天银机电：公司的控股子公司天银星际深度参与商业航天产业

Group 1 - The core viewpoint of the article highlights that Tianyin Electromechanical's subsidiary, Tianyin Interstellar, is a key supplier in the domestic commercial satellite market, actively participating in the commercial aerospace industry [1] - Tianyin Interstellar leverages over 20 years of space technology accumulation from Tsinghua University to produce star sensors, which are critical components for navigation systems in spacecraft and aircraft [1] - The company has developed various specialized equipment, including star simulators, solar simulators, observation turntables, and attitude controllers, as well as nano-satellites and their complete physical ground experimental systems [1] Group 2 - The star sensor produced by Tianyin Interstellar provides high-precision measurement data for attitude control and astronomical navigation, primarily used in satellites, drones, and airships [1] - The company holds a competitive advantage in the domestic commercial satellite market, particularly in providing precise attitude control and network support for satellite constellations that contribute to space computing capabilities [1]