... Tonight's Sky . ... Observing . ... Hubble sees Uranus' rings on edge . NASA's Hubble Space Telescope captured a rare view edge-on of Uranus' rings. ... Uranus' edge-on rings appear as spikes above and below the planet. ... T his series of images from NASA's Hubble Space Telescope shows how the ring system around the distant planet Uranus appears at ever more oblique (shallower) tilts as viewed from Earth culminating in the rings being seen edge-on in three observing opportunities in 2007. ...

Blackholes Forum Message . ... Post . ... Rest Mass . ... Post Message | ... When the atom was first measured it was assumed to be composed of rest mass. ... The mass due to motion with respect to an observer approaches 0 as the velocity approaches 0. ... If a photon has a zero rest mass and therefore is composed entirely of momentum mass. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Click for a video of the pendulum . ... In 1851 Leon Foucault (1819-1868) was made famous when he devised an experiment with a pendulum that demonstrated the rotation of the Earth. Joseph Ashbrook's book, The Astronomical Scrapbook , (Cambridge University Press, 1984) has a short chapter on Foucault's contributions to astronomy. ... Click here for more a detailed pdf document (5MB) about the University of Louisville's Foucault pendulum along with technical notes and the original working drawings. ...

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

... Educational programs (English) . Educational programs (Russian) . ... Pre-university education . ... Samara region . ... Samara State Aerospace University proposes to develop scientific and educational projects in the field of advanced space technologies together with developing countries. ... The University also took the initiative to hold in 2017 the United Nations Symposium in Samara, confined to the 60th anniversary of the space age beginning (launch of the first Earth satellite vehicle). ...

PRESS-RELEASE . about the launch of Progress M-63 logistics spacecraft . ... S.P.Korolev RSC Energia is the prime manned space flight organization in the Russian rocket and space industry, responsible for the development of the ISS Russian Segment, its integration into the Space Station and its operation, including development and operation of principal Russian modules (Zvezda, Pirs, etc.), manufacturing, launch and operation of Soyuz TMA and Progress M spacecraft. ...

... Publications . ... Spin-orbit interaction and anomalous spin relaxation in carbon nanotube quantum dots . ... We study spin relaxation and decoherence caused by electron-lattice and spin-orbit interaction and predict striking effects induced by magnetic fields B . ... We discuss the difference in the magnetic-field dependence of the spin relaxation rate due to Rashba or Dresselhaus spin-orbit coupling for systems with positive (i.e., GaAs quantum dots) or negative (i.e., InAs quantum dots) $g$...

Four spacecraft: INTERBALL Tail probe (IB_TAIL), MAGION 5 (IB_MAG5), POLAR(NASA/ISAS), GEOTAIL (NASA) are considered. ... four spacecraft . ... INTERBALL . ... IB_MAG5) . ... NASA) . GEOTAIL . NASA, ISAS) . The four spacecraft . ... INTERBALL mission | ...

... G. A Leikin, A. N. Sanovich. Sternberg Astronomical Institute, Moscow 119899, Russia. Brown University - Vernadsky Institute Microsymposium 34, October 8-9, 2001, Moscow, Russia . ... G. A. Leikin and A. N. Sanovich, Sternberg State Astronomical Institute, Moscow State University, . ... Brown University - Vernadsky Institute Microsymposium 38, October 27-29, 2003, Moscow, Russia . ... Sternberg State Astronomical Institute, Moscow, State University, 119992, Moscow, Universitetskij prosp. ...

. Please, enter light elements for your star and Julian Day interval. HJD0: . Period: . JD1: . JD2: .

... First of all, I should say that you cannot guarantee user-mode processes to have exact control of timing because of the multi-tasking nature of Linux. ... However, for most applications using I/O ports, this does not really matter. To minimise this, you may want to nice your process to a high-priority value (see the nice(2) manual page) or use real-time scheduling (see below). ... Linux 2.x kernels have soft real time support; see the manual page for sched_setscheduler(2) for details. ...

Scale-heights of the Galactic disk subsytems with different ages and metallicities . V.Marsakov & Yu. ... It is based on the fact, that all stars cross the disk plane several times during their Galactic orbital period. ... We have used our representative sample of nearby disk F2-G2 stars Marsakov & Shevelev (1995) in which fundamental stellar parameters was determined on the basis of published date on uvby-photometry, proper motion and radial velocities. ... Marsakov V.A., Shevelev Yu.G. Bull. ...

Inscrivez-vous –Љ la newsletter | ... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit–їs . des reportages . ... Accueil Time-lapse : Recr–їez le mouvement du ciel en vid–їo . ... Nous vous expliquons pas –Љ pas comment r–їaliser –Љ partir d'une s–їrie de photos ces petites animations appel–їes time-lapses (voir l'article вАЬacc–їl–їr–ївАЭ sur wikipedia). ... Si vous souhaitez partager vos vid–їos et –їchanger sur le sujet, rendez-vous sur le forum de Ciel et Espace . ...

Добро пожаловать, Гость . ... В теме В разделе По форуму . ... На форуме начался конкурс - Астрофотография месяца: АПРЕЛЬ! ... Астрофотография (Модераторы: Павел Бахтинов , Ivan Mhitarov ) ? Saturn in real time . предыдущая тема следующая тема . ... 0 Пользователей и 1 Гость просматривают эту тему. Гость . Ответ #20 : 30.10.2003 [12:22:49] ? ... Записан . ...

... For the first time I was in the Observatory (Crimea) . ... The University - my dream! ... 1995 October. ... Soros's fellowship for post-grads for the first time . ... 1998 April. ... I am included into the first list of ten prominent russian young scientists by the magazine "What is new in science and technology". ... Prize for young scientists of the Moscow State University. ... 2015 Short-listed for the national prize "For fidelity to science" as the best science popularizer (the 2nd at the end) ....

... Contents . ... Sidereal time . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Matrix elements for conversion to CIRS . ... Conversion of mean time to sidereal time (with accuracy 0.01 s ) . ... Conversion of sidereal time to mean time (with accuracy 0.01 s ) . ... Conversion of mean time to sidereal time (with accuracy 0.001 s and 0.0001 s ) . ...

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

Computer Ephemeris. Ephemeris for physical observations of Saturnian rings. Explanations. ... semimajor axis of outer ring - a - (seconds), . ... planetocentric longitude of the Earth minus 180 o - U - (degrees) . ... position angle of semiminor axis of the rings- P - (degrees) . ... heliocentric position angle of semiminor axis of the rings - P' - (degrees) . angular distance from ascending node of the rings on Earth's equator to ascending node of the rings on ecliptic- omega - (degrees) ...

... These reports are submitted for engineering work accomplished during bright time and maintenance shutdowns. ... 010531: May 2001 Bright Time Engineering Work Summary . ... 020102: January 2002 Bright Time Engineering Work Summary . 020202: February 2002 Bright Time Engineering Work Summary . ... 030101: January 2003 Bright Time Engineering Work Summary . ... 040101: January 2004 Bright Time Engineering Work Summary . ... 050101: January 2005 Bright Time Engineering Work Summary . ...

Gleb OSHANIN (LPTL, Paris-6 Jussieu): Random walk generated by random permutations . ... We determine exactly the probability of finding the walker at position X at time moment l and show that this distribution converges to a Gaussian when l tends to infinity. ...