Results 291 to 300 of about 216,492 (336)

Shape of small solar system bodies

Solar System Research, 2014
The morphometric parameters are examined for the shape of fragments of ordinary chondrites, iron meteorites, S- and C-class stony asteroids, metallic asteroids, and icy small bodies of the Solar System. All small Solar System bodies are shown to have, depending on their composition and, hence, physical and mechanical properties, a specific shape that ...
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Small Bodies of the Solar System

Reviews of Geophysics, 1991
This report summarizes some of the significant results achieved in the last four years on asteroids, comets, and small satellites. These objects are interrelated in several ways - some objects may be considered either asteroids or comets; some small satellites may have been comets or asteroids captured into planetary orbits; and these small, low ...
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Mechanical evolution of small solar system bodies

2023
This dissertation presents a series of studies that develop and apply numerical modeling techniques to small bodies in the solar system. We are particularly interested in low-energy deformations, collisions, and disruptions, and our subjectsrange from near-Earth asteroids to Kuiper belt contact binaries in the farthest reaches of the solar system.
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Dynamic simulation of small solar system bodies

Astronomical & Astrophysical Transactions, 1998
Abstract As part of a dynamical study of small transneptunian bodies, in particular, of the cometary Oort cloud, a simulation of orbital evolution under the influence of the Galactic gravitational field was performed. The tidal Galactic potential includes a term corresponding to the Sun's orbital motion around the Galaxy's centre (core) in the point ...
S. L. Semenova, V. M. Chepurova
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Migration of Small Bodies in the Solar System

Earth, Moon, and Planets, 1996
We investigate several parts of the process of migration of small bodies to the Earth from the asteroid and transneptunian belts. The obtained characteristic times up to collisions of near-Earth objects with the Earth are less than those obtained by other scientists.
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Lift-Off Velocity on Solar-System Small Bodies

Journal of Guidance, Control, and Dynamics, 2017
The lift-off velocity is defined as the velocity at which a particle, moving tangentially on the surface of some arbitrary body, will lift off from that surface and enter orbit.
Stefaan Van wal, Daniel J. Scheeres
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Small Bodies of the Solar System

1999
In addition to the Sun, Moon and major planets, the lesser members of the Solar System can also be participants in transient phenomena of interest to the astronomical observer. Meteor activity, produced by small particles – meteoroids – usually of cometary origin, has already been discussed (Chapter 2).
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Small Bodies of the Solar System

1995
Neptune had been discovered in 1846 because of irregularities in the orbit of Uranus, but, in many ways, its discovery was fortunate, as it was much closer to Uranus than either Le Verrier or Adams had assumed. Le Verrier was not convinced that Neptune was the limit of the solar system, and said so to Galle on 1st October 1846, but he recognised that ...
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Space Weathering of Small Solar System Bodies

Earth, Moon, and Planets, 2009
Micrometeorite bombardment and irradiation by solar wind and cosmic ions cause variations in the optical properties of the small Solar System bodies surface materials. These space weathering processes are reasonably well understood for the Moon and S-type asteroids.
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Regoliths on Small Bodies in the Solar System

Annual Review of Earth and Planetary Sciences, 1982
A regolith is defined as a layer or mantle of loose, incoherent, rocky material of whatever origin, that nearly everywhere forms the surface of the land and rests on coherent bedrock. The regoliths on many planetary bodies are the result of continual impacts, which transform coherent surfaces into fragmental debris.
K R Housen, L L Wilkening
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