Shown is an off-center, low-velocity collision of two protoplanets containing 45 percent and 55 percent of Earth's mass. Color scales with particle temperature in kelvin, with blue-to-red indicating temperatures from 2,000 K to in excess of 6,440 K. After the initial impact, the protoplanets re-collide, merge and form a rapidly spinning Earth-mass planet surrounded by an iron-poor protolunar disk containing about 3 lunar masses. ...

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• What would a bucketful of our Sun contain? | Astronomy.com

TEMPERATURE OF REGOLITH IN COLD TRAPS ON THE MOON A.A. Berezhnoi Sternberg Astronomical Institute Moscow, Russia The hypothesis of the existence of the lunar ice in cold traps was stated in (Watson et al., ... Arnold, 1979) estimated the mean temperature on the surface of lunar cold traps as 40-90 K. We plotted the dependence of regolith mean temperature on depth for these two values of mean temperature on the surface (see figure 1). ... Arnold J.R. Ice in the lunar polar regions, J. Geophys. ...

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• http://selena.sai.msu.ru/Symposium/RadioMoonE.pdf
• http://selena.sai.msu.ru/Kozl/Publications/Houston2005(1).pdf
• http://selena.sai.msu.ru/Kozl/Publications/ms40/50_Kozlova_Shevchenko.pdf

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . ... ISS 45/46 . ... Rocket Space Complexes . ... MSS Container 1 Thermal insulating container consisting of 3 numbered experimental bags (MSS Sample 1, 2, 3) and ice pack. ... Identical to MSS Container 1; . ... HISTORY . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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• INTERNATIONAL SPACE STATION
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... 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 . ...

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• Optical systems and devices

At the Core of M15 . ... Credit Copyright: NASA , P. Guhathakurta (UCO/Lick Observatory, UC Santa Cruz) Explanation: Densely packed stars in the core of the globular cluster M15 are shown in this Hubble Space Telescope (HST) image taken in April of 1994. ... Even the unprecedented resolving power of the HST cameras could not separate the individual stars in its innermost regions. ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ...

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• At the Core of M15
• Астронет > At the Core of M15
• XWare > APOD

... ---------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- catalog .dat 269 36020 Revised NLTT Catalogue and 1st Supplement Description of catalog columns (see Paper II for details): -------------------------------------------------------------------------------- Summary Information 1) NLTT number (drawn consecutively from 1 to 58,845) 2) binary component 3) RA ( 2000 ), epoch 2000 ( ...

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... 53, Moscow, 119991 Russia 2 Moscow Physicotechnical Institute, Dolgoprudnyi, Moscow oblast, 141700 Russia Received May 26, 2008 ° Abstract--The relative intensities of Fe XI­Fe XIII lines in the range 176­207 A have been measured for various plasma structures of the solar corona using data from the XUV spectroheliograph of the SPIRIT instrumentation onboard the CORONAS-F satellite with an improved spectral sensitivity calibration. ... 2005, 2007). ... Density measurement based on Fe XIII lines. ...

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• Saturnian Moon Shows Evidence Of Ammonia - Astronomy news

Mercury Spring 2011 Table of Contents . This composite image of Arp 147, a pair of interacting galaxies located about 430 million light years from Earth, shows X-ray data from NASA's Chandra X-ray Observatory (pink) and optical data from the Hubble Space Telescope (red, green, blue). ... Chandra X-ray Center . ... Other objects unrelated to Arp 147 are also visible: a foreground star in the lower left of the image and a background quasar as the pink source above and to the left of the red galaxy. ...

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• ASP: Exploring Venus
• ASP: Mercury Magazine
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Authors: Yu.G. Shevelev , V.A. Marsakov , . ... Based on a previously compiled catalog of fundamental astrophusical parameters for nearby disk F stars (containing, in particular, metallicity, isochronal ages, and space-velocity components), with were derived from published astrometric data, the Galactic orbital elements were calculated for 1630 stars. ... The radial and vertical metallicity gradients were found for mixed-age stars and for a few narrow age ranges. ...

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• MONTE-CARLO
• Vertical Structure, figures
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. Quantum clock (atomic clock) - the time measuring device containing quartz generator, controlled by the quantum frequency standard . Atoms play a role of pendulum. The frequency of atoms radiation while the atoms passing from one energy level to another regulates the quantum clock. This frequency is so stable (error 10^-11 - 10^-13) that quantum clocks allow to calculate the time more exactly, then astronomic methods. Back .

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• betweenstarse
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This module provides for forensic logging of the requests made to the server . ... Logging is done before and after processing a request, so the forensic log contains two log lines for each request. ... Module: mod_log_forensic . ... Each log entry is assigned unique ID which can be associated with the request using the normal CustomLog directive. mod_log_forensic creates a token called forensic-id , which can be added to the transfer log using the %{forensic-id}n format string. ...

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... Planets . ... Stars . Exoplanets . ... Most exoplanets so far discovered fall into the category of тАШhot JupitersтАЩ, these are giant planets orbiting very close to their parent star. ... Note that we have discovered so many hot Jupiters because they are the easiest type of planet to find, they are not necessarily particularly common in the galaxy. ... Subsequently several similar hot and€а fuzzy worlds have been discovered the same way, proving this that this planet is not a one-off oddball. ...

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• Stargazing in July | Astronotes
• Wonders of the Universe: Brian Cox's BBC TV series | Astronotes

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

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• Pulkovo EOP and Reference Systems Analysis Center (PERSAC)
• Description of database
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... Meade Instruments Corporation . ... How to Calculate Power . How to Calculate Power: The magnification, or power, at which a telescope is operating is a function of the focal length of the telescope's main (objective) lens (or primary mirror) and the focal length of the eyepiece employed. ... Example: The Meade DS-2070AT telescope has an objective lens focal length of 700mm; when this telescope is used with a 25mm eyepiece, a power of 700/25 = 28 power (written as "28x") results. ... about meade | ...

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• Weather Stations - Products
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... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

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• MASTER-Net Science Release on prompt optical observation of the GRB 090424

To appear in "Fourth Workshop on Robotic Autonomous Observatories (2015)"RevMexAA(SC) MASSIVE PHOTOMETRY OF LOW-ALTITUDE ARTIFICIAL SATELLITES ON MINI-MEGATORTORA S. Karpov, 1, 3 E. Katkova,2 G. Beskin, 1, 3 A. Biryukov3,4 S. Bondar,2 E. Davydov5 E. Ivanov,2 A. Perkov,2 V. Sasyuk3 RESUMEN Favor de prop orcionar un resumen en espanol. ... The nine-channel Mini-MegaTORTORA (MMT-9) optical widefield monitoring system with high temporal resolution system is in operation since June 2014. ...

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Optical Observatories . ... National Optical Astronomy Observatories . ... Adam Mickiewicz University - Astronomical Observatory . ... Astronomical Institute and National Observatory of Athens . ... Jagiellonian University Astronomical Observatory - Scientific research here comprises radio and extragalactic astronomy, solar radio emission, active galactic nuclei, interstellar matter, galaxies, cosmology, variable stars and comets. ... National Radio Astronomy Observatory Home Page . ...

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... For X SSet denote by skn (X ) the minimal simplicial subset of X containing all simplices of X of degree n and less (put sk -1 (X ) = ). n X )N · Prove that skn (X ) is isomorphic to the colimit of the following functor F : ( Here (n )N X is the subcategory of the category of elements X SSet. of X (see lectures) containing all non-degenerate simplices of degree n and less, and F sends a non-degenerate simplex k X to k SSet. ... Prove that |X | ... Let A[-] : Set Mo dA denote the free A-module...

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... 8 February , 2014 SAI seminar (Ryde et al 2010) 5 Thermal emission from GRB jet progenitor observer photon jet Photosphere (=1) · · · · Photons are not produced at the photosphere We have to calculate radiative transfer We need to know where the photons are produced We construct the expression for effective optical depth in relativistic flow considering random walk process in relativistic flow SAI seminar 6 8 ... 8 February, 2014 SAI seminar 28 ...

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Last modified: January 2002 . This site is maintained on a best efforts basis by members of the VSOP team. ... These pages contain links to many WWW sites. All such links are provided for reference purposes only. ISAS does not necessarily endorse or in any way recommend any of the organisations accessible from these Web pages. ... The image above is a stylized form of the Japanese word `koko', written in the hiragana script. ... 3-1-1 Yoshinodai, Sagamihara . Kanagawa 229-8510, JAPAN . ...

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