital video storage units, one each for left, center, and right screens.
    35 mm Film Projector:
    Christie 35mm film projector with 4500-watt xenon light source, 15-element ultrawide-angle projection lens, hydraulic lift, Potts Alpha film platter system and stereo optical sound.
    Video Projectors:
    Sony VPH-1040Q color video projector with video and RGB digital inputs.
    Sony VPL-S900U data projector with video and RGB digital inputs, connected to Omni Tech PC with high-speed Internet access and Microsoft PowerPoint software.
    Video Sources:
    Sony VO5600 3/4" stereo VTR, Panasonic AG1730 HiFi stereo VHS VCR, Panasonic DVD player, and Sony LDP1000 videodisc player.
    Laser Projector:
    Voyager V-17OWC Laser Display System, manufactured by Aura Technologies Inc. of Chicago, Ill.  Individual components include the following:
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    Color Pro 3.0 watt "white light" argon-krypton ion laser, generating a full color spectrum from deep red (676 nm) through ultra blue (457 nm), manufactured by Lexel Laser, Inc. of Fremont, Calif.  Utilizing a poly-chromatic acousto-optical RGB color modulation system, it can display over 18 quintillion (1.8 x 1019) color combinations.
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    High-speed moving magnet galvanometer-based graphical scanning system, which is capable of a scan rate of over 30,000 points per second.
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    DMX-512 (lighting industry standard) automated control system software protocol.
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    26 special optical effects, using state-of-the-art holographic diffraction gratings, spatial light modulators, and wave front distortion filters.
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    Precision digital optical special effects controls, driven by six microprocessors utilizing 99 discrete transistor circuits with pulse width modulator motor speed controls and stepper motor positioning.
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    Twin remote fiber optic driven remote scanning devices containing moving iron galvanometer mechanical beam deflection technology for aerial laser beam effects in full color.
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    32-channel operator control console with auto/manual performance control.
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    8-channel, 20-bit digital playback system using S-VHS tape storage.
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    Laser display system can be either fully automated or overridden by manual operator control at any time.
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    Theatrical hazer (fog machine) used to add scattering dispersal effects into the atmosphere enhancing the aerial laser beam effects.
    Automation System: Universal Theater Control System, featuring Hercules central processor, Aquila time controller, Gemini general purpose controllers, and Cygnus manual controller. Manufactured by East Coast Control Systems of Bigler, Pennslyvania.
    Sound System:
    (6) JBL VRX932LAP 12-inch two-way line-array speakers.
    (2) JBL VRX918SP 18-inch powered flying subwoofer speakers
    Soundcraft FX16ii 16-channel Mixer.
    Installed in June of 2013 by Allen Visual Systems, Incorporated of Buffalo Grove, Illinois.
    Digital Audio Sources:
    Fostex D-108 8-track digital recorder. FostexD-2424LV 24-track digital recorder.
    Other Projectors:
    Nine types of slide and special effects projectors. 25 Kodak Ektagraphic slide projectors including two five-projector seamless panorama systems, one 16mm film projector, special effects including pan-tilt-zoom, orbiting comet, rotating earth, meteor shower, space shuttle launch, various cloud effects, color wheels, strobes and mini-strobes.