Results 211 to 220 of about 85,468 (250)
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On the Slow Rotation of Asteroids
Icarus, 2002Abstract Asteroids with very slow rotation rates, up to 100 times slower than the mean for ordinary asteroids, are clearly a statistically distinct population from the rest. The cause of such slow rotation has remained a mystery since the discovery of the population about 20 years ago. The expected distribution of slow rotations for three-dimensional
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Slowly Rotating Asteroid 1999 GU3 [PDF]
Icarus, 2000 Abstract Optical and radar observations reveal that 1999 GU3 is sub-kilometer-sized object with a synodic period of 9.0 days, low visual and radar albedos, and colors more consistent with the ordinary chondrites than the vast majority of main-belt asteroids.
Lance A. M. Benner +11 more
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Icarus, 1979
Abstract Data are presented for the 182 asteroids whose rotational properties are available in the literature. Plots are provided for the asteroid rotational frequency f and lightcurve amplitude Δm versus asteroid size; the latter is determined using standard methods if data are available but otherwise is estimated from asteroid albedos, selected ...
Alan W. Harris, Joseph A. Burns
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Abstract Data are presented for the 182 asteroids whose rotational properties are available in the literature. Plots are provided for the asteroid rotational frequency f and lightcurve amplitude Δm versus asteroid size; the latter is determined using standard methods if data are available but otherwise is estimated from asteroid albedos, selected ...
Alan W. Harris, Joseph A. Burns
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Rotational Properties of Small Asteroids: Photoelectric Observations of 16 Asteroids
Icarus, 1994Abstract Continuing the observational program started in 1984 on small asteroids (diameter smaller than about 50 km), we present the results of photometric observations performed with a 1-m telescope at the ESO (La Silla, Chile). A total of 56 single-night lightcurves for 16 asteroids were obtained.
Barucci, M. A. +5 more
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Rotational breakup as the origin of small binary asteroids
Nature, 2008Asteroids with satellites are observed throughout the Solar System, from subkilometre near-Earth asteroid pairs to systems of large and distant bodies in the Kuiper belt. The smallest and closest systems are found among the near-Earth and small inner main-belt asteroids, which typically have rapidly rotating primaries and close secondaries on circular ...
Patrick Michel +3 more
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Imaging unresolved rotating asteroids
Proceedings of SPIE, 1995Abstract Most asteroids subtend extremely small angles in the sky so it is impossible to directly discerneither surface reflectivity, shape variations, or the spin axis using existing ground-based telescopesystems. A super-resolution inversion technique relates the lightcurves of a rotating asteroid, whichis represented as a polyhedron with planar ...
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Rotation of asteroids and planetary axial rotation theory
The Moon and the Planets, 1982A theory (Barricelli, 1972) developed for the interpretation of planetary axial rotations is here applied to an interpretation of the axial rotations of major asteroids. The interpretation is based on the assumption that also asteroids can have satellite-systems, which may influence the axial rotation of the respective primaries. The reason why smaller
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The Mexican Asteroid Photometry Campaigns: Aiming for Asteroids’ Rotation Periods
Proceedings of the International Astronomical Union, 2018AbstractThousands of new asteroids are discovered every year and the rate of discovery is by far larger than the determination rate of their physical properties. In 2015 a group of researchers and students of several Mexican institutions have established an observational program to study asteroids photometrically.
C. Chávez-Pech +16 more
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Rotational properties of asteroids: CCD observations of nine small asteroids
Planetary and Space Science, 1996Abstract The observational programme on small asteroids (diameter less than about 50 km) is continued to enlarge the available dataset of small asteroids. The results are presented of CCD observations of nine small asteroids ( D ≤23 km), performed in France with the 1.2 m telescope at Haute Provence Observatory and with the 2 m telescope at Pic du ...
M. C. De Sanctis +4 more
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New rotational periods of 18 asteroids
Planetary and Space Science, 2000Abstract The results of photoelectric observations of 18 main-belt asteroids are discussed. The V-band lightcurves, the B–V colors, and the values of the synodic rotational period are presented. There exists no previous determination of the period for 13 of them.
D. Riccioli, M. Di Martino, C. Blanco
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