Kechun Shen

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In this paper, we present 112 new CCD astrometric positions of Nereid, the second and faint satellite of Neptune (m v 19). We observed this small satellite in the 2006-2007 period with the 1m and the 2.16m telescopes of Xinglong Station near Beijing, both equipped with large CCD detectors of 1340 × 1300 and 2048 × 2048 pixels, respectively. The high-density(More)
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