| Comet | C/2015 V2 (Johnson) |
|---|
| User | Artom |
|---|
| User`s name | Artyom Novichonok |
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| Observation's time (UT) | 2016-07-23 19:12:00 |
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| Observation's place | Not set |
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| Comparison stars source | ICQ: UO. USNO A2.0 catalogue R magnitudes |
|---|
| Method | C |
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| Magnitude | 14.2 |
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| Mag Error | 0.04 |
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| Coma diameter(') | 0.43 |
|---|
| Tail's length | 0.5' |
|---|
| Coma degree of condensation | 7 |
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| Positional angle of tail (°) | 278 |
|---|
| Aperture | 50.0 cm |
|---|
| Telescope focal length (mm) | 1000 |
|---|
| Telecope Type | D |
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| Exposure of single frame (sec) | 60 |
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| 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 | ☐ 1.00' |
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| Camera | FL9 |
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| Chip | KA9 |
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| Chip blooming | Anti Blooming Gate |
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| Number of images | Σ8 |
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| Magnitude of the comparison star closest in brightness | 15.1 |
|---|
| Calibration methods | dark-subtracted (and bias-subtracted) + flat-field corrected (flat-fielded) |
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| Pixel size width | 2.6" |
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| Pixel size height | 2.6" |
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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 | |
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| Comment | Not set |
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