Speckle Interferometry at the U.S. Naval Observatory. XXIII
Autor: | Mason, Brian D., Hartkopf, William I., Urban, Sean E., Josties, Jordan D. |
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Rok vydání: | 2018 |
Předmět: | |
Zdroj: | AJ 156, 240, 2018 |
Druh dokumentu: | Working Paper |
DOI: | 10.3847/1538-3881/aae484 |
Popis: | The results of 3,989 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 two thousand short-exposure images. These observations are averaged into 1,911 mean relative positions and range in separation from 0.289 to 128.638, with a median separation of 8.669. Four orbits are improved. This is the 23rd in this series of papers and covers the period 4 January 2017 through 13 September 2017. Comment: 73 pages, 8 tables, 2 figures |
Databáze: | arXiv |
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