| Comet | C/2015 V2 (Johnson) |
|---|
| User | Artom |
|---|
| User`s name | Artyom Novichonok |
|---|
| Observation's time (UT) | 2016-02-25 20:24:00 |
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| Observation's place | Not set |
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| Comparison stars source | ICQ: UO. USNO A2.0 catalogue R magnitudes |
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| Method | C |
|---|
| Magnitude | 15.6: |
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| Mag Error | Not set |
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| Coma diameter(') | 0.30 |
|---|
| Tail's length | Not set |
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| Coma degree of condensation | Not set |
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| Positional angle of tail (°) | Not set |
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| Aperture | 70.0 cm |
|---|
| Telescope focal length (mm) | 2800 |
|---|
| Telecope Type | C |
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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 | Ap7 |
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| Chip | |
|---|
| Chip blooming | |
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| Number of images | 3 |
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| 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) |
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| Pixel size width | 1.8" |
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| Pixel size height | 1.8" |
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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 |
|---|
