... To avoid extensive numerical calculations in the statistical simulations, we treat the continuous evolution of each binary component as a sequence of a finite number of basic evolutionary states (for example, main sequence, red (super)giant, helium (Wolf-Rayet) star,     hot WD), in which stellar parameters significantly differ from each other. ... Figure 2: Schematic representation of the typical evolutionary track of a massive binary system with normal and compact star stages indicated. ...

The Steady State model of the Universe was proposed in 1948 by Bondi and Gold and by Hoyle. ... At the time the Steady State model was proposed, the Big Bang model was in trouble because the value of the Hubble constant was clearly bigger than the inverse of the age of the Universe. ... Thus the Steady State model has flat spatial sections like the critical density Big Bang model. ... The Steady State model has no adjustable parameters to correct for this error, but the Big Bang does. ...

. This is a new popup window - close it when you are done . Submitted by Sai Vallabha on 09/26/2010 10:26:52 . Baxter State Park - 1991 . Please Feed the Astronomers -- ATMoB. Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us

. Webcams . Networking . Weather . Power . System health . Measurements . Sky status at Sat Apr 9 22:28:00 2016 is Clear Sky status at Sat Apr 9 22:28:00 2016 is Clear . Copyright 2007 2013.

... Following several successful moon landings,NASA decided to use its last Saturn V not to fly to the moon but to place in low Earth orbit a large space station, named Skylab. ... It was followed that year by three manned flights using the smaller Saturn IB, each carrying 3 astronauts for a prolonged stay aboard Skylab. ... Mass measurements aboard Skylab were part of the medical experiments conducted there. ... Measuring body mass in the M172 chair (see illustration) was not a simple matter. ...

. of Mir space station .        . High Energy Astrophysics Dept. at IKI . Send your comments to . Last updated : Feb 15, 1999.

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. November 19, 1999 . Mercury And The Sun . ... TRACE Project . Explanation: Just days before the peak of the Leonid meteor shower , skywatchers were offered another astronomical treat as planet Mercury crossed the face of the Sun on November 15. Viewed from planet Earth, a transit of Mercury is not all that rare. ... About APOD > . ...

... Home Page . ... Software: Version 4.0 . Version 3.0:Complete Documentation . ... Цифровой ионозонд 'Парус' предназначен для вертикального зондирования ионосферы. Ионозонд 'Парус', разработанный в ИЗМИРАН, является высокоточным прибором с современным математическим обеспечением. ... 142190, Россия . Tel: 7-(495)-334-02-78 . Fax: 7-(495)-334-01-24 . ... 142190, Russia . ... 2004 IONOSONDE PARUS ...

SUBWAY.WAD - The Deimos Subway ============================== This is a fairly large PWAD that takes place in a very small subway system and the rooms attached to the stations. ... Your mission, clean out the stations and eliminate whoever is behind the invasion. ... Maybe you can find some more weapons and ammo in the subway before you buy it. Pre-mission briefing includes the fact that the subway has three stations, with several room attached to each station. ... Go get those demons! ...

... The default run_state of all incoming runs is now OPEN . The support astronomer has to inform the operations support scientists if the run_state for a run has to be changed (e.g. after consulting the Database Consistency Check Page which is updated hourly from 9:30 to 17:30, Garching time) . The default run_state of all SM runs for next period is NEXT . By default, all NEXT runs will be set to OPEN at the start of the new period. ... COMPLETED or TERMINATED . ... COMPLETED . ...

Geometric Algebra 3 Dirac Theory and Multiparticle Systems Chris Doran Astrophysics Group Cavendish Laboratory Cambridge, UK Dirac Algebra · Dirac matrix operators are · These act on 4-component Dirac spinors · These spinors satisfy a first-order wave equation MIT3 2003 2 STA Form · Adapt the map for Pauli spinors · Action of the various operators now Imaginary structure still a bivector Dirac equation MIT3 ...

In 1995 Ukraine started operation of Vernadsky antarctic research station . The station was transfered by Great Britain, former Faraday station. ... Vernadsky is the British Antarctic Survey (BAS) former Faraday station that has been transferred free to Ukraine for Ukrainian Antarctic Center (UAC) at 7 February 1996. ... Vernadsky (Faraday) is the oldest operational station in the Antarctic Peninsula area. ... Vernadsky is the first Ukrainian Antarctic station. ...

... Mass . ... Following several successful moon landings,NASA decided to use its last Saturn V not to fly to the moon but to place in low Earth orbit a large space station, named Skylab. ... It was followed that year by three manned flights using the smaller Saturn IB, each carrying 3 astronauts for a prolonged stay aboard Skylab. ... Mass measurements aboard Skylab were part of the medical experiments conducted there. ... Measuring body mass in the M172 chair (see illustration) was not a simple matter...

This group of four pages describes how the Arecibo 430 MHz radar makes simple measurements in the ionosphere. ... Radar Reflections From the Ionosphere . ... Or How are radio and TV stations like radars?) ... Consider two radio stations located on a mountain transmitting to a nearby city. ... A radar is like a radio station, but it has a receiver that picks up radio waves reflected from objects (targets). ... Although a radio station transmits continously, a radar can transmit short bursts of waves. ...

... The space station Mir is the most complex and unique vehicle of the twentieth century. ... It is in proposing to UNESCO the procedure of giving to the space station Mir a status of the object of the World cultural heritage of the mankind as a very valuable unique object of the technical culture of the 20th century, and realization of the special project of its preservation. ... Proactive organization work to get in UNESCO the status of the object of the World cultural heritage for the station Mir; ....

... Gallery . ... The Mt Bingar field station and the Catz teleтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . Title: The Mt Bingar field station and the Catz telescope . ... Katz 24" telescope at Stromlo, early 195тАж . Views: 2930 . Katz telescope . Views: 2842 . ... Views: 2691 . Bingar Field Station . Views: 2695 . ... Views: 2721 . ... Views: 2772 . ... Views: 2782 . ... Views: 2711 . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit–їs . ... des pages consacr–їes –Љ la publication de vos photos Mais c'est aussi une vraie communaut–ї avec laquelle partager votre passion et nourrir votre curiosit–ї. Accueil Des s–їjours en orbite dans une ancienne station russe ? ... La compagnie spatiale priv–їe Excalibur Almaz (EA) esp–Rre offrir –Љ des touristes fortun–їs des vols sur orbite d'une semaine d–Rs 2013 –Љ bord d'anciens vaisseaux russes top-secret. ...

. XMM-Newton Science Analysis System . omthconv (omthconv-1.32) [xmmsas_20080701_1801-8.0.0] . Meta Index / Home Page . The Intermediate OM Tracking History Data Auxiliary file (output of OMPREP ) contains the required header information needed by the output data product file as stated in [2]. XMM-Newton SOC/SSC -- 2008-07-02

... Tonight's Sky . ... Observing . ... Leak repaired on the International Space Station . ... Astronauts Chris Cassidy and Tom Marshburn ventured into space May 11, 2013, and replaced a pump unit on the outside of the International Space Station that was leaking ammonia. ... Over the weekend, the crew of the International Space Station worked overtime to fix a leaking cooling network outside the orbital outpost. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... The analysis shows, that asteroid ­ rubble pile loses its fast fragments in no time but the retaining fragments forms a compact structure immersed in dust ­ gas atmosphere, created by interaction of interplanetary medium with dispersed product of collisional evolution of asteroid. By interaction of an asteroid ­ rubble pile with interplanetary medium structures asteroid can increase its brightness on account of blowed up dust simulating phenomenon of distant comet's brightening. ...