| Comet | C/2015 V2 (Johnson) |
|---|
| User | Artom |
|---|
| User`s name | Artyom Novichonok |
|---|
| Observation's time (UT) | 2016-05-25 21:36:00 |
|---|
| Observation's place | Not set |
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| Comparison stars source | ICQ: UO. USNO A2.0 catalogue R magnitudes |
|---|
| Method | C |
|---|
| Magnitude | 14.9 |
|---|
| Mag Error | Not set |
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| Coma diameter(') | 0.33 |
|---|
| Tail's length | Not set |
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| Coma degree of condensation | 7.5 |
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| Positional angle of tail (°) | Not set |
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| Aperture | 20.0 cm |
|---|
| Telescope focal length (mm) | 1800 |
|---|
| Telecope Type | R |
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| Exposure of single frame (sec) | 60 |
|---|
| Phot Region | comparison stars are in the same frame as a comet |
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| Software (with version) | ICQ: AFo. Astrometrica used with Focas software |
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| Stars Exposure | Not set |
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| Photometric-aperture size | ☐ 0.50' |
|---|
| Camera | STM |
|---|
| Chip | K32 |
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| Chip blooming | |
|---|
| Number of images | >=9 |
|---|
| Magnitude of the comparison star closest in brightness | Not set |
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| Calibration methods | dark-subtracted (and bias-subtracted) + flat-field corrected (flat-fielded) |
|---|
| Pixel size width | 1.9" |
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| Pixel size height | 1.9" |
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| Light pollution zone | Not set |
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| Lm | Not set |
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| SQM-L in zenith | Not set |
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| Observatory code | |
|---|
| Comment | Not set |
|---|
