| Comet | 17P/Holmes |
|---|---|
| User | Piotr Guzik |
| User`s name | Piotr Guzik |
| Observation's time (UT) | 2008-01-31 19:40:00 |
| Tool | Not set |
| Observation's place | |
| Magnitude | 4.2 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 70 |
| Tail's length | Not set |
| Condensation | 1 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 0 cm |
| Focal length (mm) | 0 |
| Type of tool | E - Naked eye |
| Magnification | 1 |
| Field of view (°) | Not set |
| SQM-L in zenith | Not set |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 2008 Jan 31.82 UT: m1=4.2, Dia.=70', DC=1 ...0-cm (1x) ...Piotr Guzik (, ) |
