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Table · dataset · 2018

Speckle interferometry at the USNO. XXII.

Listed in IVOA Registry (Virtual Observatory)

The results of 4747 intensified CCD observations of double stars, made with the 26 inch refractor of the U.S. Naval Observatory, are presented.

Description

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 0.328" to 95.9", with a median separation of 8.673".

Eight orbits are improved. This is the 22nd in this series of papers and covers the period 2016 January 4 through 2016 December 29.

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Documentation and papers

Catalogue records · 2

Topics

Inferred from text
Astronomical sciences 74% · Image 65%
Provenance · 1 source records, 9 field assertions
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