| Comet | C/2002 Y1 (Juels-Holvorcem) |
|---|---|
| User | Piotr Guzik |
| User`s name | Piotr Guzik |
| Observation's time (UT) | 2003-02-12 23:31:00 |
| Tool | Not set |
| Observation's place | |
| Magnitude | 7.9 |
| Comparison stars source | |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 8 |
| Tail's length | Not set |
| Condensation | 3 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 5 cm |
| Focal length (mm) | 0 |
| Type of tool | B - Binoculars |
| Magnification | 10 |
| Field of view (°) | Not set |
| SQM-L in zenith | Not set |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 2003 Feb 12.98 UT: m1=7.9, Dia.=8', DC=3 ...5-cm (10x) ...Piotr Guzik (, ) |
