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Ballistic capture was first used by the Japanese spacecraft Hiten in 1991 as a method to get to the Moon. [3] [4] [5] This was designed by Edward Belbruno and J. Miller. [3] [5] The ballistic capture transfer that performed this is an exterior ballistic capture transfer since it goes beyond the Earth-Moon distance. An interior ballistic capture ...
These factors include the location of the Moon in the sky, the relative motion of Earth and the Moon, Earth's rotation, lunar libration, polar motion, weather, speed of light in various parts of air, propagation delay through Earth's atmosphere, the location of the observing station and its motion due to crustal motion and tides, and ...
The Moon almost constantly occults faint stars as it orbits the Earth but because even a young Moon appears immensely brighter than these stars, these events are difficult to observe using amateur telescopes. However, the Moon does frequently occult brighter stars and even planets due to its close proximity to the ecliptic.
APOLLO shooting a laser at the Moon. The laser pulse is reflected from the retroreflectors on the Moon (see below) and returned to the telescope. The round-trip time tells the distance to the Moon to great accuracy. In this picture the Moon is very over-exposed, needed to make the laser beam visible. Apollo 15 Lunar Ranging Retro-Reflector (LRRR).
Like Apollo 8, Apollo 10 orbited the Moon but did not land. A list of sightings of Apollo 10 were reported in "Apollo 10 Optical Tracking" by Sky & Telescope magazine, July 1969, pp. 62–63. [17] During the Apollo 10 mission The Corralitos Observatory was linked with the CBS news network. Images of the spacecraft going to the Moon were ...
It can be seen that the measured range is 238,000 mi (383,000 km), approximately the distance from the Earth to the Moon. QSL card for reception reports. Project Diana, named for the Roman moon goddess Diana, was an experimental project of the US Army Signal Corps in 1946 to bounce radar signals off the Moon and receive the reflected signals. [1]
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Concept of operations for building LCRT. The Lunar Crater Radio Telescope (LCRT) is a proposal by the NASA Institute for Advanced Concepts (NIAC) to create an ultra-long-wavelength (that is, wavelengths greater than 10 m, corresponding to frequencies below 30 MHz) radio telescope inside a lunar crater on the far side of the Moon.