... Большинству любителей недоступны крупные телескопы типа как Алькор и Мицар,и они останавливают свой выбор на таких недорогих компактных и моблильных инструметнах как зрительные трубы и монокуляры. Самые распространенные среди них - ЗРТ-457 и МП 20х60. За три года работы с этими инструментами я выявил не мало их скрытых достоинств, впрочем как и недостатков и хочу ниже в кратце рассказать о них. ... Поговорим об оптических достоинствах трубы. Они несколько хуже, чем у монокуляра. ...

... Contacting and discussing with people sharing your interests, participating in night sky observations with telescopes as well as a large choice of astronomical books, magazines and video-tapes out of our club library. ... The seasons, the seeing ( a clear sky is not always associated to calm , stable air ) and most important how dark your observation site is. ... Therefore a dark site for observing is at least as important for deep sky observation as the diameter of your scope. ...

Next: EPIC Related CCF Components Up: XAreaEf Previous: Generation from Ground Calibration Contents . It is not foreseen to perform absolute in-orbit effective area measurements. ... Also, contamination effect if any during launch and telescope tube outgazing phase could induce CK and OK absorption edges as well as a modification of the mirror reflectivity close to the Au M absorption edges. Such effect were not detected in the spectra of lineless BL LAC objects. ...

... О Далекой Галактике . ... Теперь в Далекой Галактике вы всегда можете увидеть свежие фотографии Солнца. ... Форум . Форум "Далекой Галактики" - прекрасное место для общения всех астрономов. ... Новости из космоса . ... Подписаться на новости Далекой Галактики Вы можете здесь: . ... Новости из Далекой Галактики - популярно об Астрономии . ... Если вы хотите выразить свое мнение о сайте "Далекая Галактика", или просто почитать мнения других посетителей - пожалуйста, заходите в Гостевую книгу . ...

Central Bodies Masses of Selected Globular Clusters N.A.Shakht, A.A.Kiselev, Yu.N.Gnedin and E.A.Grosheva. The Main Astronomical (Pulkovo) Observatory RAS 47 Tuc ­NGC 104 RA 00 24 .1 Dec -72° 04 .9 Size = 30.9 mvis + 4. 0 m D from = 12,1 kpc, h m Cen - NGC 5139 NGC 6397 (Ara) RA 17 h40.m7 Dec -53o 40'.4 Size = 31',0 mvis + 5,3m D from =2.3 kpc RA 13h 26m .8 Dec -47° 28 6 Size = 36.3 m vis +3. 7 m D from =15.8 ±1.1 kpc, 12109 years, Age: 10109 years, (13.4 ± 0.8)109 years. ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . The Hubble Space Telescope is a coooperative program of the European Space Agency (ESA) and the National Aeronautics Space Administration (NASA) to operate a long-lived space-based observatory for the benefit of the international astronomical community. ... Web Site . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . ...

... 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. ...

Text of these problems is available also in other languages : . ... What can one see in the Moon's sky more often - the Sun or the Earth? ... There are about of 250 millions of stars in the elliptical galaxy M32 (a satellite of Andromeda galaxy). ... The masses of Capella's components. ... You are proposed to estimate the masses of Capella's components, using our observational data. ... A galaxy's mass. ... Estimate the mass of FGC 1908 and compare it to the mass of our galaxy. ...

... Освоение космоса (Модератор: Chepurny ) > . E-ELT (European Extremely Large Telescope) . ... Благодарностей: 0 . ... 13 Май 2010, 12:14:53 ? Европейский чрезвычайно большой телескоп" (European Extremely Large Telescope - E-ELT) будет построен в горах пустыни Атакама, объявила на днях Европейская южная обсерватория. ... Ответ #1 : 13 Май 2010, 12:29:34 ? ... Цитата: ds40a от 13 Май 2010, 12:29:34 Field of view: 10 arcminute diameter . ... Цитата: ds40a от 13 Май 2010, 13:28:02 И я о том-же. ...

. Back to A.Zasov's homepage.

... 2008 . ... 2006 . ... Сегодня: 10 апреля 2016 г. Специалисты из European Southern Observatory утвердили план, согласно которому через три года европейскими учеными начнется сооружение гигантского оптического/инфракрасного телескопа European Extremely Large Telescope. ... Он даст наземной астрономии новые, до этого невиданные, возможности. ... Первое зеркало телескопа будет состоять из 906 шестиугольных сегментов, каждый размером в 1,45 метров. ... Решение по этому вопросу будет принято к 2008 году. ...

... The night sky observatory supports the versatile ARC 3.5-m telescope which studies a variety of astronomical objects using synoptic programs requiring many short observations over long periods, as well as responding quickly to targets of opportunity; and, the Sloan Foundation 2.5-m telescope which continues its internationally-recognized survey programs by exploring dark energy, the dynamics and evolution of the Milky Way Galaxy, and the architecture of planetary systems. ...

... Spectrum-RG is joint project of Russian Federal Space Agency (Roscosmos) and German Space Agency (DLR) of X-ray astrophysical observatory. Its main aim is to make all-sky survey in the X-ray (0.5-11 keV) band in order to find all massive clusters of galaxies in the Universe, millions of active galactic nuclei, including obscured ones and hundreds of thousands of Galactic X-ray sources. ... eRosita (Germany) X-ray grazing-incident mirror telescope, consisting of 432 mirrors combined in 7 modules. ...

... Field of research: Extragalactic astronomy. ... NASA Astrophysics Data System (ADS) Abstract Service . ... CADC Home Page . ... CCD Images of Galaxies . ... RUSSIAN LINKS . ... UA Astronomy Personal Home Page - Bill Keel . ... The Shape of the Rotation Curves of Edge-on Galaxies, by A.V.Zasov and A.V.Khoperskov, 2003. ... A Thickness of Stellar Discs, by A.V.Zasov, and D.V.Bizyaev, 2003 . Minimum Velocity Dispersion in Stable Stellar Disks, by A.V.Khoperskov, A.V.Zasov, and N.V.Tyurina, 2003 . ...

... Научная панорама ? arxiv:0709.2048 Cherenkov Telescope Array . ... arxiv:0709.2048 Cherenkov Telescope Array: следующее поколение наземных гамма-обсерваторий (Cherenkov Telescope Array: The next-generation ground-based gamma-ray observatory) . ... Прочитать про это можно в статье, а можно на сайте проекта <A HREF=" http://www.mpi-hd.mpg.de/hfm/CTA/ ">CTA</A> (Cherenkov Telescope Array). http://xray.sai.msu.ru/~polar/sci_rev/168.html#arxiv/0709.2048 . ...

... 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 . ...

. F IGURE . 5. Relation between metallicity and (a) cluster Galactocentric distance and (b) distance from the Galactic plane. The straight lines are the rms regression fits for the thick-disk, entire Galaxy, and halo from top to bottom, respectively. The slopes of the lines yield the corresponding metallicity gradients. discussion in the text | previous figure | next figure .