| Comet | C/2015 V2 (Johnson) |
|---|
| User | Sergey Shurpakov |
|---|
| User`s name | Sergey Shurpakov |
|---|
| Observation's time (UT) | 2017-05-12 20:52:00 |
|---|
| Observation's place | Not set |
|---|
| Comparison stars source | ICQ: U0.But this catalogue hasn`t been submited into database |
|---|
| Method | C |
|---|
| Magnitude | 9.7 |
|---|
| Mag Error | Not set |
|---|
| Coma diameter(') | 2.80 |
|---|
| Tail's length | Not set |
|---|
| Coma degree of condensation | 7 |
|---|
| Positional angle of tail (°) | Not set |
|---|
| Aperture | 7 cm |
|---|
| Telescope focal length (mm) | 280 |
|---|
| Telecope Type | R |
|---|
| Exposure of single frame (sec) | 60 |
|---|
| Phot Region | |
|---|
| Software (with version) | ICQ: A32. Astrometrica 3.25 |
|---|
| Stars Exposure | Not set |
|---|
| Photometric-aperture size | ○ 2.80' |
|---|
| Camera | QHY |
|---|
| Chip | ICX |
|---|
| Chip blooming | |
|---|
| Number of images | Not set |
|---|
| Magnitude of the comparison star closest in brightness | 10.2 |
|---|
| Calibration methods | dark-subtracted (and bias-subtracted) |
|---|
| Pixel size width | 4.4" |
|---|
| Pixel size height | 4.4" |
|---|
| Light pollution zone | Not set |
|---|
| Lm | Not set |
|---|
| SQM-L in zenith | Not set |
|---|
| Observatory code | |
|---|
| Comment | Not set |
|---|
