| Comet | 103P/Hartley |
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| User | chergen |
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| User`s name | Carl Hergenrother |
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| Observation's time (UT) | 2010-10-17 10:48:00 |
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| Observation's place | Not set |
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| Comparison stars source | ICQ: TK. Tycho-2 Catalogue |
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| Method | Z |
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| Magnitude | 4.6 |
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| Mag Error | 0.3 |
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| Coma diameter(') | 71 |
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| Tail's length | 50' |
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| Coma degree of condensation | Not set |
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| Positional angle of tail (°) | 245 |
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| Aperture | 10.6 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) | 780 |
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| Phot Region | comparison stars are in the same frame as a comet |
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| Software (with version) | ICQ: IRA. IRAF |
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| Stars Exposure | Not set |
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| Photometric-aperture size | ○ 71.0' |
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| Camera | |
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| Chip | |
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| Chip blooming | |
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| Number of images | Σ>=9 |
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| Magnitude of the comparison star closest in brightness | 9.1 |
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| Calibration methods | dark-subtracted (and bias-subtracted) + flat-field corrected (flat-fielded) |
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| Pixel size width | 7" |
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| Pixel size height | 7" |
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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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