| Comet | C/2013 A1 (Siding Spring) |
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| User | chergen |
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| User`s name | Carl Hergenrother |
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| Observation's time (UT) | 2015-02-17 13:26:00 |
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| Observation's place | Not set |
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| Comparison stars source | ICQ: U4. UCAC4 photometry catalog |
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| Method | C |
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| Magnitude | 13.2 |
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| Mag Error | Not set |
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| Coma diameter(') | 1.3 |
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| 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 | 61.0 cm |
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| Telescope focal length (mm) | 6100 |
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| Telecope Type | Y |
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| Exposure of single frame (sec) | 120 |
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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 | ○ 1.3' |
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| Camera | FL9 |
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| Chip | KA9 |
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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 | 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 | 0.8" |
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| Pixel size height | 0.8" |
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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 | |
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| Comment | Not set |
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