| Comet | C/2013 US10 (Catalina) |
|---|
| User | Castor 98 |
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| User`s name | |
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| Observation's time (UT) | 2016-01-23 04:35:00 |
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| Tool | 20x80 binoculars |
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| Observation's place | Brno (244 m a.s.l.) |
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| Comparison stars source | HJ - Magnitudes in the Hipparcos photometric system |
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| Method | M - Morris`s method |
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| Magnitude | 6.4 |
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| Coma diameter(') | 10.5 |
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| Tail's length | Not set |
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| Condensation | 4.5 |
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| Positional angle of tail | Not set |
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| Bortl's scale | Not set |
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| Aperture | 8 |
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| Focal length (mm) | Not set |
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| Type of tool | B - Binoculars |
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| Magnification | 20 |
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| Field of view (°) | 2.5 |
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| SQM-L in zenith | |
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| Light pollution zone | |
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| Lm | |
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| Comment | Clear sky, very cold weather. Large, moderately condensed coma. No tails visible. |
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| Morris Format | 2016 Jan 23.19 UT: m1=6.4, Dia.=10.5', DC=4.5 ...8-cm B (20x) ...Marek Biely (Brno (244 m a.s.l.), Czech Republic) |
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