Observation's detail view

КометаC/2013 US10 (Catalina)
ПользовательAHale
Имя пользователя
Время наблюдения (UT)2015-11-22 12:14:00
Инструмент10x50 binoculars
Место наблюденияCloudcroft
Звездный каталогYG - Йельский каталог ярких звёзд
МетодM - Метод Морриса
Блеск:6.1
Диаметр комы(')2
Длина хвоста5
Степень конденсации комы6.5
Positional angle of tail170
Шкала БортляНе задан
Апертура5
Focal length (mm)Не задан
Оптическая схема инструментаB - Бинокль
Увеличение10
Поле зрения (°)5.6
SQM-L в зените
Зона засветкиЗеленая
Lm
КомментарийClear 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.
Morris Format2015 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.)