| Comet | 21P/Giacobini-Zinner |
|---|---|
| User | Marco Goiato |
| User`s name | Marco Antonio Coelho Goiato |
| Observation's time (UT) | 2018-10-22 05:30:00 |
| Tool | Telescópio |
| Observation's place | Araçatuba |
| Magnitude | 10.0: |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 2.5 |
| Tail's length | Not set |
| Condensation | 3 |
| 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 | 160 |
| Field of view (°) | 0 |
| SQM-L in zenith | |
| Light pollution zone | Yellow |
| Lm | |
| Comment | Very near a star with m1:8.28 |
| Morris Format | 2018 Oct 22.23 UT: m1=10.0:, Dia.=2.5', DC=3 ...22-cm L (160x) ...Marco Antonio Coelho Goiato (Araçatuba, Brazil) |
