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 writing of genre author Gene Wolfe. These columns are often noted for their "opinionated" or controversial stance on genre matters, with that in issue 31 of "Albedo One" being described as "a deliberately provocative rant" by one reviewer. In 1996 the editors offered an open invitation, stating that "If you feel strongly about anything and want to let us and the readers know, you too can don the mightly mantle of Severian." Between 1997 and 1999 "Albedo One" was honored three times by the European Science Fiction Society, winning Awards for "Best Magazine" and "Best Publisher". Stories from the magazine