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Determination of highly accurate proper motions for 32 Hipparcos stars from photographic plates.

Wang, S.; Wang, J.; Jin, W. +1 more

The authors have reduced 70 exposures on 32 photographic plates taken in four sky areas around the radio source 0316+413, the galaxy NGC 7302, the Pleiades astrometric standard region, and some other objects. The plates were obtained with the 40-cm astrographic refractor at the SheShan(Zô-Sé) station of the Shanghai Observatory. Using the PPM cata…