Geometric albedo For Earth-bound observers this occurs when the body in question is at opposition and on the ecliptic. The visual geometric albedo refers to the geometric albedo quantity when accounting for only electromagnetic radiation in the visible spectrum. The surface materials (regoliths) of airless bodies (in fact, the majority of bodies in the Solar System) are strongly non-Lambertian and exhibit the opposition effect, which is a strong tendency to reflect light straight back to its source, rather than scattering light diffusely. The geometric albedo of these bodies can be difficult to determine because of this, as their reflectance is strongly peaked
Albedo One Fiction" 2006. "Albedo One" was voted 8th in the Nominations for the Hugo Award under the "Best Semiprozine" category for 2006. Although only the top five in the list are deemed to have earned a Nomination for the Hugo Award under this category, the event is notable as being the first time "Albedo One" has had a presence on the nominations list (and the first time an Irish genre magazine has had a presence). The event is also notable in that "Albedo One" was placed ahead of other well-known magazines such as "Lady Churchill's Rosebud Wristlet", "Postscripts" and "Apex Digest".