intensity of radiation from a star is inversely proportional to distance from star squared
stefans law
total electromagnetic radiation energy emitted per unit time by a black body is given by P=AOt4
wiens law
wavelength of peak emission from black body is inversely proportional to absolute temp of the body
what is the relationship between spectral intensity and wavelength for a black body spectrum
inversely proportional
black bodies
absorb all radiation and very good emitters of radiation
stellar spectrum
stars emit light as a continuous spectrum of radiation from the gases at the starts surface, light must pass through the gas in stars atmosphere atoms absorb some of wavelength of light, this leaves absorption lines
