| Comet | 48P/Johnson
|
|---|
| User | Artom |
|---|
| User`s name | Artyom Novichonok |
|---|
| Observation's time (UT) | 2018-07-17 22:04:00 |
|---|
| Observation's place | Nauchny |
|---|
| Comparison stars source | ICQ: U4. UCAC4 photometry catalog |
|---|
| Method | C |
|---|
| Magnitude | 12.5 |
|---|
| Mag Error | Not set |
|---|
| Coma diameter(') | 1.8 |
|---|
| Tail's length | 10.6' |
|---|
| Coma degree of condensation | 7 |
|---|
| Positional angle of tail (°) | 258 |
|---|
| Aperture | 30 cm |
|---|
| Telescope focal length (mm) | 594 |
|---|
| Telecope Type | D |
|---|
| Exposure of single frame (sec) | 120 |
|---|
| Phot Region | |
|---|
| Software (with version) | ICQ: A48. Astrometrica 4.8 |
|---|
| Stars Exposure | Not set |
|---|
| Photometric-aperture size | 2.7 |
|---|
| Camera | Defined by user: FLI Proline PL09000 |
|---|
| Chip | |
|---|
| Chip blooming | |
|---|
| Number of images | 6 |
|---|
| Magnitude of the comparison star closest in brightness | |
|---|
| Calibration methods | dark-subtracted (and bias-subtracted) + flat-field corrected (flat-fielded) |
|---|
| Pixel size width | |
|---|
| Pixel size height | |
|---|
| Light pollution zone | Blue |
|---|
| Lm | |
|---|
| SQM-L in zenith | |
|---|
| Observatory code | L51 |
|---|
| Comment | Not set |
|---|
