| Comet | C/2009 P1 (Garradd) |
|---|---|
| User | Sd-mail |
| User`s name | Danil Sidorko |
| Observation's time (UT) | 2011-08-21 19:20 |
| Tool | AM130EQ |
| Observation's place | Korenovsk |
| Magnitude | 7.4 |
| Comparison stars source | AE - Planetary magnitudes from the American Ephemeris and Nautical Almanac |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 11 |
| Tail's length | Not set |
| Condensation | 5 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 13 cm |
| Focal length (mm) | 650 |
| Type of tool | L - Newtonian reflector |
| Magnification | 38.2 |
| Field of view (°) | 1.78 |
| SQM-L in zenith | |
| Light pollution zone | |
| Lm | Not set |
| Comment | |
| Morris Format | 2011 Aug 21.81 UT: m1=7.4, Dia.=11', DC=5 ...13-cm L (38.2x) ...Danil Sidorko (Korenovsk, Russia) |
