| Comet | C/2009 F6 (Yi-SWAN) |
|---|---|
| User | slava03 |
| User`s name | Vyacheslav Ivanov |
| Observation's time (UT) | 2009-04-29 19:25:00 |
| Tool | 8" Ньютон |
| Observation's place | Поле |
| Magnitude | 9 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 2 |
| Tail's length | Not set |
| Condensation | 4 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 20.3 cm |
| Focal length (mm) | 1000 |
| Type of tool | L - Newtonian reflector |
| Magnification | 50 |
| Field of view (°) | 1.44 |
| SQM-L in zenith | Not set |
| Light pollution zone | Green |
| Lm | Not set |
| Comment | |
| Morris Format | 2009 Apr 29.81 UT: m1=9, Dia.=2', DC=4 ...20.3-cm L (50x) ...Vyacheslav Ivanov (Поле, Russia) |
