Infrared thermal emission measurements are reported of 1862 Apollo, which is the type example of an earth-crossing asteroid. A geometric albedo of 0.21 plus or minus 0.02 is derived which is within the albedo range of the S class of asteroids. The effective diameter was observed to vary with rotation from 1.2 plus or minus 0.1 to 1.5 plus or minus 0.1 km.
The albedo and diameter of 1862 Apollo
Icarus ; 48
01.11.1981
Sonstige
Keine Angabe
Englisch
The diameter and albedo of Asteroid 1976 AA
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