| Комета | 2P/Encke |
|---|---|
| Пользователь | AHale |
| Имя пользователя | Alan Hale |
| Время наблюдения (UT) | 2003-12-27 12:57:00 |
| Инструмент | 41-cm reflector |
| Место наблюдения | Cloudcroft |
| Блеск | 7.5: |
| Звездный каталог | NH - Северный полярный ряд (Henden и Kaitchuck, 1982) |
| Метод | |
| Диаметр комы(') | <1 |
| Длина хвоста | Не задан |
| Степень конденсации комы | 8 |
| Positional angle of tail | Не задан |
| Шкала Бортля | Не задан |
| Апертура | 40.64 cm |
| 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.) |
