| Total | |
|---|---|
| Number of active observers: (total includes noncontributing observers) |
30 of 3028 |
| Number of active countries: (total includes noncontributing countries) |
2 of 249 |
| Number of observed comets: (total is number of comets in COBS database) |
136 of 2477 |
| Total number of observations: | 946 |
| Visual Observations: | 520 |
| CCD Observations: | 426 |
| Comet type | Total | Visual | CCD |
|---|
| Year | Total | Visual | CCD | Obs |
|---|
| Comet | Total | Visual | CCD | Obs |
|---|
| Observer | Total | Visual | CCD | Obs |
|---|
| Country | Total | Visual | CCD | Obs |
|---|