CCD Observation's detail view 3287
| Comet | C/2015 V2 (Johnson) |
|---|---|
| User | Artom |
| User`s name | Artyom Novichonok |
| Observation's time (UT) | 2016-04-28 21:21:00 |
| Observation's place | Not set |
| Comparison stars source | ICQ: AQ. APASS Catalogue |
| Method | C |
| Magnitude | 15.3 |
| Mag Error | 0.13 |
| Coma diameter(') | 0.28 |
| Tail's length | Not set |
| Coma degree of condensation | 7.5 |
| Positional angle of tail (°) | Not set |
| Aperture | 20.0 cm |
| Telescope focal length (mm) | 1800 |
| Telecope Type | R |
| Exposure of single frame (sec) | 60 |
| Phot Region | comparison stars are in the same frame as a comet |
| Software (with version) | ICQ: MIm. MaximDL |
| Stars Exposure | Not set |
| Photometric-aperture size | ○ 0.41' |
| Camera | STM |
| Chip | K32 |
| Chip blooming | |
| Number of images | Σ>=9 |
| Magnitude of the comparison star closest in brightness | 14.7 |
| Calibration methods | dark-subtracted (and bias-subtracted) + flat-field corrected (flat-fielded) |
| Pixel size width | 1.9" |
| Pixel size height | 1.9" |
| Light pollution zone | Not set |
| Lm | Not set |
| SQM-L in zenith | Not set |
| Observatory code | |
| Comment | Not set |