. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

... Home Observing Charles Dana Discovery Center, Central Park . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Charles Dana Discovery Center . ... 6:30тАУ8:00 p.m. The Charles Dana Discovery Center is just inside Central Park, near 110th Street between Lenox and Fifth avenues ( map ). ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

Next: A box, to include Up: To produce a region Previous: To produce a region . select cursor and circle . When in the image window, the mouse now has a box shape with an arrow at the upper left corner. The mouse buttons act as follows: . LEFT - to move the center of the circle at the position of the arrow point. ... RIGHT - idle. center the circle at the point source by positioning the arrow point and clicking on the LEFT mouse button. A circle will appear at the arrow position. ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

... A Bubbling Galaxy Center . ... Close inspection of the center of NGC 4438 , as visible in this recently released representative-color image by the Hubble Space Telescope , reveals an unusual bubble of hot gas, colored in red. Astronomers speculate that this strange bubble was created by a massive central black hole that resides there. ... Publications with keywords: black hole - galaxy center - hot gas . Publications with words: black hole - galaxy center - hot gas . ...

... Resembling a gigantic hubcap in space, a 3,700 light-year-diameter dust disk encircles a 300 million solar-mass black hole in the center of the elliptical galaxy NGC 7052. ... Because the front end of the disk eclipses more stars than the back, it appears darker. ... Despite its size, the disk is 100 times less massive than the black hole. ... The bright spot in the center of the disk is the combined light of stars that have crowded around the black hole due to its strong gravitational pull. ...

... 2000 June 12 . A Bubbling Galaxy Center . ... Close inspection of the center of NGC 4438 , as visible in this recently released representative-color image by the Hubble Space Telescope , reveals an unusual bubble of hot gas, colored in red. Astronomers speculate that this strange bubble was created by a massive central black hole that resides there. ... Some of the hot gas then falls into the black hole , but not all - some gas gets so hot it shoots out the poles in fast jets . ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

... HUBBLE UNCOVERS DUST DISK AROUND A MASSIVE BLACK HOLE . Resembling a gigantic hubcap in space, a 3,700 light-year-diameter dust disk encircles a 300 million solar-mass black hole in the center of the elliptical galaxy NGC 7052. ... Because the jets in NGC 7052 are not perpendicular to the disk, it may indicate that the black hole and the dust disk in NGC 7052 do not have a common origin. ... NGC 7052 is located in the constellation of Vulpecula, 191 million light-years from Earth. ...

... Triggers the use of multiple phase center processing on the DiFX correlator at least at the VLBA. In practice, this puts the list of phase centers in the .v2d file used in setting up correlation. ... The argument of CENTERS must correspond to a list of names in the phase center groups listed after a PCENTERS command. For now, there is no clear way to make the phase center list scan dependent, so specify the same name for each scan on the same source. ... Usage: Keeps value of previous scan. ...

. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

... SEARCH ASP SITE: Match ALL words Match ANY word . ... Amateur Astrophotography . ... Amateur Astronomers Association of Pittsburgh . Astronomical Society of Harrisburg . Berks County Amateur Astronomical Society . ... Central Pennsylvania Observers . ... Lehigh Valley Amateur Astronomical Society, Allentown . Starlight Astronomy Club . ... Sioux Empire Astronomy Club . ... Gallatin High Astronomy Club . ... Amarillo Astronomy Club . ... Laramie Astronomical Society and Space Observers . ...

At 08:32, Moscow Time, Soyuz TMA-14 descent vehicle returned to Earth. ... Russian cosmonaut G. Padalka (commander of ISS-19/20, commander of Soyuz TMA-14) and NASA astronaut M.Barratt (flight engineer of ISS-19/20 and of Soyuz TMA-14) completed their mission to the International Space Station (ISS) under the program of Expedition ISS-19/20, and a spaceflight participant, Canadian citizen G. Laliberte has completed his mission under the program of the 17th visiting mission. ...

... 8, ``Celestial Mechanics'', 2002 High orbit for the RadioAstron project N. S. Kardashev, B. B. Kreisman, Yu. N. Ponomarev Astro Space Center of the Lebedev Physical Institute, Moscow, Russia RadioAstron project is an international collaborative mission to launch a free flying satellite carrying a 10­meter radio telescope in elliptic orbit around the Earth [1,2]. ... For RadioAstron mission it is proposed to use one K­band circular polarized chan­ nel at fixed frequency 22.232 GHz. ...

... GIVE A GIFT . ... Give a Gift . ... Get to Know the Night Sky . ... Gift Center . ... I have been trying to get my head around "there is no center to the universe" without success. Can you give a layman's explanation? ... To wrap your mind around it, first accept that the Big Bang was not an explosion in space the way we naturally perceive it. ... Get instant access to subscriber content on Astronomy.com! ... Get full access to StarDome PLUS . ...

... This paper presents an overview of the CENTERFIT image centering algorithm library currently under development in the IRAF system. ... The centering algorithms employed by these applications must satisfy a wide range of efficiency and accuracy requirements, and function robustly on data sets spanning a broad wavelength, resolution, and signal-to-noise regime. This paper presents an overview of CENTERFIT, a library of 1-D and 2-D centering algorithms currently under development in the IRAF system. ...

PUL VLBI Analysis Center . ... IVS : International VLBI Service for Geodesy and Astrometry . ... An IVS VLBI Analysis Center at the Central Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, also widely known as Pulkovo Observatory, has been organized in September 2006. ... The center is a part of the Pulkovo EOP and Reference Systems Analysis Center (PERSAC) . ... Results of VLBI data analysis can be found at Pulkovo EOP and Reference Systems Analysis Center (PERSAC) page. ...