The Sun
As the nearest star, the Sun is the brightest radiation source in most frequencies, down to the radio spectrum at 300 MHz (1 m wavelength). When the sun is quiet, the galactic background noise dominates at longer wavelengths. During geomagnetic storms, the sun will dominate even at these low frequencies.
Read more about this topic: Astronomical Radio Source
Famous quotes containing the word sun:
“Only the desert has a fascination—to ride alone—in the sun in the forever unpossessed country—away from man. That is a great temptation.”
—D.H. (David Herbert)
“One generation passeth away, and another generation cometh: but the earth abideth for ever. The sun also ariseth, and the sun goeth down, and hasteth to the place where he arose.”
—Bible: Hebrew Ecclesiastes, 1:4-5.
Ernest Hemingway took the title The Sun Also Rises (1926)