| Comet | C/2017 S3 (PANSTARRS) | 
|---|---|
| User | Artom | 
| User`s name | Artyom Novichonok | 
| Observation's time (UT) | 2018-07-22 23:16:00 | 
| Tool | Celestron 6'' | 
| Observation's place | Simeiz observatory | 
| Magnitude | 9.2 | 
| Comparison stars source | AQ - APASS catalog | 
| Method | M - Morris`s method | 
| Coma diameter(') | 3.5 | 
| Tail's length | Not set | 
| Condensation | 2/ | 
| 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 | 50 | 
| Field of view (°) | 1.2 | 
| SQM-L in zenith | 20.95 | 
| Light pollution zone | Green | 
| Lm | |
| Comment | |
| Morris Format | 2018 Jul 22.97 UT: m1=9.2, Dia.=3.5', DC=2.5 ...15-cm L (50x) ...Artyom Novichonok (Simeiz observatory, Russia) |