Results 141 to 150 of about 796 (181)

Asteroid rotation

Icarus, 1979
Joseph A Burns
exaly   +2 more sources

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

Asteroid rotation rates

Icarus, 1984
A trend of increasing mean rotational frequency with increasing diameter is noted in asteroids with diameters greater than 120 km, irrespective of M-, S-, and C-type asteroid subset and family or nonfamily membership. This trend cannot be accounted for by observational selection.
Stanley F. Dermott, Alan W. Harris, Carl D. Murray   +2 more
openaire   +1 more source

On the Rotations of M Asteroids

1982
According 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
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 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

On the Slow Rotation of Asteroids

Icarus, 2002
Abstract 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
openaire   +1 more source

Fast and Slow Rotation of Asteroids

Icarus, 2000
Abstract 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
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

Rotational periods of asteroids II

Planetary and Space Science, 2001
Abstract 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
openaire   +1 more source