Comet 60P: size estimation (coma+tail)
DX= 208 DY= 373 pixels
Distance (Pixels) : 427.07
Point #1 : X1=142 Y1=47
11h36m32.750s -05°54’48.85”
Point #2 : X2=349 Y2=419
11h35m45.315s -05°48’48.02”
Distance into the SKY (Angle) : 00°13’14”= 0.2167 deg
1 deg = 3.14/180 radian
0.2167 deg = 0.00378 radian
Comet geocentric distance = 0.8437 au
Estimated length of comet (coma + tail) = 0.00378 x 0.8437 = 0.00319 au
Which mean = 477217 Km
Cepheid Observatory, RBT, India
Vorion Scientific Observatory, AHD, India
