| rdfs:comment | - The planet Kakhodor is twice as massive as Earth. Due to Kakhodor's lower density, its gravity is only 1,05 g, or 5% higher than Earth's gravity. Kakhodor has 50% land and 50% water, with the oceans being shallower and saltier than the oceans on Earth. The shallower oceans generate much less water pressure at the deepest points on the ocean floor, pressing much less water into the mantle. As a result, Kakhodor's mantle contains much less water than Earth's mantle. It is thought that the total amount of H2O on Kakhodor, the mantle included, is 1/20 that on Earth or less. However, since it is surface water that generates clouds that can rain, percipitation is almost as common on Kakhodor as it is on Earth. There are five large continents on Kakhodor, all connected by land bridges of varying
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| abstract | - The planet Kakhodor is twice as massive as Earth. Due to Kakhodor's lower density, its gravity is only 1,05 g, or 5% higher than Earth's gravity. Kakhodor has 50% land and 50% water, with the oceans being shallower and saltier than the oceans on Earth. The shallower oceans generate much less water pressure at the deepest points on the ocean floor, pressing much less water into the mantle. As a result, Kakhodor's mantle contains much less water than Earth's mantle. It is thought that the total amount of H2O on Kakhodor, the mantle included, is 1/20 that on Earth or less. However, since it is surface water that generates clouds that can rain, percipitation is almost as common on Kakhodor as it is on Earth. There are five large continents on Kakhodor, all connected by land bridges of varying width. Yet the oceans between ensure that no Pangea-style central desert effect is the case. Due to the minimal amount of water in the mantle, the lower part of the crust is drier than that on Earth. This has an effect on plate tectonics: that on Kakhodor is more up and down than sideways, similar to that on ancient Mars but different from that on Earth. Unlike Venus, however, no global eruption has ever occurred on Kakhodor. The volcanoes on Kakhodor are quite efficient in releasing the magma pressure, so the planet is not building up to a global magma event. In Kakhodor's history, land bridges have came and went, with an effect on biodiversity similar to that of Earth's plate tectonics. The atmosphere is 75% nitrogen, 21,5% oxygen, 3% argon and 0,5% other gases. Atmospheric pressure at sea level is 0,87 that on Earth at sea level. Carbon dioxide levels are extremely low, much lower than those on Earth, and no Earth plant would have been able to survive in air so low in carbon dioxide. This is thought to be due to the torrential global autumn rains of the eccentric orbit washing CO2 out of the atmosphere. Due to the lesser greenhouse effect, with the virtual absence of carbon dioxide punching holes in parts of the infrared frequency range at which water vapor do not cover, temperatures vary severely. At the age of 5 billion Earth years, or 8,9 billion local years, Kakhodor is somewhat older than Earth.
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