Lord Carrington determined the solar rotation rate by watching low-latitude sunspots back in the 1850s. He defined a fixed solar coordinate system that rotates in a sidereal frame every 25.38 days. ... Carrington coordinates are heliographic and measured in latitude and longitude in that rotating frame. Carrington Time is the rotation and longitude of the point on the Sun that is at the sub-terrestrial point. ... Bartels defined his calendar based on observations of daily geomagnetic activity. ...

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... 3. mJy for ; . ... These criteria were chosen in order to ensure that a well defined, flux-limited sample can be achieved. ... The slightly different radio flux limits north and south of the equator are simply explained: For (and , the limit of the GB6 catalog), it is easy to see that all sources with mJy (the limit of the NORTH20CM catalog) and will be above the much lower flux limit of the GB6 catalog ( mJy; note that the converse does not hold). ...

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... Артикул: CL137251 . Бренд: Citilux (Дания) . Коллекция: Ямато . ... Размер упаковки, мм: 520x520x200 . ... Артикул - CL137251 ,Бренд - Citilux (Дания),Коллекция - Ямато ,Гарантия, месяцев - 24,Время изготовления, дней - 1,Рекомендуемые помещения - Гостиная, Кабинет, Прихожая, Спальня,Высота, мм - 220-1000,Диаметр, мм - 500, Размер упаковки, мм - 520x520x200,Цвет плафонов и подвесок - венге, неокрашенный,Цвет арматуры - хром,Тип поверхности плафонов и подвесок ... Цвет: черный . ...

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The points are analogous to ones for the 4 th , 5 th , 6 th and 7 th Asian-Pacific Astronomy Olympiads . ... National Astronomy Olympic Committees and interested organizations are welcome to ask more about the 8 th APAO and in 2012 may form the teams for the 17 th IAO as well as for the 8 th APAO. The official APAO e-mail is a p a o [a] l i s t . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the Asian-Pacific Astronomy Olympiad (APAO) . ... e-mail: gavrilov@issp.ac.ru . ...

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Field centres for 6dF/FLAIR observations of the 6QZ survey. # 6dF fields have radius 2.844 deg. and were defined in the # J2000 system. FLAIR fields are square and are 5x5 deg # centred on UKST survey positions and defined in the B1950 # system. # 6dF : coordinates ( B1950 ) coordinates ( J2000 ) # Field hh mm ss.ss dd mm ss.s hh mm ss.ss dd mm ss.s sgp001 21 51 31.25 -30 11 45.4 21 54 25.40 -29 57 33.0 sgp002 22 10 08.35 -29 50 17.3 22 12 59.50 -29 35 25.0 sgp003 22 30 24.34 ...

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Общая Астрономическая Конференция > Практика > Своими руками . Климат-контроллер телескопа, или Наш ответ Кендрику . ... Страница 2 из 3 . ... Интересно, сколько может стоить такое готовое решение с комплектом нагревательных лент на окуляры, телескопы объективы и датчиками температуры и влажности? ... Посетить домашнюю страницу mvp . ... Лунные феномены (редкие, необычные явления) Жизнь астрономов-любителей Анонсы астрономических мероприятий Астрономические клубы Наш "Старлаб" . ... Ответов . ...

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