| Total | |
|---|---|
| Number of active observers: (total includes noncontributing observers) |
204 of 3313 |
| Number of active associations: (total includes noncontributing associations) |
2 of 18 |
| Number of observed comets: (total is number of comets in COBS database) |
445 of 2671 |
| Total number of observations: | 23271 |
| Visual Observations: | 20510 |
| CCD Observations: | 2761 |
| 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 |
|---|