albedo
反照率,反射率
Definitions
- 1
plural al·be·dos.
- : Astronomy. the ratio of the light reflected by a planet or satellite to that received by it.
- : Meteorology. such a ratio for any part of the earth's surface or atmosphere.
- : the white, inner rind of a citrus fruit.
Examples
Dark roads, roofs and other building materials also have a lower albedo, meaning they reflect less sunlight.
This lowers their albedo — how much light they reflect — which can cause melting.
Tar and asphalt have a low albedo, absorbing the sun’s light, mostly as heat.
For the study, published Monday in Nature Astronomy, scientists used images collected by Hayabusa-2 to parse the rock’s albedo—or reflective properties—to uncover clues to the asteroid’s cosmic mashup.
There are other metals with a higher albedo, but none that give a richer effect.
The electron telescope could detect its larger planets, especially a gas-giant fifth-orbit world of high albedo.
If anything of the right size shows up, decelerate until we can get mass and albedo measurements.
If the asteroid's albedo matched it, that would be one piece of evidence.
Its "albedo," in other words, is 0·17, which is precisely that ascribed to the moon.