By Richard Schmude Jr.
Эта книга описывает различные искусственные спутники, которые можно наблюдать даже не вооружённым взглядом, от Международной Космической Станции и до всевозможных спутников-шпионов разных стран. Ричард Шмуде подробно их описывает, как они могут наблюдаться любителями, как их распознать, и как предсказать их орбиты, как их сфотографировать и какие исследования доступны любителям при таких наблюдениях.
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Extra resources for Artificial satellites and how to observe them
This mission is illustrated in Fig. 3. Japan’s Hayabusa spacecraft carried out a rendezvous mission. It traveled alongside of asteroid 25143 Itokawa. It also released a small lander, which touched down on the surface of the asteroid. This soft landing also represents a rendezvous event. 32 Scientific Satellite Spacecraft Fig. 2. The long range reconnaissance imager (LORRI) on the New Horizons spacecraft took this image of Jupiter’s moon Io on March 1, 2007 (Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute).
2002) g Value of k is approximate because of Eros’ irregular shape b It takes a satellite less time to orbit our Moon than Earth. This is because our Moon’s gravity is weaker. 5) ( ) In this equation, P is the orbital period in days, a is the average distance to a body’s center in km and k is a constant. 6. 7 lists the ﬁrst satellites to orbit other Solar System bodies. Lagrangian Points In 1772, Joseph Lagrange demonstrated that in the presence of two high-mass bodies, m1 and m2, a third body, m3, may remain in a stable position.
In this chapter, we will give an overview of the different types of spacecraft missions. Afterwards, we will describe seven speciﬁc spacecraft in detail. These seven and the countries/agencies that launched them are: Chang’e-1 (China), Chandrayaan-1 (India), Hayabusa (Japan), Hubble Space Telescope (United States), Cassini (United States and the European Space Agency), Spektr-R (Russia) and Gaia (European Space Agency). 1 lists the advantages and disadvantages of the ﬂyby, rendezvous, orbiter, lander, sample return and human missions.
Artificial satellites and how to observe them by Richard Schmude Jr.