Speckle Interfermometry at the U.S. Naval Observatory. XVII.

摘要

The results of 3362 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 1970 mean relative positions and range in separation from 0. 78 to 72. 17, with amean separation of 14. 76. This is the 17th in this series of papers and covers the period 2010 January 6 through December 20. Also presented are 10 pairs that are resolved for the first time.