| Comet | 21P/Giacobini-Zinner |
|---|---|
| User | slava03 |
| User`s name | Vyacheslav Ivanov |
| Observation's time (UT) | 1998-10-23 16:20:00 |
| Tool | "Мицар" |
| Observation's place | Поле |
| Magnitude | 9.6 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 3.5 |
| Tail's length | Not set |
| Condensation | 5 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 11 cm |
| Focal length (mm) | 805.85 |
| Type of tool | L - Newtonian reflector |
| Magnification | 32.2 |
| Field of view (°) | 1.55 |
| SQM-L in zenith | Not set |
| Light pollution zone | Green |
| Lm | Not set |
| Comment | |
| Morris Format | 1998 Oct 23.68 UT: m1=9.6, Dia.=3.5', DC=5 ...11-cm L (32.2x) ...Vyacheslav Ivanov (Поле, Russia) |
