| Comet | 21P/Giacobini-Zinner |
|---|---|
| User | Marco Goiato |
| User`s name | Marco Antonio Coelho Goiato |
| Observation's time (UT) | 2018-10-06 06:00:00 |
| Tool | Telescópio |
| Observation's place | Araçatuba |
| Magnitude | 8.9 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 4.5 |
| Tail's length | Not set |
| Condensation | 4/ |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 22 cm |
| Focal length (mm) | 1440 |
| Type of tool | L - Newtonian reflector |
| Magnification | 57.6 |
| Field of view (°) | 0 |
| SQM-L in zenith | |
| Light pollution zone | Yellow |
| Lm | |
| Comment | |
| Morris Format | 2018 Oct 6.25 UT: m1=8.9, Dia.=4.5', DC=4.5 ...22-cm L (57.6x) ...Marco Antonio Coelho Goiato (Araçatuba, Brazil) |
