| Comet | 17P/Holmes |
|---|---|
| User | Artom |
| User`s name | Artyom Novichonok |
| Observation's time (UT) | 2008-01-04 15:36:00 |
| Tool | BPC 7x50 |
| Observation's place | Kondopoga |
| Magnitude | 3.9 |
| Comparison stars source | YG - Yale Bright Star 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 | 6 |
| Aperture | 5 cm |
| Focal length (mm) | Not set |
| Type of tool | B - Binoculars |
| Magnification | 7 |
| Field of view (°) | 6 |
| SQM-L in zenith | Not set |
| Light pollution zone | Orange |
| Lm | 4.5 |
| Comment | |
| Morris Format | 2008 Jan 4.65 UT: m1=3.9, Dia.=70', DC=1 ...5-cm B (7x) ...Artyom Novichonok (Kondopoga, Russia) |
