| Total | |
|---|---|
| Number of active observers: (total includes noncontributing observers) |
160 of 3237 |
| Number of active associations: (total includes noncontributing associations) |
12 of 18 |
| Number of active countries: (total includes noncontributing countries) |
29 of 249 |
| Total number of observations: | 1659 |
| Visual Observations: | 1478 |
| CCD Observations: | 181 |
| Comet type | Total | Visual | CCD |
|---|
| Year | Total | Visual | CCD | Obs |
|---|
| Observer | Total | Visual | CCD | Obs |
|---|
| Association | Total | Visual | CCD | Obs |
|---|
| Country | Total | Visual | CCD | Obs |
|---|