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The average albedo of Earth is about 0.3. [15] This is far higher than for the ocean primarily because of the contribution of clouds. Earth's surface albedo is regularly estimated via Earth observation satellite sensors such as NASA's MODIS instruments on board the Terra and Aqua satellites, and the CERES instrument on the Suomi NPP and JPSS.
Globe at Night is an international scientific research program that crowdsources measurements of light pollution in the night sky. At set time periods within each year, the project asks people to count the number of stars that they can see from their location and report it to the project's website.
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 .
A sky chart showing the location of Comet C/2022 E3 (ZTF) throughout January. (NASA) The easiest time to see the comet will be during the second weekend of February as it passes incredibly close ...
Albedo map shows the measured difference in surface reflectivity from the surface of a celestial body. Atlas is a special collection of images of a celestial body surface. The images may be from either ground-based or spacecraft sources. Usually a single scale or set of scales is used throughout the atlas.
Comet C/2022 E3 (ZTF) is visible in the sky above the Mojave National Preserve in San Bernadino County as it approaches Earth for the first time in about 50,000 years on January 31, 2023 near ...
A 1934 map showing some of Mercury's albedo features. This is a list of the albedo features of the planet Mercury as seen by early telescopic observation.. Early telescopic observations of Mercury were based on the assumption that Mercury keeps one of its faces permanently turned toward the Sun, through the mechanism of tidal locking.
Cloud albedo strongly influences the Earth's energy budget, accounting for approximately half of Earth's albedo. [1] [2] Cloud albedo is influenced by the conditions of cloud formation and variations in cloud albedo depend on the total mass of water, the size and shape of the droplets or particles and their distribution in space. [3]