Results 21 to 30 of about 116,906 (304)

PHOTOGRAPHIC OBSERVATIONS OF SOLAR SYSTEM BODIES AT THE MAIN ASTRONOMICAL OBSERVATORY OF NAS OF UKRAINE: FINAL RESULTS

open access: yesOdessa Astronomical Publications, 2017
Astrometric  photographic  observations  of Solar system bodies in the frame of different programs were made  at  MAO  NAN  of  Ukraine  during  1950-2005.
V. Golovnia   +3 more
doaj   +1 more source

Planet - Disk Symbiosis [PDF]

open access: yesAstrophys.J.606:L77-L80,2004, 2003
Planets form in disks around young stars. Interactions with these disks cause them to migrate and thus affect their final orbital periods. We suggest that the connection between planets and disks may be deeper and involve a symbiotic evolution. By contributing to the outward transport of angular momentum, planets promote disk accretion.
arxiv   +1 more source

The Hill Stability of Triple Minor Planets in the Solar System [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 427(2), 1034-1042, 2012, 2012
The triple asteroids and triple Kuiper belt objects (collectively called the triple minor planets) in the Solar system are of particular interest to the scientific community since the discovery of the first triple asteroid system in 2004. In this paper, the Hill stability of the nine known triple minor planets in the Solar system is investigated. Seven
arxiv   +1 more source

Dynamics of Polar Resonances and Their Effects on Kozai–Lidov Mechanism

open access: yesApplied Sciences, 2022
The research on highly inclined mean motion resonances (MMRs), even retrograde resonances, has drawn more attention in recent years. However, the dynamics of polar resonance with inclination i≈90∘ have received much less attention.
Miao Li, Shengping Gong
doaj   +1 more source

Calibration of the angular momenta of the minor planets in the solar system [PDF]

open access: yes2019, A&A, 630, A68, 2019
We aim to determine the relative angle between the total angular momentum of the minor planets and that of the Sun-planets system, and to improve the orientation of the invariable plane of the solar system. By utilizing physical parameters available in public domain archives, we assigned reasonable masses to 718041 minor planets throughout the solar ...
arxiv   +1 more source

Raining Rocks: An analytical formulation for collision timescales in planetary systems [PDF]

open access: yes, 2021
The dynamical interaction of minor bodies (such as comets or asteroids) with planets plays an essential role in the planetary system's architecture and evolution. As a result of these interactions, structures like the Kuiper belt and the Oort cloud can be created.
arxiv   +1 more source

Observational Data and Orbits of the Asteroids Discovered at the Baldone Observatory in 2008–2013

open access: yesOpen Astronomy, 2015
The paper presents statistics of the asteroids observed and discovered at the Baldone Observatory, Latvia, in 2008–2013 within the project for astrometric observations of the near-Earth objects (NEOs), the main belt asteroids and comets. CCD observations
Černis K., Wlodarczyk I., Eglitis I.
doaj   +1 more source

Interaction between Yarkovsky force and mean-motion resonances: Some specific properties [PDF]

open access: yesSerbian Astronomical Journal, 2016
Recently, we analyzed the role of mean-motion resonances in semi-major axis mobility of asteroids, and established a functional relationship that describes the dependence of the average time spent inside the resonance on the strength of this ...
Milić-Žitnik I.
doaj   +1 more source

An Objective Classification Scheme for Solar-System Bodies Based on Surface Gravity

open access: yesGalaxies
We introduce succinct and objective definitions of the various classes of objects in the solar system. Unlike the formal definitions adopted by the International Astronomical Union in 2006, group separation is obtained from measured physical properties ...
Dimitris M. Christodoulou   +2 more
doaj   +1 more source

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