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:
“For the sun will shine in my back door some day.”
—Richard M. Jones (1892–1945)
“I would that the Boar without bristles had come from the West
And had rooted the sun and moon and stars out of the sky
And lay in the darkness, grunting, and turning to his rest.”
—William Butler Yeats (1865–1939)