| Комета | C/2013 US10 (Catalina) |
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| Пользователь | AHale |
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| Имя пользователя | Alan Hale |
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| Время наблюдения (UT) | 2015-11-22 12:14:00 |
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| Инструмент | 10x50 binoculars |
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| Место наблюдения | Cloudcroft |
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| Блеск | 6.1: |
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| Звездный каталог | YG - Йельский каталог ярких звёзд |
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| Метод | M - Метод Морриса |
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| Диаметр комы(') | &2 |
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| Длина хвоста | 5° |
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| Степень конденсации комы | 6/ |
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| Positional angle of tail | 170 |
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| Шкала Бортля | Не задан |
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| Апертура | 5 cm |
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| Focal length (mm) | Не задан |
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| Оптическая схема инструмента | B - Бинокль |
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| Увеличение | 10 |
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| Поле зрения (°) | 5.6 |
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| SQM-L в зените | |
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| Зона засветки | Зеленая |
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| Lm | |
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| Комментарий | Clear skies this morning, and I was successful in observing this comet in the dawn sky. It was fairly easy to detect, but unfortunately it was in a pretty blank star field, and thus there wasn’t much in the way of stars with which to make brightness and size measurements. So, the brightness and size measurements here should be considered approximate (the coma size really isn’t much more than an educated guess). The comet was clearly brighter than HD 126131 (V = 6.7) that was one degree to the east. There was possibly a faint wisp of tail perhaps 5’ long extending roughly southward (p.a. ~170) but with the low altitude and the brightening sky I’m not at all sure that this was real. |
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| Morris Format | 2015 Nov 22.51 UT: m1=6.1:, Dia.=&2', DC=6.5, Tail: 5 deg, in PA 170 deg ...5-cm B (10x) ...Alan Hale (Cloudcroft, U.S.A.) |
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