| Comet | 41P/Tuttle-Giacobini-Kresak |
|---|---|
| User | Dmitry |
| User`s name | Dmitriy Bulgakov |
| Observation's time (UT) | 2017-03-21 21:20 |
| Tool | Binoculars 15x70 |
| Observation's place | Мистолово (Mistola Hills) |
| Magnitude | 8.9 |
| Comparison stars source | HJ - Magnitudes in the Hipparcos photometric system |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 13 |
| Tail's length | Not set |
| Condensation | 2 |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 7 cm |
| Focal length (mm) | Not set |
| Type of tool | B - Binoculars |
| Magnification | 15 |
| Field of view (°) | 4.4 |
| SQM-L in zenith | |
| Light pollution zone | Orange |
| Lm | |
| Comment | |
| Morris Format | 2017 Mar 21.89 UT: m1=8.9, Dia.=13', DC=2 ...7-cm B (15x) ...Dmitriy Bulgakov (Мистолово (Mistola Hills), ) |
