| Comet | 21P/Giacobini-Zinner |
|---|---|
| User | Artom |
| User`s name | Artyom Novichonok |
| Observation's time (UT) | 2018-08-15 21:50:00 |
| Tool | SW 80ED |
| Observation's place | Fedotovo, Karelia |
| Magnitude | 8.2 |
| Comparison stars source | TK - Tycho-2 Catalogue |
| Method | M - Morris`s method |
| Coma diameter(') | 5 |
| Tail's length | 3' |
| Condensation | 6 |
| Positional angle of tail | 255 |
| Bortl's scale | 2.5 |
| Aperture | 8 cm |
| Focal length (mm) | 600 |
| Type of tool | R - Refractor |
| Magnification | 24 |
| Field of view (°) | 0 |
| SQM-L in zenith | 20.35 |
| Light pollution zone | Gray |
| Lm | |
| Comment | 9 C; bright astronomical twilight (Sun -13.5). Комета легко видна в бинокль 10х50, но оценка блеска осложнена (потенциально завышена) из-за её расположения в Млечном Пути. |
| Morris Format | 2018 Aug 15.91 UT: m1=8.2, Dia.=5', DC=6, Tail: 3 arcmin, in PA 255 deg ...8-cm R (24x) ...Artyom Novichonok (Fedotovo, Karelia, Russia) |
