enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Albedo - Wikipedia

    en.wikipedia.org/wiki/Albedo

    A typical comet nucleus has an albedo of 0.04. [68] Such a dark surface is thought to be indicative of a primitive and heavily space weathered surface containing some organic compounds. The overall albedo of the Moon is measured to be around 0.14, [69] but it is strongly directional and non-Lambertian, displaying also a strong opposition effect ...

  3. Albedo feature - Wikipedia

    en.wikipedia.org/wiki/Albedo_feature

    In planetary geology, an albedo feature is a large area on the surface of a planet (or other Solar System body) which shows a contrast in brightness or darkness with adjacent areas. Historically, albedo features were the first (and usually only) features to be seen and named on Mars and Mercury .

  4. Reflective surfaces (climate engineering) - Wikipedia

    en.wikipedia.org/wiki/Reflective_surfaces...

    Solar reflectance, also known as albedo, is the ability to reflect sunlight. It is expressed either as a decimal fraction or a percentage. A value of 0 indicates that the surface absorbs all solar radiation, and a value of 1 (or 100%) represents total reflectivity. Thermal emittance is the ability to emit absorbed heat. It is also expressed ...

  5. Standard asteroid physical characteristics - Wikipedia

    en.wikipedia.org/wiki/Standard_asteroid_physical...

    The table shows that for bodies in the asteroid albedo range, the typical difference between Bond and geometric albedo is 20% or less, with either quantity capable of being larger. Since the calculated temperature varies as ( 1 − A ) 1 4 {\displaystyle (1-A)^{1 \over 4}} , the dependence is fairly weak for typical asteroid A ≈ p ...

  6. Cloud albedo - Wikipedia

    en.wikipedia.org/wiki/Cloud_albedo

    Cloud albedo is a measure of the albedo or reflectivity of a cloud. Clouds regulate the amount of solar radiation absorbed by a planet and its solar surface irradiance . Generally, increased cloud cover correlates to a higher albedo and a lower absorption of solar energy .

  7. Martian surface - Wikipedia

    en.wikipedia.org/wiki/Martian_surface

    Thermal inertia values for most of the Martian surface are inversely related to albedo. Thus, high albedo areas have low thermal inertias indicating surfaces that are covered with dust and other fine granular material. The dark gray, low albedo surfaces have high thermal inertias more typical of consolidated rock.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Geometric albedo - Wikipedia

    en.wikipedia.org/wiki/Geometric_albedo

    Diffuse reflection on sphere and flat disk, each for the case of a geometric albedo of 1. For the hypothetical case of a plane surface, the geometric albedo is the albedo of the surface when the illumination is provided by a beam of radiation that comes in perpendicular to the surface.