| Comet | 46P/Wirtanen |
|---|---|
| User | Marco Goiato |
| User`s name | Marco Antonio Coelho Goiato |
| Observation's time (UT) | 2018-12-20 02:00:00 |
| Tool | 7 x 50 B |
| Observation's place | Araçatuba |
| Magnitude | 4.2 |
| Comparison stars source | YG - Yale Bright Star Catalogue |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 45 |
| Tail's length | Not set |
| Condensation | 3/ |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 5 cm |
| Focal length (mm) | Not set |
| Type of tool | B - Binoculars |
| Magnification | 7 |
| Field of view (°) | 6 |
| SQM-L in zenith | |
| Light pollution zone | Yellow |
| Lm | |
| Comment | Moonlight |
| Morris Format | 2018 Dec 20.08 UT: m1=4.2, Dia.=45', DC=3.5 ...5-cm B (7x) ...Marco Antonio Coelho Goiato (Araçatuba, Brazil) |
