Observation's detail view
Комета | 2P/Encke |
---|---|
Пользователь | AHale |
Имя пользователя | |
Время наблюдения (UT) | 2003-12-27 12:57:00 |
Инструмент | 41-cm reflector |
Место наблюдения | Cloudcroft |
Звездный каталог | NH - Северный полярный ряд (Henden и Kaitchuck, 1982) |
Метод | |
Блеск | :7.5 |
Диаметр комы(') | 1 |
Длина хвоста | Не задан |
Степень конденсации комы | 8 |
Positional angle of tail | Не задан |
Шкала Бортля | Не задан |
Апертура | 40.64 |
Focal length (mm) | 1828.8 |
Оптическая схема инструмента | L - Рефлектор системы Ньютона |
Увеличение | 70.3 |
Поле зрения (°) | 0 |
SQM-L в зените | |
Зона засветки | |
Lm | Не задан |
Комментарий | low altitude, fairly bright twilight, probably just the central condensation was seen. My records do not indicate any observations of a tail in 2003, although the comet was in conjunction with the sun, and thus invisible, during the time when I have seen a tail on other returns. I have sent you information on tail observations from 2013; on most returns, when I have seen a tail, it has been short, relatively straight, fairly now, and visible 2-3 weeks before perihelion passage. |
Morris Format | 2003 Dec 27.54 UT: m1=7.5:, Dia.=<1', DC=8 ...40.64-cm L (70.3x) ...Alan Hale (Cloudcroft, U.S.A.) |