| Comet | C/2015 V2 (Johnson) |
|---|---|
| User | Artom |
| User`s name | Artyom Novichonok |
| Observation's time (UT) | 2017-03-25 20:45 |
| Tool | SW 8'' |
| Observation's place | Puhta fields |
| Magnitude | 9.7 |
| Comparison stars source | AQ - APASS catalog |
| Method | M - Morris`s method |
| Coma diameter(') | 3.6 |
| Tail's length | 6' |
| Condensation | 4/ |
| Positional angle of tail | 310 |
| Bortl's scale | 2.5 |
| Aperture | 20 cm |
| Focal length (mm) | 1000 |
| Type of tool | L - Newtonian reflector |
| Magnification | 66.7 |
| Field of view (°) | 0.9 |
| SQM-L in zenith | 21.48 |
| Light pollution zone | Blue |
| Lm | |
| Comment | Outer diffuse gas coma is good visible now. |
| Morris Format | 2017 Mar 25.86 UT: m1=9.7, Dia.=3.6', DC=4.5, Tail: 6 arcmin, in PA 310 deg ...20-cm L (66.7x) ...Artyom Novichonok (Puhta fields, Russia) |
