双星轨道III。在这本书中，我们重温了特威杜姆和特威迪的著名案例，
Binary Star Orbits. III. In which we Revisit the Remarkable Case of Tweedledum and Tweedledee
摘要：
在上个世纪中叶，光学干涉测量最具挑战性的两个对象是宽视觉双星STF2375（= WDS 18455 + 0530 = HIP 92027 = ADS 11640）的近距离组件（FIN 332）。发现宽对中的每个分量都有大小、位置角和间隔大致相同的子分量，因此，伟大的视觉干涉测量师威廉·S·威廉（William S. William）将其命名为“Tweedledum和Tweedledee”。1953年的芬森。他们后来被W.H.列进了"使观察家烦恼的双星"名单。van den Bos（1958 a）.虽然散斑干涉测量已经收获了丰富的收获调查密切的干涉测量二进制的芬森，“Tweedles”继续既着迷和激怒，由于双方的密切对的巨大相似性，以及固有的180度的模糊性与干涉。对该系统所有已发表观测的详细分析揭示了几个错误，在此进行了纠正，从而可以确定这些解决象限模糊的轨道要素。一个独特的软件过滤器的开发，允许从档案ICCD散斑数据从1982年的子阵列被重新减少。这些数据，结合2001年至2009年从NOAO 4米望远镜获得的新的和未发表的观测结果，威尔逊100英寸望远镜和海军天文台旗杆站61英寸望远镜以及高质量的未分辨测量都允许正确的轨道被确定。多重系统的共面性也进行了研究。
英文摘要：
Two of the most challenging objects for optical interferometry in the middle of the last century were the close components (FIN 332) of the wide visual binary STF2375 (= WDS 18455+0530 = HIP 92027 = ADS 11640). Each component of the wide pair was found to have subcomponents of approximately the same magnitude, position angle and separation and, hence, were designated by the tongue in cheek monikers "Tweedledum and Tweedledee" by the great visual interferometrist William S. Finsen in 1953. They were later included in a list of "Double Stars that Vex the Observer" by W.H. van den Bos (1958a). While speckle interferometry has reaped a rich harvest investigating the close inteferometric binaries of Finsen, the "Tweedles" have continued to both fascinate and exasperate due to both the great similarity of the close pairs as well as the inherent 180 degree ambiguity associated with interferometry. Detailed analysis of all published observations of the system have revealed several errors which are here corrected, allowing for determination of these orbital elements which resolve the quadrant ambiguity. A unique software filter was developed which allowed subarrays from archival ICCD speckle data from 1982 to be re-reduced. Those data, combined with new and unpublished observations obtained in 2001-9 from NOAO 4m telescopes, the Mt. Wilson 100in telescope and the Naval Observatory Flagstaff Station 61in telescope as well as high quality unresolved measures all allow for the correct orbits to be determined. Co-planarity of the multiple system is also investigated.
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