1. A novel analytic continuation power series solution for the perturbed two-body problem

   • Kevin Hernandez
   • Tarek A. Elgohary
   • John L. Junkins

   Original Article 12 October 2019 Article: 48

   

2. The evolution of the Line of Variations at close encounters: an analytic approach

   • G. B. Valsecchi
   • A. Del Vigna
   • M. Ceccaroni

   Original Article 28 September 2019 Article: 47

   

3. Central configurations in planar n-body problem with equal masses for \(n=5,6,7\)

   • Małgorzata Moczurad
   • Piotr Zgliczyński

   Original Article Open access 24 September 2019 Article: 46

   

4. Analytic orbit theory with any arbitrary spherical harmonic as the dominant perturbation

   • Bharat Mahajan
   • Kyle T. Alfriend

   Original Article 23 September 2019 Article: 45

   

5. 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