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1964 TW1. Discovered 1964 Oct. 9 at the Purple Mountain Observatory at Nanking.
Named for Zhang Heng (78–139), a prominent scientist of the eastern Han dynasty who devised and constructed armillary spheres and seismographs. He also invented a celestial sphere driven by water power that is in many respects the forerunner of the modern planetarium. (M 4419)
Zhang Heng (or Chang Heng) is also honored by a lunar crater.
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(2003). (1802) Zhang Heng. In: Dictionary of Minor Planet Names. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-29925-7_1803
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DOI: https://doi.org/10.1007/978-3-540-29925-7_1803
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