... The total mass of the scientific payload is about 2500 kg, of which the unfolding parabolic 10-m radio astronomy antenna's mass is about 1500 kg, and scientific package holding the receivers, power supply, synthesizers, control units, frequency standards and data transmission radio system - near 900 kg. ... The jet system is a hydrazine thrusters system: it will be used during the creation of the base system of spacecraft orientation, for unloading of the powered gyros, and for orbit corrections. ...

. Full-Text Search . Latest . Statistics . arXiv.org . > . astro-ph . recent . find . SAI VO . Search sort results by Date Relevance . Use logical operators AND , OR , NOT and round brackets to construct complex queries. Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . Normalized to: Mass, D. 1 article(s) in total . 2 co-authors. Median position in authors list is 3,0 . Co-author(s): . Ignace, R. - . Oskinova, L. M.. SAI VO | Astronet | SAI MSU .

... 2007: . A Young Binary System Theta 1 Ori C. Based on the interferometer observations on BTA, for the first time we drew an orbit, calculated the masses, luminosity and spectral classes of the components of a very young (~ 100 thousand years old) massive (a total mass of 48 times the Sun) binary system Theta 1 Ori C in the nearest to us Orion complex of star formation. Archive . ...

... We consider the astrophysical evolution of the Galaxy over large time scales, from early stages (an age of ~10 8 yrs) to the end of traditional stellar evolution (~10 11 yrs). ... In the model considered, the basic stages of Galactic evolution are as follows. ... Essentially all other basic parameters of the Galaxy vary little. ... The final "stellar epoch" in the life of the Galaxy is completed ~10 13 yrs after its formation, when the evolution of the least massive stars comes to an end. ...

KOLIBRY MS . The Kolibry satellite was developed as a base satellite as applied to the entire Program with respect to its characteristics: . ... Design of the MS body and transport container with launcher; . Content of service systems; . A permanent component of scientific equipment system; . ... In-flight control of its operation. ... Antenna system . ... The system of data acquisition and control; . ... Passive thermal control system; . ... Official WEB-site of S.P.Korolev RSC Energia . ...

The LIDAR Instrument Information . The LIDAR was designed in a bistatic scheme with a separate transmitter and two receiver channels. ... The total mass of the instrument is only 940 grams (about 2 pounds) and a total volume is 950 cubic centimeters in both assemblies. ... Engineers designed the LIDAR to operate in the temperature range from -100 to 50 degrees Celsius (-148 to 122 degrees Fahrenheit) under lower pressure, near one millibar. ... One of the receiver channels has polarizer. ...

... The total pressure P in a non-degenerate, ionized region of a not-too-luminous star can be considered as that of a simple perfect gas alone (i.e. radiation pressure can be ignored). ... Similarly, the energy density per unit mass is U = 3 k T /µmH . Using the 1st Law of Thermodynamics, 2 show that in this region of the star, the adiabatic exponents 1 , 2 and 3 are all equal to 5 , 3 where the exponents are defined as 1 = ( d ln P )ad , d ln ad d ln T 2 - 1 =( ) 2 d ln P and 3 - 1 = ( d ln T )ad . ...

... 50 Greatest Mysteries . ... Australia: The Great Dreamtime Total Eclipse . Join Astronomy magazine Editor Dave Eicher, Senior Editor Rich Talcott, and MWT Associates on a trip Down Under to watch the November 14, 2012, total solar eclipse. ... Baily's beads from the 2008 total solar eclipse . ... FULL SCREEN . ... Totality with Venus near the eclipsed Sun, Green Island, Great Barrier Reef, Coral Sea, 17 miles (27 kilometers) east of Cairns, Australia, 6:40 a.m. local time, November 14, 2012. ...

main parameters . ... Small Detector   (SD) with thin polyethylene moderator and cadmium shield ; . Medium Detector (MD) with medium polyethylene moderator and cadmium shield ;   . Large Detector (LD) with thick polyethylene moderator and cadmium shield ; . ... Duty regime ; . ... Duty” frame with keeping data (92 bytes) in Duty r egime . Standard” frame with 6 spectra (212 bytes) in Mapping r egime . Profile” frame with 6 spectra and 2 profiles (512 bytes) in Burst r egime ...

Variations of total ozone content and lower ozone stratosphere temperature in Antarctic Region during winter-spring period A.V. Grytsai National Taras Shevchenko University of Kyiv Astronomy and Space Physics Department assen@univ.kiev.ua Data, used in the work work Total ozone: Total Ozone Mapping Spectrometer (TOMS) measurements during 1979 - 2005 and Ozone Monitoring Instrument (OMI) ones for 2006, for http://toms.gsfc.nasa.gov/ftpdata.html. ... A long-term TOC decrease is significant. ...

Twilight observations with MASS/DIMM B. Safonov Sternberg Astronomical Institute Moscow State University Comprehensive Characterization of Astronomical Sites, 2010 B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 1 / 17 Why observe in twilight with MASS/DIMM? ... ASM includes 3 devices sensitive to background: guider, DIMM and MASS. B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 2 / 17 Background in guider. ...

... Posts tagged ?law of total variance? ... To explain such decomposition and to make error analysis statistically rigorous, the law of total variance (LTV) seems indispensable. ... MADS] Law of Total Variance? Tags: additive , bias , law of total variance , MADS , mathematical statistics , mean integrated square error , mean square error , MISE , mse , probability theory , variance . ... Comment . ... Entries RSS . ... vlk on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...

Weak Lensing Constraints on Dark Matter Halos Tereasa Brainerd Institute for Astrophysical Research, Boston University, USA It is currently thought that all large galaxies reside within massive dark matter halos. Despite the apparent ubiquity of such halos and their importance for developing a complete picture of the history of galaxy formation, the characteristic parameters (e.g., total mass, physical extent, and shape) of these objects remain largely unconstrained at present. ...

... Сноубордические шорты WB TOTAL IMP SHORT - надежная защита от травм от американской фирмы Burton. ... Burton . ... Размер: L . ... Артикул DS05FE . ... Тип: Шорты . ... Размер INT: S, XL, . ... Размер BRAND: 3 года (98 см) . Размер BRAND: 4 года (104 см) . Размер BRAND: 5 лет (110 см) . Размер BRAND: 6 лет (116 см) . Размер BRAND: 7 лет (122 см) . ... BURTON MB VISTA BLT FW15 JELLY BEAN O/S - Burton - Burton . ...

The figures display the total emissivity from the Arcetri Spectral Code calculated at Log T = 7.0 (K) . Total spectrum - The emissivity is binned with wavelength steps of 0.5 Choose the electron density: Ne = 10^2 Ne = 10^3 Ne = 10^4 Ne = 10^5 Ne = 10^6 Ne = 10^7 Ne = 10^8 Ne = 10^9 Ne = 10^10 Ne = 10^11 Ne = 10^12 Ne = 10^13 Ne = 10^14 . ... Mail comments regarding interface to landi@poppeo.nrl.navy.mil Mail comments regarding spectrum data to mlandini@arcetri.astro.it, landi@poppeo.nrl.navy.mil ...

THE ARGUMENT AGAINST LONG EXTRAGALACTIC DISTANCE SCALE Gaseous discs of S0 -- Sd galaxies appears to be gravitationally stable or close to stability. Dependence of the gravitational stability parameter of gaseous disc $M_g/M_c$ upon the color index $(B-V)^0_T$ which reflects a relative number of young stars, is found. Here $M_g$ is total mass of gas in a galaxy, $M_c$ - mass of gas which corresponds to marginal stability of gaseous disc at distances from center. ...

... Members . ... There were a good deal of members of the club who traveled halfway around the globe to see this spectacle and combine the opportunity to see a far-off part of the world. Come join us tonight to hear their stories and see some great pictures of their adventures down under. Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Dec . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . Total Solar Eclipses and How to Observe Them . ... Поиск . Сообщения за день . ... Total Solar Eclipses and How to Observe Them (2007).pdf . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. Околополюсные созвездия (поиск и описание) .. Весенние созвездия (поиск и описание).. ...

Working session on Standard Candles Chair: F. Haberl · Definition of standard candles Sources with constant X-ray flux: white dwarfs isolated neutron stars supernova remnants cluster of galaxies · Scientific drivers for accurate absolute fluxes neutron star radii cosmology (e.g. total mass of galaxy clusters, Sunyaev Zeldovic effect) · Calibration purposes absolute flux ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... This energy, as I'll show in a moment, comes from a tiny loss of mass in the Sun. ... In the Sun's core, it converts hydrogen into helium by nuclear fusion. ... The total mass converted to energy is a whopping 2 billion kilograms (4.4 billion pounds) every second! But , the Sun has a total of 2 x 10 30 kilograms of mass, or a trillion billion times as much as it converts to energy every second. ... 2008 Phil Plait. ...