| Comet | 21P/Giacobini-Zinner |
|---|---|
| User | Alexsandr Morozov |
| User`s name | Alexsandr Morozov |
| Observation's time (UT) | 2018-09-17 00:15 |
| Tool | телескоп SW 10 dob |
| Observation's place | Sukhinichi |
| Magnitude | 7.7 |
| Comparison stars source | |
| Method | M - Morris`s method |
| Coma diameter(') | 4 |
| Tail's length | 7' |
| Condensation | 5 |
| Positional angle of tail | 290 |
| Bortl's scale | Not set |
| Aperture | 25.4 cm |
| Focal length (mm) | 1200 |
| Type of tool | L - Newtonian reflector |
| Magnification | 48 |
| Field of view (°) | 0.83 |
| SQM-L in zenith | |
| Light pollution zone | Green |
| Lm | 6.19 |
| Comment | |
| Morris Format | 2018 Sep 17.01 UT: m1=7.7, Dia.=4', DC=5, Tail: 7 arcmin, in PA 290 deg ...25.4-cm L (48x) ...Alexsandr Morozov (Sukhinichi, Russia) |
