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Light Curve of C/1999 T1 (LINEAR)
cf. Red line ; m1= 5.0 + 5 log D + 10 log r Light Curve OF C/1999 S4 (LINEAR)
cf. Red line ; m1= 7.0 + 5 log D + 10 log r Blue dotted line ; m1= 8.5 + 5 log D + 7 log r