Asteroid 2055 YU55 passes close by Earth; how close did it get? ... As Elizabeth Flock reported: An asteroid the size of an aircraft carrier missed Earth by only 200,000 miles as it flew by Tuesday night the closest an asteroid has been to Earth in 200 years Asteroid 2005 YU55, as it has been dubbed, streaked by at about 30,000 mph, but some scientists and lucky amateur astronomers caught a glimpse in their telescopes, where they saw strange structures on the asteroid\u2019s dark-colored surface. ...

Next: The Stellar Population in Up: NICMOS Science Previous: NICMOS Coronagraphic Surveys-Preliminary Results . ... Searching around young stars . ... We are using NICMOS to search for very low-mass stellar and sub-stellar companions around nearby, young, main-sequence stars. ... NICMOS, coronagraph, young stars, brown dwarfs . ... We present images of a possible companion, probably a low-mass M star, to the star HD102982 which demonstrates our ability to detect substellar objects. ...

Outer Natural Satellites Orbits Ephemerides. ... Choose type of the ephemeride: . ... Values of the orbital elements [ output e sin( ), e cos( ), sin(i) sin( ), sin(i) cos( ) ] . Distances between the osculating orbits . ... Choose Second Satellite (for the distances) N9 Halimede N10 Psamathe N11 Sao N12 Laomedeia N13 Neso . ... Enter initial date (years) . Enter final date (years) . ... inclination deg. pericenter deg. node deg. Enter upper limit of frequency deg/year . ...

Next: Imaging by an Optimizing Method . ... A big advantage of this numerical integrator is its stability: the error in the semi-major axis and the eccentricity depends only on the step size and does not grow with an increasing number of time steps. ... As the integration time increases, the numerical results become more contaminated by various errors. ... A new symplectic integrator produces no secular truncation errors in the actions of a Hamiltonian system. ...

... SUPER RATIO . ... On this page I will present the most important (on my opinion) idea on Intellegence Life in the Universe . ... On the problem of the Super Ratio in astrophysics" . ... As a matter of fact, this is the main problem of the modern natural science. ... Here I shall try to speak about the most important problem of the modern natural science, the problem which is undoubtedly, of more importance than discovery of Blacks Holes, creation of Grand Unification Theory or Artificial...

... Dr Lanzerotti is an expert in solar and planetary geophysics and space plasma physics, and will be speaking about research using the NASA/ESA spacecraft Ulysses. ... Leonardo da Vinci, on the eye NEAF 2004 April 17, 18 The largest astronomy forum and astronomy equipment show in the Northeast, hosted by the Rockland (NY) Astronomy Club and Sky & Telescope, will take place in Suffern NY (about 2 hr drive from Princeton). See the website http://www.rocklandastronomy.com/neaf. ... Dark Skies! ...

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. ...

... Sky surveys and deep fields of ground-based and space telescopes History · William Herschel (1738-1822) was the first to formulate the problem of global sky surveys to study the structure and evolution of the world outside the solar system. ... The VVDS (VIMOS-VLT Deep Survey) is a photometric and spectroscopic survey of 100,000 galaxies within several deep fields covering 16 sq. deg. with the VIsible Multi-Object Spectrograph (VIMOS) on the ESO VLT telescope. ...

Large-Scale Structure of the local Universe with INTEGRAL observatory >200-300 , . ... It is now widely accepted, that practically every galaxy in the local Universe has supermassive black hole and some of these black holes are AGNs. ... 136 ( ) 49- . ... The map of the survey is shown on the left. ... Using Hard X-ray all-sky survey such important properties of nearby Universe as energetics of accretion to the supermassive black holes and large-scale mass distribution of matter were studied. ...

... ASTEROID’S MOONS : DISCOVERY BY RADAR . ... Moons of known asteroids have a low position ambiguity, which makes their discovery with powerful ground-based radar much easier than the discovery of new asteroids or other objects of Solar System. ... The other technique is a direct detection of radar echo from an asteroid moon. ... However, the diameter of a ground-based fully-steerable reflector is limited by 120-150 m to make it possible to perform two different functions: focusing and tracking (fig. ...

... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Series 6000 APO Refractors . ... These telescopes come with all necessary equipment in the box and feature an altazimuth mount that allows for easy and quick viewing. ... Coronado Accessories . ... TerraStar 90 Altazimuth Refractor . ... Meade TerraStar 90 Altazimuth Refractor #04085-1. ...

... IONOSPHERIC DATA IN THE INTERACTIVE SPIDR SYSTEM . ... The Ionosphere The ionosphere is that part of the upper atmosphere where free electrons occur in sufficient density to have an appreciable influence on the propagation of radio frequency electromagnetic waves. ... These regions may be further divided into several regularly occurring layers, such as F1 or F2. ... E Region: The region between about 95 and 150km above the Earth that marks the height of the regular daytime E layer. ...

... It was a great privilege for me to live and work for dozens of years within that scientific and humanist community, especially for sixteen years at PhIAN. ... Mandelshtam began his research at the University of Strasbourg (Germany) with the famous physicist Karl Ferdinand Brown, who was the recipient of the 1909 Nobel Prize in physics together with Guglielmo Marconi for developing wireless telegraphy. ... Mandelshtam's collected works show that he was equally familiar with all the branches of...

... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

Альтернативный форум . Scientific.ru Все форумы . ... x203a; x203a; x203a; в ответ на: Академик Владимир Арнольд - "бурбакизированное образование в математике " Александр Тимофеев . ... Академик Владимир Арнольд - "бурбакизированное образование в математике " Александр Тимофеев, 21.04.2005 15:56 . ... Re: Академик Владимир Арнольд Alex K, 22.04.2005 15:45 . ... Александр Тимофеев, 23.04.2005 14:42 . ... Re: Академик Владимир Арнольд о А. Н. Колмогорове Александр Тимофеев, 21.04.2005 20:00 . ...

... Astronomy news . ... Double Engine Fuels Star's Remarkable Nebula . ESO has just released a stunning new image of a field of stars towards the constellation of Carina (the Keel). ... Interactions in this double system, surrounded by a dusty disc, may be the engine fuelling the star s remarkable nebula. The new image, showing a very rich field of stars towards the Carina arm of the Milky Way, is centred on the star HD 87643, a member of the exotic class of B[e] stars [1]. ...

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... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

MINUTES of the RadioAstron Teleconference on January 19, 2011 N. Kardashev chaired the teleconference. ... NRAO and MPIfR representatives expressed their willing to correlate RadioAstron data, and they stressed the necessity of agreements on the formats of correlator logs, time-correction file, and reconstructed orbit presentation. ... New Zeland JIVE, The Netherlands ASC, Russia NRAO, USA NRAO, USA ASC, Russia ASC, Russia NRAO, USA ASC, Russia MPIfR, Germany ASC, Russia JPL, USA NRAO, USA NAIC, USA ...

RSSI wish to thank NASA and NASA Internet staff for their great cooperation. ... In October 1993, NASA Internet hosted three russian engineers for a three week training program which included courses on the following subjects: router configuration, IP routing, Domain Name Service, network security, network trouble shooting and network management. In May 1995, two RSSI engineers received additional training in network security and network operations at the NASA Internet site. ...