Abstract
If we had eyes sensitive to radio waves at a frequency of 100 MHz,86 then the sky would usually contain three main objects of roughly equal brightness: Cassiopeia A, Cygnus A and the Sun. The first two of these are a supernova remnant and a radio galaxy respectively and are more or less constant in their output. However, on occasions the Sun can brighten by a factor of 10,000, and dominate the radio sky just as it does the optical sky.
Megahertz or a million cycles per second. The equivalent wavelength is 3 metres.
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© 2002 Springer-Verlag London
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Kitchin, C. (2002). Radio Telescopes. In: Solar Observing Techniques. Patrick Moore’s Practical Astronomy series. Springer, London. https://doi.org/10.1007/978-1-4471-0145-1_9
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DOI: https://doi.org/10.1007/978-1-4471-0145-1_9
Publisher Name: Springer, London
Print ISBN: 978-1-85233-035-4
Online ISBN: 978-1-4471-0145-1
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