Комета | C/2014 Q1 (PANSTARRS) |
Пользователь | AHale |
Имя пользователя | |
Время наблюдения (UT) | 2015-06-15 10:19:00 |
Инструмент | 20-cm reflector |
Место наблюдения | Cloudcroft |
Звездный каталог | NH - Северный полярный ряд (Henden и Kaitchuck, 1982) |
Метод | M - Метод Морриса |
Блеск | 8.0 |
Диаметр комы(') | 2 |
Длина хвоста | Не задан |
Степень конденсации комы | 6.5 |
Positional angle of tail | Не задан |
Шкала Бортля | Не задан |
Апертура | 20.32 |
Focal length (mm) | 1118 |
Оптическая схема инструмента | L - Рефлектор системы Ньютона |
Увеличение | 43 |
Поле зрения (°) | 0 |
SQM-L в зените | |
Зона засветки | Серая |
Lm | Не задан |
Комментарий | Another hour-long drive (and back) this morning; the sky conditions were perhaps a bit better than they were yesterday, at least, the air was drier. The comet was located in a blank star field but I had no trouble locating it or seeing it; I was able to follow it for about 15 minutes before the sky became too bright. Distinctly non-stellar, but still quite condensed. The coma measurement is somewhat of an upper limit. When I examined the comet at 152x the coma appeared slightly fan-shaped, with the apex in the sunward direction; no sign of a tail, but in the bright sky that's not surprising. Since perihelion passage is now only three weeks away I won't hold my breath for any major display, unless it undergoes some kind of dramatic brightness surge as it passes through perihelion. |
Morris Format | 2015 Jun 15.43 UT: m1=8.0, Dia.=2', DC=6.5 ...20.32-cm L (43x) ...Alan Hale (Cloudcroft, U.S.A.) |