5
  The ratio of the absolute values with respect to υ results in
   υ3/ υ1= [5 V1 × 4m1/(7r1)2] / [V1 × m1/r12]
 Thus, expressing v3 in terms of υ,
   υ3 = [5 × 4 × r12 / (7r1)2] υ
      = [5 × 4 / 49] υ
 In the table in Figure 3, if υ1 × υ, then υ3 would be
   υ3 = (20 / 49) υ1.
 Following the same logic using m2 as another example, υ2 can be obtained as υ2 = (4 / 25)υ1.
 The compositions of υ1, υ2 and υ3 (each represents the travel speed of the gravitational field that reaches the origin from the celestial body) are determined by vector composition as shown in Figure 3(b).
 This is shown to be same as V1 in Figure 2, as the length of υ is indicated by the expanded Figure 3(b).
 First, a parallelogram is constructed to combine vectors υ2 and υ3 to form υ2 + υ3. Then, using the same parallelogram construction method, this combined vector and υ1 are combined to obtain υ. Bold letters indicate vector values.
 This gravitational field movement υ reaches the origin point is the movement of the frame of light. Coordinates with the same speed as υ have a gravitational field movement speed of 0 from all celestial bodies. This frame is the absolute frame for light at the origin point and definitely the background for light speed.
 The general formula is as follows.
        …………(2.2.1)   
  (G (m3/kg sec2) is the universal gravitational constant, K (sec2/m) is a given value).
 If total amount of all gravitational field from each celestial body is α, that is
    α = G mi/ri2 .
 Then, no contradiction exists because K = 1/α.
 Or, maybe
        (2.2.2) 
 Here, if the universal gravitational constant G is very eternal, it will be
        (2.2.3) 

 3.  Results and Discussion
 Since an understanding about the velocity of light in a main subject differs from the conventional thing, there is neither pioneering literature nor a proposal. So, argument cannot but take place from ourselves.


 3.1. Absolutely still space
 According to our concept, celestial bodies are always in motion and change speeds constantly. Thus, their distance to one point in space is continually changing. Therefore, the rest frame of light has a different speed depending on the location of the space. This will probably correspond to the absolute rest frame of the objects. In other words, absolute rest frames are not uniformly stationary in all locations in space. Rather, each location has its own absolute rest frame in each moment. These rest frames have relative speed compared with absolute rest frames in other locations. In this sense, these frames should be referred to as relative rest frames.
 However, the distance between one celestial body and another is normally very far, and because their relationship involves an inverse square, the influence is minute. In addition, with numerous celestial bodies in existence, influences will likely be mutually offset and equalized. Therefore, even if small celestial bodies moved to some extent, it would mostly be correct to assume the rest frame of light in the vicinity is absolutely still. This is particularly true for frames without mass. Therefore, on Earth or another planet, the planet is the background for the velocity of light. As the distance from the planet increases, the sun gradually becomes the background for the velocity of light.