The refraction is the phenomenon that the path of infrared from celestial bodies will be bend because of the atmosphere and its window of infrared. Light clouds easily keep out the lights from celestial bodies, but the infrared may go through the light clouds and atmosphere when it is observed at any part of the earth. Therefore locating by the ray of infrared from celestial bodies is noticed day after day. It is necessary to get the modification of the refraction of infrared ray from the celestial bodies when the infrared ray determines the position of observer. The practical theoretical calculation and correction methods for the refraction ρ of the celestial bodies for certain wavelength are presented.