Statistics of sunspot activity . ... The solar regions . ... The description of the solar regions . ... The growing bipolar group had appeared at the tenth parallel of the Southern hemisphere 30.04.04, to the West from the central meridian. ... The sunspot with perceptible symmetrical penumbra was observed at the mid latitudes of the Southern hemisphere since 11.11 to 23.11.04. ... The small bipolar group was observed at the tenth parallel of the Southern hemisphere since 16.11 to 20.11.04. ...

Determination of the orbits and estimation of the masses of ADS 7251 and ADS 5983 ( Gem) Natalia A.Shakht, Elena A.Grosheva, Denis L.Gorshanov. ... For ADS 7251 we have used the observations of W. and O. Struve 1821­1878 years (see Fig. ... In the motion of ADS 5983 our astrometric observations have been shown perturbations with period from 5.6 to 6.1 years, which are repeated during all interval of observations and assumed the presence of unseen component with low limit of the mass equal to 0.2 M . ...

... Advises . Contact Advises . As an advise for amateurs we would like to underline: if it's possible, try to observe 3 asteroid positions per night and do not neglect to observe the Numbered Minor Planets in your telescope field of view as a "by product" of your observational programs. ... We think such estimations ought to be produced every morning after CCD observations of the moving celestial objects by observer himself. ...

... Войти на сайт: Имя: . ... Автор забыл указать имя ] . ... Задача про космос. ... Торговый дом Sotheby's в понедельник выставил на аукционные торги два уникальных документа, ранее принадлежавших советскому космонавту Юрию Гагарину. ... пишет в отчете космонавт ? ... 2008-12-04 01:20:00 Индия готовится к запуску человека в космос . ... An innteliglet answer - no BS - which makes a pleasant change http://tpjfzngvm.com [url=http://pqxafwm.com]pqxafwm[/url] [link=http://wgyewe.com]wgyewe[/link] . ...

... этих параметров графическое изображение и наблюдение за маятником неудобны (+ защита от дурака ) Поскольку интервал времени между двумя ближайшими расчетными точками в 300 раз меньше среднего периода колебаний ( T (300мс), то можно утверждать о достаточно ... высокой степени совпадения вычисленной и реальной кривых. [pic] Dim dx, g, sx, sy, xi, yi, vy, vx, xx, k, m, cosa, sina, Fy, Fx, i As Integer Dim Ind As Boolean 'Определяем переменные Private ...

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

Introduction to PLASMA ASTROPHYSICS (Selected 10 lectures) Boris V. Somov Astronomical Institute and Faculty of Physics Moscow State University Pushino-na-Oke, 2008 Contents Ab out These Lectures 1 Particles and Fields: Exact Self-Consistent Description 1.1 Liouville's theorem . . . . . . . . . . . . . . . . . . . 1.1.1 Continuity in phase space . . . . . . . . . 1.1.2 The character of particle interactions 1.1.3 The Lorentz force, gravity . . . . . . . . . 1.1.4 Collisional friction . . . . . . . . . . . .