# Albedo (absolute magnitude and diameter)

Not Reviewed
A =
Rating
ID
EmilyB.Albedo (absolute magnitude and diameter)
UUID
80202693-57ff-11e6-9770-bc764e2038f2

The Albedo (absolute magnitude and diameter or reflection coefficient is the diffuse reflectivity or reflecting power of a surface. It is the ratio of reflecting radiation from the surface  to incident radiation upon it. Its dimensionless nature lets it be expressed as a percentage and is measured on a scale from zero for no reflection of a perfectly black surface to 1 for perfect reflection of a white surface. The following formula is used to calculate albedo: A=((1329*10^(-H/5))/D)^2 where:

• A = astronomical albedo
• H = absolute magnitude
• D = diameter in kilometers

## References

Wikipedia (https://en.wikipedia.org/wiki/Albedo)