In this study, we aim to investigate the motion of an infinitesimal mass under the gravitational influence of the rotating primary body. Here we consider a primary body as a finite straight segment with a non-homogeneous density profile. Our study focuses on modeling bodies with elongated shapes and dual mass concentrations, for which we have adopted a fourth-order polynomial function to represent the density profile. We have also considered the albedo effect reflected from the primary body. We found that four equilibrium points exist outside the body, two of which are collinear and the other two non-collinear. We have also found the existence of up to three equilibrium points within the body. We remarked that the inclusion of a non-homogeneous density profile, as well as the albedo effect, has changed the position of equilibrium points. The stability of equilibrium points has been investigated. It shows that the collinear equilibrium points are always unstable while the non-collinear equilibrium points are conditionally stable. We noted that the albedo and the properties of the density profile have changed the size of the stability region in noncollinear equilibrium points. Furthermore, we have constructed periodic orbits around the finite straight segment. Several families of periodic orbits exist near the region of equilibrium points. Next, we have applied our model to study the region near Asteroid (216) Kleopatra. We found that all four equilibrium points that exist near this asteroid are unstable. We compared our model with the polyhedral model, considering the case of (216) Kleopatra. We found good agreement in estimating the equilibrium points’ position and stability, particularly for those outside the body. We highlight that our model is faster than the polyhedral model in calculating the dynamical trajectory near the asteroid.


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    Titel :

    Model of Potential Around Natural Elongated Asteroid with 4th Order Polynomial Density Profile and Albedo Effects


    Weitere Titelangaben:

    J Astronaut Sci


    Beteiligte:
    Nurul Huda, I. (Autor:in) / Syahrul Haz, H. R. (Autor:in) / Dermawan, B. (Autor:in) / Abdurrazzaq, A. (Autor:in) / Rachmawati, R. N. (Autor:in) / Kuntjoro, Y. D. (Autor:in)


    Erscheinungsdatum :

    25.03.2025




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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