... Home Education Classes Classes ? Archive . ... Classes - Archive . ... Clear Sky Chart . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... Jaclyn Avidon €аis a member of the Board of Directors of the Amateur Astronomers Association of New York, the Chair of the AssociationтАЩs School Outreach Committee, and the instructor for the AssociationтАЩs classes. ... This class is a offering of the Amateur Astronomers Association of New York. ...

Cosmic Ray laboratory of . ... Neutron Monitor (Cosmic Ray Observations) . is situated in Irkutsk (Russia) . ... Height - location above sea level . ... Height: . ... For recording the CR (Cosmic Rays) neutron component at Irkutsk, . neutron monitor NM-64 is used, which is an installation with 18 two-meter proportional counters filled with BF 3 (boron trifluoride gas) in which the B 10 90 per cent of the total boron. ... The neutron monitor is located at 475m above sea level. ...

... Почему ГАИШ? ... Одному из членов оргкомитета или Е-mail: osa@sai.msu.su или Прохорову М.Е. ГАИШ Университетский пр. 13 119899, Москва, Россия Отв. секретарь М.Е.Прохоров Вход свободный ---------------------------------------------------------------------------- ******************************************************************* FIRST ANNOUNCEMENT : IAU Colloquium 167: NEW PERSPECTIVES ON SOLAR PROMINENCES April 28 - May 4, 1997, Aussois, France This Colloquium will focus on ...

... Зада?а 1. ... Найти длину радиуса-вектора в перигелии и афелии тела массы [pic], совершающего движение в поле гравитационного притяжения массой [pic], если задана вели?ина интегралов движения [pic] и [pic] (см. предыдущую зада?у). [pic] [pic] или [pic] В перигелии и афелии [pic] и, следовательно, [pic] Зависимость [pic] от [pic] при [pic] представлена на рис. 5. [pic] Проанализируем полу?енное квадратное уравнение: [pic] где [pic] При [pic] [pic] [pic] При [pic] [pic] При [pic] [pic] Зада?а 4. ...

... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...

... At present, he is a Leading researcher at the Department of Non-Stationary Stars and Stellar Spectroscopy, heading the group of the General Catalogue of Variable Stars, and a Leading researcher at the Department of Variable Stars and Galactic Astronomy of the Sternberg Astronomical Institute, heading the group of Variable Stars. ... P.P. Parenago, B.V. Kukarkin, P.N. Kholopov leaded the team of variable star catalogue compilers at Astronomical Council/INASAN and at Sternberg Institute through years....

The Archeops experiment aimed at measuring the cosmic background emitted just after the Big Bang. The study of this radiation is essential to obtain precise information on the evolution of the Universe: density, Hubble constant, age of the Universe.. To achieve this goal, measurements have been done with devices cooled down at 100mK temperature placed at the focus of a warm telescope. ... 28960 visitors . ...