| Comet | C/2015 V2 (Johnson) |
|---|
| User | Dmitry |
|---|
| User`s name | Dmitriy Bulgakov |
|---|
| Observation's time (UT) | 2017-03-24 23:50 |
|---|
| Tool | Explore Scientific Dob. 10" |
|---|
| Observation's place | Мистолово (Mistola Hills) |
|---|
| Magnitude | 9.2 |
|---|
| Comparison stars source | HJ - Magnitudes in the Hipparcos photometric system |
|---|
| Method | S - Sidgwick`s method |
|---|
| Coma diameter(') | 3 |
|---|
| Tail's length | Not set |
|---|
| Condensation | 2/ |
|---|
| Positional angle of tail | Not set |
|---|
| Bortl's scale | 5 |
|---|
| Aperture | 25 cm |
|---|
| Focal length (mm) | 1270 |
|---|
| Type of tool | L - Newtonian reflector |
|---|
| Magnification | 42.3 |
|---|
| Field of view (°) | 1.89 |
|---|
| SQM-L in zenith | |
|---|
| Light pollution zone | Yellow |
|---|
| Lm | |
|---|
| Comment | In the finder 8x50 the object could not be seen even with a side vision |
|---|
| Morris Format | 2017 Mar 24.99 UT: m1=9.2, Dia.=3', DC=2.5 ...25-cm L (42.3x) ...Dmitriy Bulgakov (Мистолово (Mistola Hills), ) |
|---|
