* Stars emit radiation across a wide spectrum: Stars emit light and radiation across a broad range of wavelengths, from radio waves to gamma rays.
* Peak frequency depends on temperature: The peak frequency of a star's radiation is determined by its surface temperature. This is described by Wien's Displacement Law: λ_max = b/T, where:
* λ_max is the wavelength of peak emission
* b is Wien's displacement constant
* T is the star's surface temperature
* Stars have different temperatures: Stars come in a huge range of temperatures, from cool red dwarfs to incredibly hot blue giants. This means their peak frequencies vary dramatically.
Examples:
* Red dwarf stars: Coolest stars, emit primarily in the infrared, with a peak frequency in the far-infrared.
* Our Sun (a yellow dwarf): Peak frequency is in the visible light spectrum, around green.
* Blue giant stars: Hottest stars, peak frequency is in the ultraviolet range.
Therefore, to find the peak frequency of a particular star, you need to know its surface temperature.
