Magnitudes Graph
m1 = 15.0 + 5 log d + 5.0 log r [ ,-100] ( - 1990 July 20)
m1 = 9.8 + 5 log d + 25 log r [-100, -45] (1990 July 20 - 1990 Sept.13)
m1 = 10.3 + 5 log d + 7.0 log r [ -45, 20] (1990 Sept.13 - 1990 Nov. 17)
m1 = 12.3 + 5 log d + 15.7 log r [ 20, 100] (1990 Nov. 17 - 1991 Feb. 5)
m1 = 15.0 + 5 log d + 5.0 log r [ 100, ] (1991 Feb. 5 - )
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