... Our Solar System is a stellar-planetary unit consisting of the Sun ; the nine planets and their satellites; the asteroids, comets, and meteoroids; and interplanetary dust and gas. The dimensions of this system are specified in terms of the mean distance from the Earth to the Sun, called the astronomical unit (AU). ... The boundary between the solar system and interstellar space - called the heliopause - is estimated to occur somewhere beyond 120 AU. ... Earth . ...
... Field size . Object name . ... Map size . ... Field size: the approximate size of the map in the Y direction. ... Galaxies: . ... Galaxies, which size exceeds some value depending on the field and map sizes, are displayed with their real positional angles and sizes by 25m isophote. ... In the "tools" fields there are links to the several famous AVO (Astrophysical Virtual Observatory) resources: NED and Simbad databases and DSS2 (Palomar Digitized Sky Survey) images of the corresponding sky area. ...
... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...
... The visible power a source emits in all directions is measured in lumens. ... Solid Angle- . ... The solid angle of a light cone is the projected area of the cone divided by the total surface area of the sphere. A solid angle is measured in steradians, where 1 steradian corresponds to the solid angle su btended by a cone of unit slant height and unit projected area. ... Luminous intensity is the flow of luminous energy, or lumens, per steradian. ... This is the rate of flow (lumens) per unit area. ...
This figure shows four snapshots in time as the flame propagates initially subsonically outward reaching a specified density (green) at which point the flame transitions to a detonation. Shown in color is a reaction progress variable describing the burning of nuclear statistical quasi-equilibrium (NSQE) products to nuclear statistical equilibrium (NSE) products. ... Note that the scale of the right-most figure is larger than the other three. Aaron Jackson (Stony Brook University) ...
... Размещена статья "Новая карта рельефа Марса" . Размещена статья "Летящие группы Эггена" . ... Выход из этой ситуации - стационарное размещение инструмента в обсерватории, которую чаще всего приходится строить самому. ... Венчает сооружение купол, изготовленный либо из металла, либо досок или пластика, вращающийся на неком рельсе. ... Я решил спроектировать обсерваторию с классическим куполом, в которой можно разместить 0.5 м телескоп и одновременно несколько наблюдателей. ... С.В. Киселев . ...
... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... ISS Russian Segment . ... Bus Module . ... Module Poisk as part of the ISS RS . ... After MRM2 integration into the Russian Segment, equipment included into the payload package of the module began to be used for experiments under a long-term program of scientific and applied research. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...
... SSAU History . SSAU roadmap . ... SSAU scientists Sergey Zvonov, Engineer of Software Innovation Management, and Andrey Gavrilov, Head of Administration on Scientific Personnel Training, presented developments of the University at the International Exhibition- Seoul International Fair (SIIF-2014). International Forum was held in Seoul (South Korea) from November 28 to December 1. ... SSAU experts presented four developments that aroused a great interest among the exposition visitors. ...
... Corvus Capital, along with its own capital, has the backing of a number of international funding partners. ... MyCloudtag App has launched in the Apple App Store Google Play store! App Fitness & Health . Andrew Regan lead a 10 man team on the first ever there-and-back crossing of the Antarctica. ... CloudTag is a London Listed Company focused on the Fitness and Wellbeing Market. AIM Fitness & Health . Sirius Petroleum is an Oil Gas Company listed on London's AIM. AIM Oil & Gas . ...
... http://www.heavens-above.com/skychart.aspx?SL=1 =1 =56.19448 =94.74609 =Unspecified =200 =CET . ... Далее указаны непосредственные значения широты (lat=56.19448) и долготы (lng=94.74609) места наблюдения, а также его название (loc=Unspecified - т.е. в данном случае не определено), высота над уровнем моря в метрах (alt=200) и временная зона - tz=CET - Всемирное эфемеридное время - сайт сам посчитает вашу поправку за долготу, которую вы можете подправить, если в этом возникнет необходимость. ...
... Same values with Т?_QEТЛ refer to product of transmission curve and detector QE curve. ... For IR filters, H2RG curve is required (though absent) . ... QE curve of a E2V CCD44-82 chip no. -09-02 is given here: . ... UBVRcIc filter curves: . ... SDSS filter curves: . ... IR filter curves are taken as from witness 1'' at 77K at AOI=0: . ... infrared_anc.png . ... round . ... Asahi . ... FSU . ... Bessell_U(25mm)-1 . ... SDSS_u'(25mm)-1 . ... USA . ... ANC . ... Curve by witness 1'' at 77K . ...
Brown J., Cassinelli J.P., Li Q., Kholtygin A., Ignace R. Optically Thick Clumps - Not the Solution to the Wolf-Rayet Wind Momentum Problem? ... 426 , 323-328 (2004) . The hot star wind momentum problem $\eta=\mdot \varv_{\infty}/(L/c) \gg 1$ is revisited, and it is shown that the conventional belief, that it can be solved by a combination of clumping of the wind and multiple scattering of photons, is not self-consistent for optically thick clumps. ...
... The alloy with x = 0.171 is found to deviate from the linear Curie point dependence on pressure. The interrelation between the magnetic T-C diagram peculiarities and the anomalies of the thermal expansion coefficient and the isotherm of the magnetic susceptibility in the paramagnetic range is investigated. ... 5, Tc and T, decrease linearly with increasing pressure. ... It is seen in Fig. 2 that the P(Tc)dependence for the alloy KO. is nearly 5 parabolic in the investigated temperature range. ...
Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Posted on April 6, 2016 | No Comments Spring has truly sprung. ... Continue Reading.. Posted on March 1, 2016 | ... Posted on February 2, 2016 | ... Posted on January 7, 2016 | ... Posted on November 4, 2015 | ... Posted on October 5, 2015 | ... Posted on September 3, 2015 | ... Posted on August 3, 2015 | ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...
... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†йs . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil La navette secr†иte de lтАЩarm†йe am†йricaine rep†йr†йe par des amateurs . ... Regardez l'animation du passage du X-37B dans ciel r†йalis†йe par l'amateur canadien Kevin Fetter, le 20 mai 2010. ...
... This applet generates an observing list based on an observer's location and time. ... To use this program, enter in your location, and the local times at which you wish to begin and end observing. The date you enter should correspond to the calendar day at the time at which you begin observing. For example, if you wish to observe from 9:37 PM October 23, 2007 until 3:21 AM October 24, 2007, you would enter 21:37 for the starting time, 03:21 for the finish time, and 10/23/2007 for the date. ...
... РЕШЕНИЕ ЗАДАЧ СФЕРИЧЕСКОЙ АСТРОНОМИИ . ... Вычисление точных топоцентрических эфемерид планет . ... В качестве примера в нем приведены исходные данные сервера для расчета эфемерид Марса. Ниже списка располагаются четыре кнопки для модификации исходных данных. ... Через некоторое время, которое в основном определяется скоростью передачи данных по сети, на экране появиться большая таблица рассчитанных значений параметров, снабженных многочисленными комментариями. ...
Альтернативный форум . Scientific.ru Все форумы . Постоянные участники форумов [ .. ... The second law of Newton - Zhivotov, kinetic energy and work of forces. ... It is scarlet - work of tangential forces. ... Re: Второй закон Ньютона - Животова (Редактированное) (То) . ... Второй закон Ньютона - Животова, кинетическая энергия и работа сил. ... снова все то же Munin, 11.12.2007 13:39 . ... Re: Второй закон Ньютона - Животова, кинетическая энергия и работа сил. v_rtex, 08.12.2007 17:34 . ...