The polar axis, gross shape and rough surface albedo distribution of the asteroid 4 Vesta have been recently determined by two distinct and independent sets of observational data, provided by lightcurve photometry and by speckle interferometry. The results are consistent, and show that Vesta is a spheroidal or a quasi-spheroidal object whose surface has a significant albedo variegation. This is the first time that different earth-based techniques have led to a rough 'map' of an asteroidal object.
|Autori:||CELLINO A; DIMARTINO M; DRUMMOND J; FARINELLA P; PAOLICCHI P; ZAPPALA V|
|Titolo:||VESTA SHAPE, DENSITY AND ALBEDO FEATURES|
|Anno del prodotto:||1989|
|Appare nelle tipologie:||1.1 Articolo in rivista|