The Hubble Constant is a value that corresponds to the expanding Universe. While constantly being refined, the value for Hubble's Constant is around 71 km/s/Mpc. Hubble's Law: We can use this law to determine distance to a galaxy: To determine the value of v, we can use the formula for determining redshift: then use:
Relation between the wavelength of the black-body radiation curve peak and the temperature
In physics, Wien's displacement law states that the black-body radiation curve for different temperatures will peak at different wavelengths that are inversely proportional to the temperature. The shift of that peak is a direct consequence of the Planck radiation law, which describes the spectral brightness or intensity of black-body radiation as a function of wavelength at any given temperature. Wikipedia
