Merhaba Misafir

The true and apparent elliptical orbits of a visual binary star


Observation of binary star orbits reveals only the apparent orbit of these two celestial bodies which differs from the true orbit. Because of the inclination of the plane of the true orbit one can only observe its projection onto the plane of the sky. Computing the true orbit from the apparent orbit is based on constructing the auxiliary ellipse. This process is well known (Kallrath 2009) but requires arduous numerical computations. In this paper a simpler approach to obtain the auxiliary ellipse is presented and its derivation is provided. This approach finds out that the coefficients of the auxiliary ellipse are linear functions of those of the apparent ellipse.

Yayınlandığı Kaynak : Communications, Series A2-A3 Physics, Engineering Physics, Electronix Engineering and Astronomy