Draft:Electric Spacecraft



Electric spacecraft are spacecraft that use electric propulsion to generate thrust, typically powered by solar panels or onboard nuclear sources. Unlike conventional chemical-propulsion spacecraft, electric spacecraft achieve much higher specific impulse and fuel efficiency, allowing longer missions with less propellant, although their instantaneous thrust is lower.Goebel, D. M., & Katz, I. Fundamentals of Electric Propulsion: Ion and Hall Thrusters. John Wiley & Sons, 2008.

File:Dawn spacecraft.jpg
NASA's Dawn spacecraft uses ion propulsion to travel to and orbit the asteroids Vesta and Ceres.
File:Hall effect thruster diagram.png
Diagram of a Hall-effect thruster, a common type of electric propulsion used on satellites.

Electric spacecraft are used for satellite station-keeping, orbit-raising, and deep-space missions such as Dawn and BepiColombo. Common electric propulsion technologies include Ion thruster, Hall-effect thruster, Electrospray thruster, and Pulsed plasma thruster.

References

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Goebel, D. M., & Katz, I. Fundamentals of Electric Propulsion: Ion and Hall Thrusters. John Wiley & Sons, 2008. Choueiri, E. Y. (2009). "New Dawn for Electric Rockets." Scientific American, 300(2), 58–65. ESA. BepiColombo: Electric Propulsion System Overview. European Space Agency, 2018. https://www.e≈sa.int/Science_Exploration/Space_Science/BepiColombo