| Comet | C/2017 O1 (ASASSN) |
|---|---|
| User | Alexsandr Morozov |
| User`s name | Alexsandr Morozov |
| Observation's time (UT) | 2017-09-21 22:21 |
| Tool | телескоп SW 130650 eq2 |
| Observation's place | Sukhinichi |
| Magnitude | 9.4 |
| Comparison stars source | HJ - Magnitudes in the Hipparcos photometric system |
| Method | S - Sidgwick`s method |
| Coma diameter(') | 4 |
| Tail's length | Not set |
| Condensation | 2/ |
| Positional angle of tail | Not set |
| Bortl's scale | Not set |
| Aperture | 13 cm |
| Focal length (mm) | 650 |
| Type of tool | L - Newtonian reflector |
| Magnification | 65 |
| Field of view (°) | 0.77 |
| SQM-L in zenith | |
| Light pollution zone | |
| Lm | 5.95 |
| Comment | |
| Morris Format | 2017 Sep 21.93 UT: m1=9.4, Dia.=4', DC=2.5 ...13-cm L (65x) ...Alexsandr Morozov (Sukhinichi, Russia) |
