| Comet | 123P/West-Hartley |
|---|---|
| User | Piotr Guzik |
| User`s name | Piotr Guzik |
| Observation's time (UT) | 2004-02-21 00:28:00 |
| Tool | Not set |
| Observation's place | |
| Magnitude | 13.7 |
| Comparison stars source | |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 0.5 |
| Tail's length | Not set |
| Condensation | |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 20.3 cm |
| Focal length (mm) | 1218 |
| Type of tool | L - Newtonian reflector |
| Magnification | 125 |
| Field of view (°) | Not set |
| SQM-L in zenith | Not set |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 2004 Feb 21.02 UT: m1=13.7, Dia.=0.5' ...20.3-cm (125x) ...Piotr Guzik (, ) |
