| Comet | 21P/Giacobini-Zinner |
|---|---|
| User | astroivan |
| User`s name | Ivan Sergey |
| Observation's time (UT) | 2018-08-18 20:30:00 |
| Tool | 200 mm |
| Observation's place | Molodechno |
| Magnitude | 8.0 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | B - Bobrovnikoff`s method |
| Coma diameter(') | 4 |
| Tail's length | 6' |
| Condensation | 5 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 20 cm |
| Focal length (mm) | 1000 |
| Type of tool | L - Newtonian reflector |
| Magnification | 40 |
| Field of view (°) | 1.3 |
| SQM-L in zenith | |
| Light pollution zone | Green |
| Lm | 5.8 |
| Comment | |
| Morris Format | 2018 Aug 18.85 UT: m1=8.0, Dia.=4', DC=5, Tail: 6 arcmin ...20-cm L (40x) ...Ivan Sergey (Molodechno, Belarus) |
