A New Recalculated Orbit for the Visual Binary CHR 90

Details A New Recalculated Orbit for the Visual Binary CHR 90 A New Recalculated Orbit for the Visual Binary CHR 90

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aj....140...25c&link_type=abstract

The Astronomical Journal, Volume 140, Issue 1, pp. 25-28 (2010).

Astronomy and Astrophysics

Astronomy

Binaries: Visual, Stars: Fundamental Parameters, Stars: Individual: Chr 90

Scientific paper

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.

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