Results 51 to 60 of about 1,091 (163)
Odessa Astronomical Publications, 2016 Lately it has become possible to sufficiently precise definition of the physical and geometric characteristics of asteroid systems using radar observations (http://echo.jpl.nasa.gov/~lance/binary.neas.html), which allowed calculating the asymmetry of the
V. V. Troianskyi
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The Dynamics of NEO Binary Asteroids [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractThe dynamics of binary Near-Earth objects (NEO) are discussed and a simple model for the study of their dynamics is introduced. Main results on the motion and stability of binary asteroids are reviewed. The effect of perturbations external to the binary system, including solar gravity, solar radiation pressure, and planetary gravity, are ...
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Radiation Forces and Trajectory of Hayabusa2♯ Target 1998 KY26
The Astrophysical Journal LettersSmall near-Earth asteroid 1998 KY _26 has recently become an object of interest because it is the target of the Hayabusa2 ♯ mission and because challenges in fitting its astrometric data have led to classifying it as a dark comet.
Davide Farnocchia +5 more
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Effects of asteroid belt and oblateness on the stability and orbits near triangular Lagrange points
Results in PhysicsThis study investigates the dynamics of an infinitesimal body within the context of the restricted three-body problem, incorporating perturbations arising from the asteroid belt and the oblateness effects of the three bodies.
Wenhui Liu, Fabao Gao, Bao Ma
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AerospaceThis paper aims to investigate the effects of asteroid size and shape and solar radiation pressure in the trajectories of a spacecraft in transfers between the collinear equilibrium points of a binary non-spherical asteroid system.
L. B. T. Santos +3 more
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Fully Coherent Model of Dynamics around Binary Asteroids: Application to Didymos and the DART Impact
The Planetary Science JournalThe dynamical environment around binary asteroids has been studied in depth, but these models typically make assumptions about the eccentricity, shapes, or rotational stability of the asteroids.
Alex J. Meyer, Daniel J. Scheeres
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The Astrophysical Journal Supplement SeriesThe proper elements of asteroids are obtained from the instantaneous orbital elements by removing periodic oscillations produced by gravitational interactions with planets.
David Nesvorný +3 more
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Encounter Circumstances of Asteroid 99942 Apophis with the Catalog of Known Asteroids
The Planetary Science JournalAsteroid 99942 Apophis will pass near Earth in 2029 April. Expected to miss our planet by a safe margin, that could change if Apophis's path were perturbed by a collision with another asteroid in the interim.
Paul Wiegert, Benjamin Hyatt
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Dimorphos’s Orbit Period Change and Attitude Perturbation due to Its Reshaping after the DART Impact
The Planetary Science JournalOn 2022 September 26 (UTC), NASA's Double Asteroid Redirection Test (DART) mission achieved a successful impact on Dimorphos, the secondary component of the near-Earth binary asteroid system (65803) Didymos. Subsequent ground-based observations suggest a
Ryota Nakano +19 more
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Evidence for YORP-induced Spin Deceleration in Asteroid (433) Eros
The Astrophysical JournalTheoretically, the Yarkovsky–O’Keefe–Radzievskii–Paddack (YORP) effect induced by thermal reemission from asteroid surfaces can either accelerate or decelerate their rotation.
Shuai Feng +5 more
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