Light curve of C/2013 X1 (PANSTARRS)

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Time
Time from peri
Log R
R
 Magnitude
m-5logD
Coma
Coma (linear)
Condensation
Mean values in days
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Comet
Comet; Fixed coefficient for logr:
Asteroid
Asteroid; Fixed coefficient G:

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m= 5.8 + 5logd + 9logr    [ -inf , -107 ]
m= 16 + 5logd + -30logr    [ -107 , -87 ]
m= 5.2 + 5logd + 9logr    [ -87 , inf ]