Using SI Units in Astronomy

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Some people even focus on amateur telescope making as their primary interest within the hobby of amateur astronomy. Electromagnetic Spectrum – The range of all kinds of wavelengths of electromagnetic radiation. After a few days, they will notice that the shape of the moon is changing. Two other Kuiper belt objects, Makemake and Haumea, were also designated as dwarf planets. Keep in mind that Earth’s orbit is so close to being a perfect circle that its perihelion distance is 0.98 AU, where 1 AU (astronomical unit) is defined as the average Earth-Sun distance.

Pages: 0

Publisher: Cambridge University Press (December 5, 2011)

ISBN: 1139019791

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