Results 201 to 210 of about 13,644 (233)

On the shape of rapidly rotating asteroids

Advances in Space Research, 1981
Abstract By means of a statistical analysis of the rotational properties of asteroids, we define a class of large amplitude and short period objects (LASPA). A possible interpretation of their collisional evolution and present physical status, in terms of ellipsoidal figures of equilibrium, is proposed.
FARINELLA, PAOLO, PAOLICCHI, PAOLO, Zappalà V.   +2 more
openaire   +2 more sources

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

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
openaire   +1 more source

The axial rotation of asteroids

Astrophysics and Space Science, 1970
The observed fact that light changes of the asteroids exhibit no beat periods is interpreted as an indication that they do not wobble in space like spinning tops, but spin about only one axis (possibly — but not necessarily — inclined but little to the plane of their orbits).
openaire   +1 more source

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
openaire   +1 more source

Asteroid 1620 Geographos: I. Rotation

Solar System Research, 2002
This study is part of a wide investigation, the goal of which is to find out whether meteor streams genetically related to asteroid 1620 Geographos exist and when and how they were formed. One of the possible mechanisms of the particles' removal from the asteroid's surface is their throw-off caused by rotational forces. The asteroid-rotation parameters
openaire   +1 more source

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
openaire   +1 more source

The rotation of small asteroids

Icarus, 1984
The 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.
openaire   +1 more source

New rotational periods of 18 asteroids

Planetary and Space Science, 2000
Abstract 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.
C. Blanco, M. Di Martino, D. Riccioli
openaire   +1 more source

Rotation of asteroids and planetary axial rotation theory

The Moon and the Planets, 1982
A 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
openaire   +1 more source