| Comet | 46P/Wirtanen |
|---|---|
| User | Peter_Pskov |
| User`s name | Petr Mitrofanov |
| Observation's time (UT) | 2018-12-17 00:20 |
| Tool | Невооруженный глаз (очки, -5 дптр). |
| Observation's place | Cherniakovitsi |
| Magnitude | 4.9 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | I - Variable stars (without defocusing) |
| Coma diameter(') | 30 |
| Tail's length | Not set |
| Condensation | 3/ |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | cm |
| Focal length (mm) | Not set |
| Type of tool | E - Naked eye |
| Magnification | Not set |
| Field of view (°) | Not set |
| SQM-L in zenith | |
| Light pollution zone | Green |
| Lm | 5.6 |
| Comment | Cirrus |
| Morris Format | 2018 Dec 17.01 UT: m1=4.9, Dia.=30', DC=3.5...Naked Eye ...Petr Mitrofanov (Cherniakovitsi, Russia) |
