... We consider the astrophysical evolution of the Galaxy over large time scales, from early stages (an age of ~10 8 yrs) to the end of traditional stellar evolution (~10 11 yrs). ... In the model considered, the basic stages of Galactic evolution are as follows. ... Essentially all other basic parameters of the Galaxy vary little. ... The final "stellar epoch" in the life of the Galaxy is completed ~10 13 yrs after its formation, when the evolution of the least massive stars comes to an end. ...
Общая Астрономическая Конференция > Все про астрономическое оборудование > Астрономическое оборудование > Что скажете про этот бинокль? ... Просмотр полной версии : Что скажете про этот бинокль? Unforgiven . 16.11.2003, 03:35 . ... http://www.adorama.com/catalog.tpl?op=details&sid=1068947969437597&sku=BS131056 . Celestron 10x60 CF R/C Enduro binocular w/case дешевый . ... Celestron Optiview LPR 10x50 . ... http://att.dealtime.com/xPF-Celestron_Enduro_71186_10x60 . ...
... Appropriate values of DIT the integration time (DIT secs) for each individual integration, are lmited by various considerations. N.B. Ndit individual Integration s each of DIT secs are coadded to form a single Exposure of time Ndit*DIT]. The recommended minimum DIT is one sec (the minimum possible exposure time) or the value at which the noise becomes sky (rather than detector) limited. ... The recommended maximum DIT is such as to keep the detector wells less than half full. ... 40 sec . ...
... Epistemology is a part of the study of Philosophy dealing with how we use our senses to know something about the world. ... Yet we know that we can be deceived by our senses. ... If we cannot always trust our senses, how can we ever know anything for certain about the world? ... A branch of epistemology that has come into vogue in the last 10-15 years is the problem of consciousness. ... What relationship is there between our conscious experience and the true nature of the physical world? ...
... Проф. А.Д.Чернин (ГАИШ, МГУ, Москва): ЭНЕРГЕТИЧЕСКИЙ СОСТАВ ВСЕЛЕННОЙ: НОВАЯ СИММЕТРИЯ 13.00-15.00. ... Проф. Л.И.Мирошниченко (ИЗМИРАН, Троицк, Россия): СОЛНЕЧНОЗЕМНЫЕ СВЯЗИ В 23-ЕМ ЦИКЛЕ СОЛНЕЧНОЙ АКТИВНОСТИ Лекция 9 10.50-11.30. ... М.И.Рябов, А.Л.Сухарев (Одесская обсерватория Радиоастрономического института НАНУ) : О ПРОЯ ВЛЕНИИ ИЗМЕНЕНИЙ СТРУКТУРЫ ПЕРЕМЕННО СТИ ПОТОКОВ ВНЕГАЛАКТИЧЕСКИХ РАДИОИСТОЧНИКОВ 3С120, OJ287, 3С273, 3С279, 3С454.3 НА РАЗЛИЧНЫХ ФАЗАХ АКТИВНОСТИ 4. ... РИ НАНУ Гравиметр. ...
... 20.09.02. astro-ph за 16 - 20 сентября 2002 года: избранные статьи . ... Comments: 5 pages, 1 figure, to appear in The Astrophysical Journal, October 1, 2002 . ... В результате выделяется порядка 10 52-53 эрг. обзор astro-ph/0209263 . ... Comments: 6 pages. ... Comments: 14 pages, 10 figures; Invited Review, to appear in the Proceedings of the Conference "Origins 2002: The Heavy Element Trail from Galaxies to Habitable Worlds", 26-29 May, 2002, Eds. C.E. Woodward E.P. Smith, to be published by ASP ....
... Solar Data: f.e. X-ray . Night Sky Live . ... Heavens-Above: Sky chart, Satellites, Iridiums and astronomical objects For Moscow For SAO Baksan . ... ESO-MIDAS page . ... Tutorials for Astronomy . ... Asteroid and Comet Hazard . ... Observable Comets: This page lists links to orbital elements and ephemerides of (potentially) observable comets. ... Leonid page - a lot of information for years Comets and Meteor Showers . The American Meteor Society . ... North American Meteor Network Home Page . ...
... SUPERNOVAE 2005bv AND 2005bw . ... IAUC 8515; 0.60-m automated supernova patrol telescope ). ... Offset 2005bv љ Apr . ... IAUC 7178). SUPERNOVAE 2005bf AND 2005bq . ... IAUC 8515), obtained in the course of the Carnegie Supernova Project on Apr. ... IAUC 8507, 8509) is undergoing an unusual photometric behavior, brightening from u' = 18.69 on Apr. 7 to u' = 17.90 on Apr. 13, and declining to u' = 18.61 on Apr. 21, after which it has been re- brightening (reaching u' = 17.92 on Apr. ...
Date: Thu, 12 Apr 2007 18:15:45 +0200 (MEST) From: Alessandro Marconi <marconi@arcetri.astro.it> To: boch@sai.msu.ru Subject: Summer school on AGNs and VLTI Dear Colleague, here is the first announcement and call for applications for a VLTI summer school on "Active Galactic Nuclei at the highest angular resolution: theory and observations". ... It is supported by 15 EU member states, including new member states, and thus integrates the entire European optical interferometry community. ...
... arXiv.org . astro-ph . ... Submitted: 2008-03-26 . With the aim of studying magnetic effects in time-distance helioseismology, we use the first-order Born approximation to compute the scattering of acoustic plane waves by a magnetic cylinder embedded in a uniform medium. ... We also show that, for arbitrary magnetic field strength, the Born approximation is not valid in the limit where the radius of the magnetic cylinder tends to zero. [2] oai:arXiv.org:astro-ph/0701578 [ pdf ] - 88707 . ...
National Aeronautics and Space Administration . ... Karl G. Henize (Ph.D.) . NASA Astronaut (Deceased) . ... From 1974 to 1978 Dr. Henize chaired the NASA Facility Definition Team for STARLAB, a proposed 1-meter UV telescope for Spacelab. ... He was a member of the astronaut support crew for the Apollo 15 mission and for the Skylab 2, 3, and 4 missions. ... Dr. Henize was a mission specialist on the Spacelab-2 mission (STS 51-F) which launched from Kennedy Space Center, Florida, on July 29, 1985. ...
... 85, No. 11, pp. 972985. i The Stellar Population and Evolution of Galaxies of the NGC 80 Group O. K. Silchenko1 and V. L. Afanasiev 1 2 Sternberg Astronomical Institute, Universitetski i pr. ... The bulges of five of the seven galaxies appear to be old, with the average age of the bulge stars being 1015 billion years. Signs of a relatively recent star-formation burst are observed in the small S0 galaxy IC 1548, whose average bulge age is 3 billion years and average core age is 1.5 billion years. ...
... Звезды типа Миры Кита и полуправильные Среди пульсирующих переменных звезд поздних классов видное место занимают долгопериодические переменные звезды (ДПП). ... Изменения блеска мирид происходят более или менее регулярно, периоды большинства мирид находятся в интервале от 150 до 600 суток ( рис. ... В 4-м издании Общего каталога переменных звезд (ОКПЗ) ДПП (включая переменные типа Миры Кита, или мириды, и полуправильные переменные поздних классов) составляют самую многочисленную группу переменных. ...
... 000, 112 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...
Director : Kirk Alexander ( 609 ) 497-9356 kirk@ princeton .edu ereal times id s The Official Publication of the Amateur Astronomers Association of Princeton Treasurer: Ron Mittlestaedt ( 609 ) 771-6981 C8User@aol.com Secretary: Lisa Yeh (856) 396-0682 Lisa139a@aol.com Program Chairman: Mark Lopez ( 609 ) 393-2565 mal455@earthlink.net Editor: Victor Belanger ( 609 ) 448-8598 vic@apink.com Assistant Director : John Miller ( ... This is the date that your renewal membership is due with the AAAP. ...
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... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...
... Piotrovich Main Astronomical Observatory, Pulkovo, St. Petersburg, Russia Received May 24, 2006; in final form, July 7, 2006 Abstract--We have used two astrometric methods developed at the Main Astronomical Observatory of the Russian Academy of Sciences--the method of apparent-motion parameters (AMP) and a direct geometrical method (DGM)--to derive the orbit of the star S2 around the Galactic center, and thereby the mass of the supermassive black hole at the Galactic center. ... Relative positions. ...
... Освоение космоса (Модератор: Chepurny ) > . NASA - Cassini-Huygens . ... NASA . ... Оффлайн . ... Благодарностей: 0 . ... Ответ #40 : 27 Июнь 2007, 16:06:57 ? ... Июнь 13, 2007 - Результат обработки полученных зондом "Кассини" данных позволил ученым сделать вывод о том, что Энцелад, из которого в космос <хлещут> струи водяного пара, не уникален для системы Сатурна. ... http://www.universetoday.com/2007/06/13/two-more-of-saturns-moons-are-blasting-out-particles/ . ... Благодарностей: 1063 . ...