| Comet | 123P/West-Hartley
|
|---|
| User | Taras Prystavski |
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| User`s name | Taras Prystavski |
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| Observation's time (UT) | 2019-02-17 12:17:00 |
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| Observation's place | H06 iTelescope observatory, (remotely from Mayhill, U.S.A.) |
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| Comparison stars source | ICQ: UO. USNO A2.0 catalogue R magnitudes |
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| Method | C |
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| Magnitude | 12.6 |
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| Mag Error | Not set |
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| Coma diameter(') | 1.4 |
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| Tail's length | 2.6' |
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| Coma degree of condensation | Not set |
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| Positional angle of tail (°) | 272 |
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| Aperture | 106 cm |
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| Telescope focal length (mm) | 530 |
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| Telecope Type | R |
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| Exposure of single frame (sec) | 150 |
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| Phot Region | |
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| Software (with version) | ICQ: A41. Astrometrica 4.1 |
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| Stars Exposure | Not set |
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| Photometric-aperture size | 1.4 |
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| Camera | ICQ:CKD. Canon Kiss Digital camera |
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| Chip | |
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| Chip blooming | |
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| Number of images | 3 |
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| Magnitude of the comparison star closest in brightness | |
|---|
| Calibration methods | dark-subtracted (and bias-subtracted) + flat-field corrected (flat-fielded) |
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| Pixel size width | |
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| Pixel size height | |
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| Light pollution zone | |
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| Lm | |
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| SQM-L in zenith | |
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| Observatory code | H06 |
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| Comment | Not set |
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