A carbon planet, also referred to as a diamond planet or carbide planet, is a theoretical type of planet proposed by Marc Kuchner that could form if protoplanetary discs are carbon-rich and oxygen-poor. According to planetary science, it would develop differently from Earth, Mars and Venus, planets made up mostly of silicon-oxygen compounds.

Such a planet would probably have an iron-rich core like the known terrestrial planets. Surrounding that would be silicon carbide and titanium carbide. Above that, a layer of carbon in the form of graphite, possibly with a kilometers-thick substratum of diamond if there is sufficient pressure. The surface would contain hydrocarbons and carbon monoxide. Extraterrestrial life might be possible if water is present, but the highly reducing environment could result in metabolism taking the opposite approach to that of terrestrial life, with oxygen-bearing compounds being eaten as food to react with the carbon-based atmosphere.

The pulsar [[PSR 1257+12]] may possess carbon planets that formed from the disruption of a carbon-producing star. Carbon planets might also be located near the galactic core, where stars have more carbon.

Carbon planets are predicted to be of similar diameter to silicate and water planets of the same mass, potentially making them difficult to distinguish.<ref></ref>

References

External links

• Marc J. Kuchner, Extrasolar Carbon Planets

• Carbon Brush Rapid Order Form Morganite Electrical Carbon Limited - a world leader in carbon technology.
• CIPO - Patent - 1047588 A cartridge on which is mounted two active carbon brush assemblies plugs into a Such support also provides ramps to guide the carbon brushes up and onto
• SD Carbons Limited, Carbon Brush Manufacturing Plant Belfast SD Carbons import all their carbon material from Germany and the carbon is of an extremely high standard of graphite. SD Carbons manufacture Carbon Brushes,
• Torema - Australian Carbon Brush - About Us - Leaders in Quality - Our carbon brushes are made from the finest materials ensuring that Australian Carbon brush products are the best quality.
• Image: CARBON BRUSHES to fit Bosch Washing Machine Image: CARBON BRUSHES to fit Bosch Washing Machine.
• Project logo For Carbon | creativebits a Place that sells Carbon rods, joints, and brushes I can see how the typeface resembles the carbon brush, but I'm not really liking the font.
• The relationship between the wear of carbon brush materials and The wear of a number of different types of carbon brush materials has been examined during repeated sliding on copper. It is shown that the copper surface
• Development of the Lead-Free Carbon Brush Material for Starters Carbon brushes for starters are used under severe condi- Lead has traditionally been added to carbon brushes to improve
• Carbon Brush, Brush holder, DC Motor A DC Motor carbon brush is an electrical contact which makes a connection with a moving surface. Optimal performance on motors, generators and other types