文章基本信息

标题：Speckle Interferometry at the U.S. Naval Observatory. XXII.
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作者：Brian D. Mason ; William I. Hartkopf
期刊名称：The Astronomical journal
印刷版ISSN：0004-6256
电子版ISSN：1538-3881
出版年度：2017
卷号：154
期号：5
页码：1-11
DOI：10.3847/1538-3881/aa8038
语种：English
出版社：American Institute of Physics
摘要：The results of 4747 intensified CCD observations of double stars, made with the 26 inch refractor of the U.S. Naval Observatory, are presented. Each observation of a system represents a combination of over 2000 short-exposure images. These observations are averaged into 2667 mean relative positions and range in separation from 0328 to 959, with a median separation of 8673. Eight orbits are improved. This is the 22nd in this series of papers and covers the period 2016 January 4 through 2016 December 29.
关键词：binaries: general ; binaries: visual ; stars: individual (40 Eri BC) ; techniques: interferometric