Speckle Interferometry at the US Naval Observatory. IV.
Abstract
The results of 1314 speckle interferometric observations of 625 binary stars, ranging in separation from 0.2" to 5.2" with a limiting secondary magnitude of V=11, are tabulated. These observations were obtained using the 66 cm refractor at the US Naval Observatory in Washington, DC, with an intensified CCD detector. This is the fourth in a series of papers presenting measures obtained with this equipment and covers the period 1997 January 1 through December 31. Random errors for all measures are estimated to be 18 mas in separation and 0.57d/rho in position angle, where rho is the separation in arcseconds.
- Publication:
-
The Astronomical Journal
- Pub Date:
- September 1999
- DOI:
- 10.1086/301022
- Bibcode:
- 1999AJ....118.1395D
- Keywords:
-
- STARS: BINARIES: GENERAL;
- STARS: BINARIES: VISUAL;
- TECHNIQUES: INTERFEROMETRIC