Speckle Interferometry at the US Naval Observatory. II.

Details Speckle Interferometry at the US Naval Observatory. II. Speckle Interferometry at the US Naval Observatory. II.

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aj....117.1905g&link_type=abstract

The Astronomical Journal, Volume 117, Issue 4, pp. 1905-1920.

Astronomy and Astrophysics

Astronomy

15

Binaries: General, Binaries: Visual, Techniques: Interferometric

Scientific paper

Position angles and separations resulting from 2406 speckle interferometric observations of 547 binary stars are tabulated. This is the second in a series of papers presenting measures obtained using the 66 cm refractor at the US Naval Observatory in Washington, DC, with an intensified CCD detector. Program stars range in separation from 0.2" to 3.8", with Deltam<=2.5 mag and a limiting magnitude of V=10.0. The observation epochs run from 1993 January through 1995 August. Random errors are estimated to be 14 mas in separation and 0.52d/rho in position angle, where rho is the separation in arcseconds. The instrumentation and calibration are briefly described. Aspects of the data analysis related to the avoidance of systematic errors are also discussed.

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