| Comet | 21P/Giacobini-Zinner |
|---|---|
| User | Artom |
| User`s name | Artyom Novichonok |
| Observation's time (UT) | 2018-07-22 22:33:00 |
| Tool | Celestron 6'' |
| Observation's place | Simeiz observatory |
| Magnitude | 9.3 |
| Comparison stars source | AE - Planetary magnitudes from the American Ephemeris and Nautical Almanac |
| Method | M - Morris`s method |
| Coma diameter(') | 4.4 |
| Tail's length | Not set |
| Condensation | 5/ |
| Positional angle of tail | Not set |
| Bortl's scale | 4.5 |
| Aperture | 15 cm |
| Focal length (mm) | 750 |
| Type of tool | L - Newtonian reflector |
| Magnification | 30 |
| Field of view (°) | 0 |
| SQM-L in zenith | 20.95 |
| Light pollution zone | Green |
| Lm | |
| Comment | |
| Morris Format | 2018 Jul 22.94 UT: m1=9.3, Dia.=4.4', DC=5.5 ...15-cm L (30x) ...Artyom Novichonok (Simeiz observatory, Russia) |
