Results 151 to 160 of about 796 (181)

Rotational Properties of Small Asteroids: Photoelectric Observations of 16 Asteroids

Icarus, 1994
Abstract 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., Di Martino, M., Dotto, E., Fulchignoni, M., ROTUNDI, Alessandra, Burchi, R.   +5 more
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Rotational properties of asteroids: CCD observations of nine small asteroids

Planetary and Space Science, 1996
Abstract 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, M.A. Barucci, C.A. Angeli, A. Doressoundiram, M.C. De Sanctis   +4 more
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The Mexican Asteroid Photometry Campaigns: Aiming for Asteroids’ Rotation Periods

Proceedings of the International Astronomical Union, 2018
AbstractThousands 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, S. A. Ayala-Gómez, A. Avilés, M. E. Contreras, S. A. R. Haro-Corzo, P. A. Loera-González, S. Navarro-Meza, L. Olgun, E. Pérez-Tijerina, M. Reyes-Ruiz, J. C. Saucedo, J. Segura-Sosa, P. A. Valdés-Sada, I. L. Fuentes-Carrera, C. Chávez-Pech, M. Rodrguez-Martnez, R. Vázquez   +16 more
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Rotational breakup as the origin of small binary asteroids

Nature, 2008
Asteroids 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 ...
Walsh, K.J., Richardson, D.C., Michel, P.   +2 more
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Imaging unresolved rotating asteroids

Proceedings of SPIE, 1995
Abstract 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 ...
openaire   +1 more source

Physical study of asteroids: Ligthcurves and rotational periods of six asteroids

Icarus, 1984
Abstract V band photoelectric lightcurves and rotational periods are presented for six asteroids: 150 Nuwa, 203 Pompeja, 336 Lacaderia, 545 Messalina, 984 Gretia, and 1240 Fantasia. Except for 984 Gretia, none of these asteroids has been previously observed.
openaire   +1 more source

The origin and rotation of binary asteroids

2015
Binary asteroids were detected in a variety of dynamical populations, including Near-Earth Asteroids (NEAs), the main belt (MB), Trojans, and transneptunian objects (TNO). We discuss a new ???multi-impact??? model for origin of all classes of binary objects, including binary asteroids, Pluto???Charon, and the Earth???Moon systems. Basic elements of the
Gaftonyuk, N., Gorkavyi, N.
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Primary Rotations of Paired Asteroids

2009
A population of small main-belt asteroids residing on closely similar orbits was revealed by Vokrouhlicky and Nesvorny (2008, Astron. J. 136, 280-290). We have estimated statistical significances of individual pairs (Pravec and Vokrouhlicky 2009, Icarus, in press) and started a photometry observing program to characterize their spin properties ...
Pravec, Petr, Vokrouhlický, D., Polishook, David, Harris, Alan W., Galád, Adrián, Vaduvescu, Ovidiu, Pozo, F. N., Barr, A., Longa, P., Colas, François, Marchis, Franck, Macomber, B., Pollock, Joseph T., Pray, D. P.   +13 more
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Asteroid rotation

Icarus, 1980
A.W. Harris, J.W. Young
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Slowly Rotating Asteroid 1999 GU3

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.
openaire   +1 more source