| Total | |
|---|---|
| Number of active observers: (total includes noncontributing observers) |
204 of 3230 |
| Number of active associations: (total includes noncontributing associations) |
2 of 18 |
| Number of observed comets: (total is number of comets in COBS database) |
438 of 2618 |
| Total number of observations: | 22504 |
| Visual Observations: | 20354 |
| CCD Observations: | 2150 |
| Comet type | Total | Visual | CCD |
|---|
| Year | Total | Visual | CCD | Obs |
|---|
| Comet | Total | Visual | CCD | Obs |
|---|
| Observer | Total | Visual | CCD | Obs |
|---|
| Association | Total | Visual | CCD | Obs |
|---|