Design

The spacecraft was sphere-shaped.[4] Five antennae came out of one end.[4] Instrument ports came out of the surface of the sphere.[4] It also had various metallic emblems with the Soviet coat of arms.[4]

Instruments

Luna 1 had radio equipment,[4][5] a tracking transmitter[4][5] and a telemetering system[4] for communication with Earth.[4][5] The spacecraft carried several scientific devices too.[4] These included a magnetometer,[4][5] a device for measuring magnetic fields,[5] a scintillation counter[4][5] (a device for detecting high energy particles[5]) and a geiger counter[4][5] (a device for measuring radiation[5]). Luna 1 also carried a micrometeorite detector and other equipment.[4]

Mission

The space probe was launched on January 2, 1959[3][4][5] at Baikonur Cosmodrome[3][4][5] by a SS-6 Sapwood rocket.[4][5] The launch was successful and Luna 1 became the first man-made object ever to reach the escape velocity of the Earth.[3][5]

On January 3, 1959, the spacecraft released a cloud of sodium gas so that astronomers could track the probe and also to serve as an experiment on the behaviour of gas in space.[4][5]

Luna 1 was intended to impact the Moon's surface.[4][5] However, on January 4, 1959, it passed within 5995 km[4] of the Moon and began to orbit the Sun[3][4][5] between the orbits of Earth and Mars,[3][4] where it is still orbiting now,[3] on a 450 day orbit.[3] Thus, Luna 1 became the first spacecraft to orbit the Sun.[5]

References

  1. 1 2 "Beyond Earth: A Chronicle of Deep Space Exploration".
  2. 1 2 "NASA - NSSDCA - Spacecraft - Trajectory Details". nssdc.gsfc.nasa.gov. Archived from the original on 2017-03-16. Retrieved 2018-05-02.
  3. 1 2 3 4 5 6 7 8 Cox, Brian; Cohen, Andrew (2010). Wonders of the Universe. HarperCollins. p. 8. ISBN 9780007386901.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 "Luna 1". NASA. Archived from the original on 2013-02-23. Retrieved 2011-08-18.
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 "Luna 1", How it Works, no. 22, Imagine Publishing, p. 59, 2011-06-16

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