... This is combined emission from all the gas clouds circling the black hole, between 0.1 and 10 light years out. ... These are the expanding clouds of gas left behind when a massive star comes to the end of its life and explodes, producing a supernova. ... Also known as the Veil nebula, a vast and beautiful whispy nebula left over from an exploding star. ... The Crab Nebula (120kb). ... Carbon Star (120kb) Red giant stars, surrounded by clouds or carbon dust. ... 3500 K star (64kb) , like Aldebaran. ...

... std . tr1 . ... std::tr1::array< _Tp, _Nm > Struct Template Reference . ... typedef std::size_tљ . ... typedef const value_type & std::tr1::array < _Tp, _Nm >:: const_reference . ... typedef std::reverse_iterator< const_iterator > std::tr1::array < _Tp, _Nm >:: const_reverse_iterator . ... typedef std::ptrdiff_t std::tr1::array < _Tp, _Nm >:: difference_type . ... typedef value_type & std::tr1::array < _Tp, _Nm >:: reference . ... typedef std::size_t std::tr1::array < _Tp, _Nm >:: size_type . ...

... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...

Blackholes2 Forum Message . Forums: . ... Discussion Forums | ... Post . ... Please Give The Reference. Forum List | ... Post Message | ... Posted by Becky on October 3, 2003 05:27:58 UTC . ... Reference - yanniru - October 3, 2003 - 12:54 UTC . Login to Post . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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It could be that SETI signals have arrived at the Earth, but are lower then the noise level, and our receivers cannot detect them. ... Fig. ... It follows that two zones form around the star with civilization X: "Zone Yes", where its SETI signal can be detected, and "Zone No", where its signals are hidden by noise (Fig. ... In practice, it is more efficient to use a time factor, since the problem of SETI contact does not limit the duration of the signal element and semantic text. ...

... right ascension (J2000) . declination (J2000) . 5-GHz total flux density . ... 1.1 Jy . ... 0.026 * = the position has been determined to an accuracy of 10 mas from the VLBApls data . Correlated flux density (Jy) vs. projected baseline length plot . ... A comment is given in the VLBApls paper. VLBApls reference: Fomalont et al. 2000), ApJS, 131, 95-183 . VLBApls home page . Last modified: 17 Oct 2000 ...

ПЕРЕЛ?К ПУБЛ?КАЦ?Й СП?ВРОБ?ТНИК?В ГАО . ... JENAM- 97 on "New Trends in Astronomy and Astrophysics ", Thessaloniki, Greece, July 2-5,1997. 1997 . ... Dement'ev M.S. New interpretation of the ancient constellations. ... 1997 . ... JOURNEES 1997: Systemes de Reference Spatio- Temporels, Prague, Sept. 22-24., 1997. 1998 . ...

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... available from http://www.vsop.isas.ac.jp/ops/VSOG_doc.html . draft dated 1 July 1996. ... dated 12 March 1996. ... version 2.0, dated 14 Dec 96. ... version 2.0, dated 19 Feb 1996. ... version 1.0, dated 11 October 1996. ... version 3.0, dated 10 April 1996. ... version 1.1, dated 30 July 1996. ... version 1.10, dated 13 Nov 1996. ... version 1.0, dated 05 Sep 1997. available from http://www.vsop.isas.ac.jp/ops/VSOG_doc.html . ... draft version dated 27 November 1996. back to top . ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . ... Flights Chronology . ... Sea Launch . ... Land Launch . ... History of flights . ... Land Launch - Injection Profile . ... 1-st burn of Block DM-SLB (Injection into reference orbit) . ... LV two stages provide the orbital block injection into the open orbit with negative perigee; by three burns of the Upper Stage main engine the spacecraft is injected into the given target orbit. ...

VII/26D Uppsala General Catalogue of Galaxies (UGC) (Nilson 1973) ================================================================================ Uppsala General Catalogue of Galaxies (UGC) Nilson P. =1973ugcg.book.. ... The order of the records is strictly by UGC number; i.e., the Addenda records follow their main catalogue counterparts in the file. ... Major axis of the galaxy as measured on the POSS blue print. ... References: Nilson, P. 1973, Uppsala General Catalogue of Galaxies, Uppsala Astron. ...

Формат DjVu требует для своего просмотра установки на машину специальной программы (Plug-in), которую можно свободно скачать как для Windows-машин (около 5 Mb), так и для Unix-машин (около 2 Mb). ... The following keyboard shortcuts allow you to quickly navigate through a DjVu document. They work when you type them while the plug-in window has keyboard focus (click on the DjVu document anywhere except within a hyperlink to gain keyboard focus). ... Page Up . ... Display the DjVu Help page. ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Observing Podcasts . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Chandra X-ray Observatory, Cambridge, Massachusetts . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... All the galaxies are divided into 4 groups depending on the environment type; every subsample contains more than 10 galaxies. ... An effect of environments is seen both for the nuclei and for the bulges: if we consider the clusters (Virgo and Ursa Ma jor) and group centers as dense environments and the field and group periphery as sparse environments, then in the dense environments the stellar populations of S0s are in average older by 4­5 Gyr than in the sparse ones. ...

... Сегодня: 10 апреля 2016 г. [SpaceViews] Компания PanAmSat, крупнейший мировой оператор телекоммуникационных спутников, объявила о намерении заменить на орбите спутник Galaxy 8-i, в двигательной системе которого возникли неполадки. ... Однако топливо в этом двигателе закончится к концу 2002 г. И если к этому времени не удастся восстановить работоспособность ионного двигателя XIPS, то спутник Galaxy 8-i будет потерян. ... PanAmSat разрабатывает план замены спутника Galaxy 8-i . ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE ANCIENT UNIVERSE . c) The Age of Light from the Most Distant Galaxies: The "Time Machine" Effect . ... Thus we are actually seeing these galaxies not as they are today, but as they were billions of years ago. ... The Universe: An Overview | ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

The divisity of galaxies. The galaxies are the giant (to hundred of billions of stars) star systems, where the stars are connected by gravitation laws with each other. ... Ther galaxy NGC 3031 . ... Each spiral galaxy has a core a flat disk where the spiral brancher locate. The stars and interstellar substance of spiral galaxies rotate around the core. ... In normal galaxies, such as our Galaxy, the great brightness of the core is accounted for the high concentration of stars. ...

... Astronomy news . ... NASA's Spitzer Images Out-of-This-World Galaxy . ... It is spiral-shaped like our Milky Way, with long, spindly arms of stars. The "eye" at the center of the galaxy is actually a monstrous black hole surrounded by a ring of stars. In this color-coded infrared view from Spitzer, the area around the invisible black hole is blue and the ring of stars, white. ... The ring around the black hole is bursting with new star formation. ...

Catalogue of eclipsing variables (CEV) is the world's principal database of eclipsing binary systems with available classification. CEV contains identifications, classifications, photometry, periods, eclipses data, spectral types, references and notes for 7179 systems. Format of the current CEV . CEV main table (~1.0MB) . ... List of systems, erroneously classified as eclipsing binaries in GCVS (they are not included in the CEV main table) Download all files as a single archive (~0.6MB) . ...