... The engine operates with all three propellants (lox, kerosene, hydrogen) in the booster mode (mode 1) and transitions to bipropellant operation (lox, hydrogen) for the latter portion of the trajectory (mode 2). ... In mode 1 operation the hydrogen enhances the combustion of the kerosene to provide to tripropellant specific impulse levels higher than obtainable with separate combustion of the fuels. ... mode 1) . ... DASA, Munchen, February 1994, приведены следующие параметры двигателя РД-701 : . ...

... The electronic journal Astrophysical Bulletin accepts manuscripts from authors from all over the world in Russian or in English. ... By submitting a paper to the editors, the authors assign the rights to its translation into English (for manuscripts in Russian) and into Russian (for manuscripts in English) to the founders, editorial board, and publishers of the journal but reserve the rest of the copyright. ... After a manuscript is registered, the corresponding author receives an e-mail...

Databases (NSDC) of the Natural Planetary Satellites. Sources and references of the data . NSDC: Database of astrometric observations of Natural Planetary Satellites . ... The observational data are taken from various sources: . ... The catalogue of observations of the Martian satellites published by Morley T.A. A catalogue of ground-based astrometric observations of the Martian satellites, 1877-1982, Astronomy and Astrophysics Supplement Series. 1989. vol. 77. n. 2. p. 209-226. ...

LOC Web-site, Crimea . The 12 th International Astronomy Olympiad has been held successfully in Simeiz (Crimea) on September 29 - October 7, 2007. The IAO in 2007 returned to Europe after two times been held in Asia; and it was the fourth time the Olympiad held in Crimea. ... There were 23 teams participated in the XII IAO: . ... I.V.Salnikov (Simferopol', XII IAO-2007 and IX IAO-2004 LOC Chairman), . ... Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad, . ...

... Сегодня: 10 апреля 2016 г. Европейское космическое агентство объявило о начале второй стадии проектирования аппарата для отбора образцов марсианского грунта и их доставки на Землю - Mars Sample Return (MSR). В миссию MSR вовлечены ученые со всего мира, она является основной в программе ЕКА "Аврора", направленной на изучение Солнечной системы. ... Орбитальный аппарат миссии MSR (художественное представление) . ... ЕКА приступило ко второй стадии создания миссии Mars Sample Return . ...

ЕКА приступило ко второй стадии создания миссии Mars Sample Return . ... Европейское космическое агентство объявило о начале второй стадии проектирования аппарата для отбора образцов марсианского марсианского грунта и их доставки на Землю - Mars Sample Return (MSR). В миссию MSR вовлечены ученые со всего мира, она является основной в программе ЕКА "Аврора", направленной на изучение Солнечной системы. ... Затем, капсула отделится от основного аппарата, совершит посадку и отберет пробу. ...

For an infinitely long circular cylinder, the solution of the light scattering problem for the perpendicular incidence was first derived by Rayleigh [ 418 ] who returned to this problem once again in his last work [ 417 ] written a short time before his death. The problem for oblique incidence was solved in 1955 by J.R. Wait [ 491 ] (Kerker [ 274 ] at p.256 mentions also the paper of Blank, 1955); a bit later the same result was obtained in [ 172 ]). ...

February 2004 Starfields. The monthly newsletter of the Amateur Telescope Makers of Boston. ... 15, No.2 February 2004 Newsletter of the Amateur Telescope Makers of Boston Including the Bond Astronomical Club Established in 1934 In the Interest of Telescope Making & Using February 2004 Newsletter President's Message.. ... Compare it with the white star Alpha Cephei. ... The monthly newsletter of the Amateur Telescope Makers of Boston. the director of the Harvard College Observatory at the time. ...

... In laboratory the design and a manufacturing techniques mirror aspherical optics are developed ("fokon", ellipsoid, aspherical mirror).Such optical elements are made of widespread aluminium alloys on the standard equipment without use diamond turning. ... Using: optical blocks of not image optical devices for transitions, collimation, focus (concentration) radiations in a wide spectral range from UV to IR. Focusing and collimation of light; . ... circle aperture/ring aperture; . ... Back Forward . ...

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

Воениздат, 1961 . ... Из космоса - на орбиту вокруг Земли . Возвращаемый спутник . ... Надувной космический аппарат . ... Спутник с аэродинамическим тормозом . ... Материалы космической техники . ... Сверхогнеупорные материалы . Возвращение из космоса... на земле . ...

... Так осуществилась вековая мечта человечества о полете в космос. ... Самым большим' из таких подарков является первый в истории человечества полет в космос и возвращение на Землю пионера звездоплавания Юрия Гагарина. ... В преддверии этого великого события все мы лишь мечтали об этом дне, жадно читали обо всем, что печаталось о будущих полетах в космос, изучали литературу, рассказывающую о физических условиях полета летательных аппаратов за пределами атмосферы. ...

... Yerga Expedition . ... Novaya Yerga Expedition . ... I n 1662 a meteorite shower fell near the village of Novaya Yerga. ... In 2002, the Meteoritics Laboratory of the Vernadsky Institute of Geochemistry And Analytical Chemistry of the Russian Academy of Sciences (GEOKHI) organized an expedition to search for the location and any traces of the Novaya Yerga meteorite shower. ... After visiting the town of Kirillov, the expedition returned to Novaya Yerga, i.e. to near the village of Nekrasovo. ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 14 - 20.05.2012, Forecast on 21 - 28.05.2012, Carrington Rotations 2123 2124 (28,19.04; 25,42.05.2012) SUNSPOT ACTIVITY ON LAST WEEK WAS AT HIGH LEVEL ON MAY 14 AFTER WHEN 13.05 ON THE SOLAR VISIBLE DISK THERE WERE AT ONCE 4 SUNSPOT GROUPS, BUT ALREADY FROM 15.01 EVERYTHING RETURNED TO THE AVERAGE LEVEL. ... NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY IS EXPECTED TO BE AVERAGE. ... FLARES to tm te c/p local. ...

... POLAM-L . ... ABOUT LOMO . ... MICROSCOPES . ... OEM OPTICAL COMPONENTS . ... SURGICAL MICROSCOPES . ... Home Products Microscopes POLAM-L . ... The POLAM?- ... The 360° rotatable head features a built-in iris diaphragm, optical path selector and a vertical photo/video port. ... Microscopes, the stand allows attachment of all the standard and optional modules and components such as stages, condensers, illuminators, intermediate module, and LOMO’s unique, rotatable Monochrometer . ... STAGES . ...

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... Space Exploration: Shuttle Astronauts Return Safely . Forum List | ... Post Message | ... UFO forum here at astronomy.net by Tripp McCann? ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Next Routine] [List of Routines] NAME: ADD_HEADER PURPOSE: addition information from FITS-headers MPFS-frames DESCRIPTION: The function computes the total exposure, mean value zenit distance and modified FITS header CALLING SEQUENCE: Result =ADD_HEADER( headers ) CATEGORY: reduction MPFS-data INPUTS: Headers = String array FITS-headers from the MPFS data OUTPUTS: Header = String array containing the header from the FITS file. ... OPTIONAL INPUT KEYWORD PARAMETERS: BEFORE = Keyword string name. ...

. General Information . Media Files . Participants . Timetable . Local Information . Photos . Back to the album list . Previous . Next Click the image to view it in fullsize. Previous . Next . From Turkic "nart sane" is translated as "bogatyr's water". Old Caucasian legend says that a long time ago there was a pillar by the spring with words on it: "Stranger, stand and bow. The water gives a strength to young, returns health to elder and beauty and love to women." .

MATSYM - symbolic matrix processor . ... To use the program you will need a MAT file (liked CIR file: "User manual for CIRSYM program") of your system. ... In first string of MAT file enter any text you want to be the title of your system. ... Starting from string 2 (if is not comments - "*") enter the system element name, incident row and column and, optionally, its value. ... To generate a solution, run MATSYM.exe and enter "system_file_name.CIR" or click on the "ENTER" (in "MAT" case). ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...