New CCD photometry of asteroid(1028)Lydina

作     者：Yi-Bo Wang Xiao-Bin Wang 

作者机构：National Astronomical Observatories/Yunnan ObservatoryChinese Academy of SciencesKunming 650011China Key Laboratory for the Structure and Evolution of Celestial ObjectsChinese Academy of SciencesKunming 650011China Graduate University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2012年第12卷第12期

页      面：1714-1722页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：funded by the National Natural Science Foundation of China(Grant Nos.10933004 and 11073051) 

主　　题：asteroids：photometric observation：rotation period pole orienta  tion：tri axial ellipsoid 

摘      要：New CCD photometric observations for asteroid（1028）Lydina,carried out with the 1-m and 2.4-m telescopes at Yunnan Observatory from 2011 December 19 to 2012 February 3,are *** the new light curves,the rotation period of 11.680±0.001 hours is derived with the Phase Dispersion Minimization（PDM） *** addition,using the Amplitude-Aspect method,the elementary results of the pole orientation of asteroid（1028）Lydina are obtained：λp=111°＋4°-4°,βp=31°＋4°-5°. Meanwhile,the axial ratios of the tri-axial ellipsoid are estimated：a/b=1.77＋0.10 -0.08 and b/c=1.17＋0.07 -0.09 .