ВНИМАНИЕ! На форуме начался конкурс - астрофотография месяца ИЮЛЬ!
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CBET 4267: 20160317 : COMET 252P/LINEAR Electronic Telegram No. 4267 Central Bureau for Astronomical Telegrams COMET 252P/LINEAR P. Jenniskens, SETI Institute and NASA Ames Research Center; and J. Vaubaillon, Institut de Mecanique Celeste et de Calcul des Ephemerides, Paris, report that, in the wake of the close 0.0356-AU approach of comet 252P to the earth on Mar. 21 (cf. CBET 4259), it is possible that a new meteor shower will appear on Mar. 28 and 29. A standard model was developed by integrating the orbit of the comet back to A.D. 1850 and ejecting dust at each perihelion passage since that time. After forward-integrating these particles to Mar. 2016, it was found that at no time this year are the densest dust trail sections in the earth's path. Instead, a diffuse cloud of perturbed meteoroids ejected during 1894-1926 is calculated to be in the earth's path during solar longitude 7.5-8.9 degrees (peak at 8.15 deg; equinox J2000.0), between Mar. 28.0 and 29.417 UT. Dust ejected in 1921 is predicted to peak around solar lonitudes 8.01 and 8.47 deg (Mar. 28.5 and 28.958 UT, respectively), while dust from 1915 would peak at 8.27 deg (Mar. 28.75). Slow meteors will radiate from a geocentric radiant at R.A. = 77.0 deg, Decl. = -16.3 deg, with velocity V_g = 11.1 km/s. Rates will be low.
мы готовимся пронаблюдать метеоры от этих кометы на снимках олл-скай камер...хочешь поучаствовать?
ЦитатаCBET 4267: 20160317 : COMET 252P/LINEAR Electronic Telegram No. 4267 Central Bureau for Astronomical Telegrams COMET 252P/LINEAR P. Jenniskens, SETI Institute and NASA Ames Research Center; and J. Vaubaillon, Institut de Mecanique Celeste et de Calcul des Ephemerides, Paris, report that, in the wake of the close 0.0356-AU approach of comet 252P to the earth on Mar. 21 (cf. CBET 4259), it is possible that a new meteor shower will appear on Mar. 28 and 29. A standard model was developed by integrating the orbit of the comet back to A.D. 1850 and ejecting dust at each perihelion passage since that time. After forward-integrating these particles to Mar. 2016, it was found that at no time this year are the densest dust trail sections in the earth's path. Instead, a diffuse cloud of perturbed meteoroids ejected during 1894-1926 is calculated to be in the earth's path during solar longitude 7.5-8.9 degrees (peak at 8.15 deg; equinox J2000.0), between Mar. 28.0 and 29.417 UT. Dust ejected in 1921 is predicted to peak around solar lonitudes 8.01 and 8.47 deg (Mar. 28.5 and 28.958 UT, respectively), while dust from 1915 would peak at 8.27 deg (Mar. 28.75). Slow meteors will radiate from a geocentric radiant at R.A. = 77.0 deg, Decl. = -16.3 deg, with velocity V_g = 11.1 km/s. Rates will be low.В общем, есть вероятность нового потока 28-29 марта. Радиант находится в Зайце, на рисунке показано его положение 28 марта через час после захода Солнца (UT) -- ниже Ориона, наблюдать можно только вечером.
CBET 4267: 20160317 : COMET 252P/LINEAR [...] Instead, a diffuse cloud of perturbed meteoroids ejected during 1894-1926 is calculated to be in the earth's path during solar longitude 7.5-8.9 degrees (peak at 8.15 deg; equinox J2000.0), between Mar. 28.0 and 29.417 UT. Dust ejected in 1921 is predicted to peak around solar lonitudes 8.01 and 8.47 deg (Mar. 28.5 and 28.958 UT, respectively), while dust from 1915 would peak at 8.27 deg (Mar. 28.75).Slow meteors will radiate from a geocentric radiant at R.A. = 77.0 deg, Decl. = -16.3 deg, with velocity V_g = 11.1 km/s. Rates will be low.
Есть!!! Один пролетел.яркий!!!
Сегодня в Ящерице видел обалденно красивый болид -4 или -6 ярко-зеленого цвета. Летел из Цефея. Скорость 7-15 градусов в секунду. На стыке Б.Медведицы и Гончих Псов как-будто наклевывается радиант слабых метеоров. Из Зайца ничего не вылетало ))
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Тема: Журнал наблюдений метеоров (Прочитано 261265 раз)
