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The rotation of small asteroids
Icarus, 1984The Binzel and Mulholland (1983) sample of photoelectrically determined rotational parameters for 17 main belt asteroids with diameters less than 30 km are compared with previous observations of asteroids of that size range. Rigorous statistical tests are applied to investigate bias effects and quantify results on asteroid rotation.
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On the Rotations of M Asteroids
1982According to the theory of collisional evolution of asteroid rotations by Harris (1979) the densest objects should have the highest average spin rates. Since it is widely believed that M asteroids are of metallic composition, this theory predicts that they rotate more rapidly than the stony C or S objects. Harris and Burns (1979) found indications that
C.-I. Lagerkvist, H. Rickman
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Fast and Slow Rotation of Asteroids
Icarus, 2000Abstract We present an analysis of the distribution of asteroid spin rates vs. size. The existence of significant populations of both slow and fast rotators among asteroids smaller than D=40 km, and especially below 10 km (where our sample is mostly near-Earth asteroids), is shown.
Petr Pravec, Alan W. Harris
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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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Rotational periods of asteroids II
Planetary and Space Science, 2001Abstract In the framework of the photoelectric asteroid observational program undertaken at Catania University to collect lightcurves apt to apply the pole computational methods, the V-band lightcurves and the values of the synodic rotational period and of the average B–V colour index of 5 Astrea, 6 Hebe, 12 Victoria, 13 Egeria, 26 Proserpina, 34 ...
D Riccioli, C Blanco, M Cigna
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The rotation of asteroid (16) Psyche
Chinese Astronomy and Astrophysics, 1982Abstract We used observations at 4 oppositions to calculate the rotation of the asteroid (16) Psyche. Our results are 1) the pole is λ 225°, β = +5° (1950.0), 2) the rotation is direct, and 3) the sidereal period is 4h 11m 45s.42 ± 0s.01. At the three oppositions of 1955, 1965 and 1980, the relative positions of the Sun, the Earth and the asteroids ...
null Zhou Xing-hai, null Yang Xiu-yi
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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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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 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. Birlan +4 more
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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.
W. J. Schuster +16 more
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