Until today I've had the opportunity to observe and image 137 different comets.
The table below lists the individual observations of each of those comets.
Number of comets observed visually: 47
Number of visual observations: 197
Number of comets imaged: 117
Number of ccd observations: 326
Terminology:
magnitude: brightness estimate of the comet
coma: size estimate of the comet's coma, measured in arcminutes
condensation: degree of condensation (0=completely diffuse, 9=completely stellar)