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2010AJ....140...25C - Astron. J., 140, 25-28 (2010/July-0)
A new recalculated orbit for the visual binary CHR 90.
CVETKOVIC Z., PAVLOVIC R. and NINKOVIC S.
Abstract (from CDS):
In this paper, new orbital elements for visual pair WDS 19531-1436 = CHR 90 of the triple system V505 Sgr obtained from speckle interferometric measurements are reported. The first speckle measurement was in 1985 and 22 more speckle measurements have been made since then. For this binary, orbits were previously determined. Our orbit has a period of 94 years, and it is significantly longer than those previously found. In addition to the orbital elements in this paper, the mass, dynamical parallax, and ephemerides for the next five years are also given.
Abstract Copyright: ∼
Journal keyword(s): binaries: visual - stars: fundamental parameters - stars: individual: CHR 90
Simbad objects: 1
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