Results 91 to 100 of about 13,644 (233)

An Earth Encounter as the Cause of Chaotic Dynamics in Binary Asteroid (35107) 1991VH

open access: yesThe Planetary Science Journal
Among binary asteroids, (35107) 1991VH stands out as unique given the likely chaotic rotation within its secondary component. The source of this excited dynamical state is unknown. In this work, we demonstrate that a past close encounter with Earth could
Alex J. Meyer   +6 more
doaj   +1 more source

Radiation Forces and Trajectory of Hayabusa2♯ Target 1998 KY26

open access: yesThe Astrophysical Journal Letters
Small 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
doaj   +1 more source

Lightcurve and rotation period determination for asteroid 3634 Iwan [PDF]

open access: green, 2018
Z. Donchev   +3 more
openalex   +1 more source

Rotation periods and shape asphericity in asteroid families based on TESS S1-S13 observations

open access: green, 2022
Gyula M. Szabó   +15 more
openalex   +1 more source

Secular dynamics around uniformly rotating asteroids

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
The dynamical behaviours of spacecrafts moving around uniformly rotating asteroids are investigated in this work. Based on the generalized inertia integrals of asteroids, the expression of the disturbing potential is derived as a trigonometric series in terms of the mean anomaly, geographical longitude of ascending node and argument of pericentre.
Hanlun Lei   +2 more
openaire   +1 more source

The Discovery and Characterization of Earth-crossing Asteroid 2024 YR4

open access: yesThe Astrophysical Journal Letters
We describe observations and physical characteristics of Earth-crossing asteroid 2024 YR _4 , discovered on 2024 December 27 by the Asteroid Terrestrial-impact Last Alert System.
Bryce T. Bolin   +11 more
doaj   +1 more source

Infrared Fluxes and Lightcurves of Near-Earth Objects: The Full Spitzer Sample

open access: yesThe Astronomical Journal
The IRAC camera on the Spitzer Space Telescope observed 2175 near-Earth objects (NEOs) during its Warm Mission phase, primarily in three large surveys, and also in a small number of a dedicated projects.
Joseph L. Hora   +4 more
doaj   +1 more source

Rotation Period Analysis for Five Asteroids

open access: yes, 2021
Fil: Colazo, Milagros Rita. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba.
Colazo, Milagros Rita   +15 more
openaire   +1 more source

Home - About - Disclaimer - Privacy