A novel analytic continuation power series solution for the perturbed two-body problem Kevin HernandezTarek A. ElgoharyJohn L. Junkins Original Article 12 October 2019 Article: 48
The evolution of the Line of Variations at close encounters: an analytic approach G. B. ValsecchiA. Del VignaM. Ceccaroni Original Article 28 September 2019 Article: 47
Central configurations in planar n-body problem with equal masses for \(n=5,6,7\) Małgorzata MoczuradPiotr Zgliczyński Original Article Open access 24 September 2019 Article: 46
Analytic orbit theory with any arbitrary spherical harmonic as the dominant perturbation Bharat MahajanKyle T. Alfriend Original Article 23 September 2019 Article: 45
Structure of the centre manifold of the \(L_1,L_2\) collinear libration points in the restricted three-body problem Giuseppe Pucacco Original Article 20 September 2019 Article: 44