講演情報
[PO2-19]System Architecture of Nagoya City Science Museum Planetarium
*Junya Inagaki1, Katsuhiro Mouri1, Manabu Noda1, Daisaku Mochida1, Asami Nakashima1, Sachi Takaba1, Mikito Kohno1, Megumi Takenaka1 (1. Nagoya City Science Museum (Japan))
キーワード：
hardware、software、equipment upgrade
Nagoya City Science Museum Planetarium is one of the world’s largest, with a 35-meter dome. It uses a hybrid system: the ZEISS UNIVERSARIUM Model IX opto-mechanical planetarium plus a three-layer all-sky system (2x Media Globe Σ SE: SkyExplorer, 1x Amateras Server) and a panoramic system.
The all-sky system has three layers selectable by required brightness and spatial resolution. The low-luminance layer, the Milky Way System, uses two 8K fisheye projectors coordinated with the opto-mechanical instrument to display the Milky Way based on Gaia data and to overlay constellation illustrations and lines. It always operates together with the opto-mechanical projector. The high-luminance All-Sky System employs six 8K projectors for bright all-sky scenes such as spaceflight simulations. When ultra-high brightness is required for events and special programs, the projection system with two high-brightness laser projectors is used as a third all-sky layer.
The Panoramic System uses eight 4K projectors around the dome for environmental scenes near the horizon, such as twilight, dawn, and landscapes. Auxiliary systems include a laser display for music shows, guidance projectors, and auxiliary projectors for live commentary. Program production and testing are supported by an internal 5-meter dome studio and multiple software platforms. The studio uses various 3D and planetarium software, exporting content between systems to achieve optimal visuals on the main dome.
These components, together with lighting and multi-speaker audio, have been upgraded. Since 2021, comprehensive upgrades have been carried out on a five-year cycle, with the most recent upgrade implemented between January and March 2026. In this presentation, we summarize the current system architecture and upgrade history and discuss how this layered configuration can serve as a practical model for more effective use of planetarium facilities.
The all-sky system has three layers selectable by required brightness and spatial resolution. The low-luminance layer, the Milky Way System, uses two 8K fisheye projectors coordinated with the opto-mechanical instrument to display the Milky Way based on Gaia data and to overlay constellation illustrations and lines. It always operates together with the opto-mechanical projector. The high-luminance All-Sky System employs six 8K projectors for bright all-sky scenes such as spaceflight simulations. When ultra-high brightness is required for events and special programs, the projection system with two high-brightness laser projectors is used as a third all-sky layer.
The Panoramic System uses eight 4K projectors around the dome for environmental scenes near the horizon, such as twilight, dawn, and landscapes. Auxiliary systems include a laser display for music shows, guidance projectors, and auxiliary projectors for live commentary. Program production and testing are supported by an internal 5-meter dome studio and multiple software platforms. The studio uses various 3D and planetarium software, exporting content between systems to achieve optimal visuals on the main dome.
These components, together with lighting and multi-speaker audio, have been upgraded. Since 2021, comprehensive upgrades have been carried out on a five-year cycle, with the most recent upgrade implemented between January and March 2026. In this presentation, we summarize the current system architecture and upgrade history and discuss how this layered configuration can serve as a practical model for more effective use of planetarium facilities.