. Comment on J0334-4008 . Our image is not consistent with the one at 5 GHz by Shen et al. (1998) which shows an extension in the opposite direction to that seen in our image. A redshift of 1.445 is widely quoted for this source, but there is little to support this value. Drinkwater et al. (1997) were unable to measure a redshift for this source. VLBApls home page . Last modified: 16 Oct 2000
SciSim home . ... This thread contains a step-by-step recipe to simulate MOS SciSim data and how to procede to analyze this data using SAS. ... For tcsh shell execute: source $SCISIM_DIR/setup . ... In this example, we are explaining how to proceed in order to run a MOS simulation, so we have to load the Telescope-1 default configuration, if we want to simulate MOS1 and RGS1. ... Select the Source menu and the Edit... option. ... To create a source, hit the New button at the bottom dialogue. ...
... Новости ? ... Библиотека ? Форум ? ... Основы ? ... Colonization Основы астрономии Солнечная система . ... Уран - седьмая от Солнца и третья по величине диаметра планета Солнечной системы. ... Поэтому полярные области Урана получают большее количество энергии от Солнца, чем экваториальные области. ... У Урана 15 известных и имеющих названия лун и 5 недавно обнаруженных, еще не получивших наименования; таким образом, у Урана самое большое количество спутников из всех планет Солнечной системы. ...
... Trifid M20 . Снимок получен на светосильной камере системы Рихтера-Слефогта D=640 мм, f/1.4, экспозиция 20 мин, пленка Fuji 800. Туманность Trifid - облако межзвездного газа, освещенного относительно молодой звездой. Темные радиальные рукава пыли делят туманность на три части, отсюда и название "Trifid", что обозначает трехраздельная. ... Рядом с Trifid находится синяя туманность окружающая звезду HD 164514. ... Так мы видим свет звезды, отраженный от частиц пыли и холодного газа. ...
... Courtesy of NASA/ESA Observation data (J2000 epoch) Constellation Right ascension Declination Redshift Distance Type Serpens Caput 15h 17m 14.4s[] +21° 35 08[] 12,740±50 km/s[][1] 600±30 Mly (183±8 Mpc)[1] SA0(r) [citation needed ] [a] Apparent dimensions (V) 0.28 в 0.28[] Apparent magnitude (V) 16.0[] Notable features Ring galaxy Other designations PGC 54559,[] PRC D-51[] See also: Galaxy, List of galaxies Hoag's Object is a non-typical galaxy of the type known as a ring galaxy. ...
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Ссылки http://www.astro.louisville.edu/shared_skies/archive/select/unusual/hoags_object/20130412/hoags_object_wikipedia_20130422.pdf -- 498.8 Кб -- 22.04.2013 Похожие документы
... About 10% of the time is allocated to moving the telescope to the zenith and exchanging the spectrographic cartridges. ... Focus telescope (open-loop)* . ... TOTAL TIME (seconds) . ... This assumes two 60 second arc exposures and two 55 second readouts. ... Otherwise, the arc exposure will likely consist of a 30 second integration followed by a quick 28 second readout, half the normal time. ... The flat-field exposure can be read out with a quick 28 second readout, half the normal time. ...
. home - главная - автор - help english - russian . Извините, русский текст готов еще не для всех страниц . Общая . информация . Что нового? . Линия времени . Все 3D модели . Все фотографии . Ссылки . Разное . Планетарий, . астрокалендарь . Байконур . Спутники, собачки . Пилотируемые . полеты . Восток, Восход . Союз, Прогресс . Салют, Алмаз, ТКС . Мир . Межпланетные . аппараты . Луноход . Луна . Марс . Венера . Закрытые . проекты . Зонд . Н1,ЛК . Энергия-Буран .
Состояние вращения, в котором находятся спутники небесных тел, не является неизменным. ... Важным процессом также является выравнивание осей вращения планет и спутников, имеющих неправильную форму, с осью главного момента инерции. Спутники планет (и астероидов) теряют энергию своего вращательного движения при ее переходе в энергию поступательного движения. Сам спутник принимает при этом несколько вытянутую форму, подвергаясь приливному воздействию гравитационного поля главного тела. ...
... AMATEUR TELESCOPE MAKERS OF BOSTON The Am ateur Telescope Makers of Boston, Inc. ATMoB) is an am ateur astronom y club devoted to telescope m aking, observing, and the study of the stars. ... These m onthly m agazines, which can be found on m ost newsstands, contain general astronom y articles, m onthly observing inform ation, and star charts. ... For general observing inform ation on the Moon, planets, and sky phenom ena SKY REPORT, (617) 496-7827, Harvard-Sm ithsonian Center for Astrophysics. ...
... Bad Astronomy . ... Bitesize Astronomy . ... Universe Today . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... The only motions we see easily are the rising and setting of the Sun, Moon and stars, but that is a reflection of our own Earth's rotation. ... Usually, these objects are so far away that the distance itself shrinks the apparent motion, the way distant mountains hardly seem to move at all even though you may be driving past them at 100 kilometers an hour. ...
... IAU planet classification Observing with a Telescope Large Scale Structure The observables: Local Group (size 1 Mpc) Virgo cluster (size 2+ Mpc) Virgo supercluster (size ~33 Mpc) Voids (size ~ 10-150 Mpc), Walls and sheets, aka filaments (size ~ 50-80+ Mpc) 1 parsec The nearest star is 1.2 parsecs away (Proxima Centuri). ... Virgo supercluster Voids, Sheets Filaments The Virgo Cluster is a cluster of galaxies at a distance of about 18.0 Mpc away in the constellation Virgo. ...
... M111 Jan 2008 . ... New Members . ... Any time you have something you'd like to offer - be it a story of how you first got started in astronomy, a star party you just attended, a telescope you just bought, or your favorite constellation, just drop me a line with the story included and I'll be sure to get it posted! ... The flight computer onboard the Lunar Excursion Module, which landed on the Moon during the Apollo program, had a whopping 4 kilobytes of RAM and a 74-kilobyte ?hard drive.? ...
... I will touch upon the following points: fast evolution of the sizes of quiescent (elliptical) galaxies between z = 2 and z = 1; prolonged star formation histories of dwarf spheroidal galaxies in the Local Group; apparent lack of external sources of cold gas accretion for the nearby spiral galaxies; old stellar ages and magnesium overabundance of the large-scale disks of nearby lenticular galaxies. ... This discovery has challenged the recognized scenarios of elliptical galaxy evolution. ...
... A Splendid Visit to the Star Hill Inn, New Mexico In November I was fortunate to visit, with my wife Carol, one of the southwest's premier astronomy retreats, the Star Hill Inn north of Las Vegas, NM. ... I spent four nights observing under transparent skies which, when cloud free (one of four nights was pristine while the other three were clear about half the night), revealed magnitude 6.5 stars and, for example, M33 as a naked eye object! ... These efforts should not go unnoticed by AAAP members. ...
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Ссылки http://www.princetonastronomy.org/newsletters/12_2004sidereal.pdf -- 2181.1 Кб -- 09.12.2004 Похожие документы
T HE V I www.vista.ac.uk V ISTA'S ISIBLE & NFRARED S UR VEY T ELESCOPE FOR A STRONOMY .R 1.65DEGREE DIAMETER INFRARED FIELD OF VIEW FEEDS A APID DEEP IR 4- METRE PRIMARY MIRROR AND MEGAPIXEL OBJECTS FOR FOLLOW-UP WITH VLT, AND DIRECTLY STUDY A WIDE VARIETY OF ASTRONOMICAL TOPICS (0.34 PIXEL ) CAMERA (0.852.3µm) 64 IMAGING SURVEYS WILL BOTH SELECT . ... As an ESO telescope, VISTA and its large surveys will now be fully exploited by the whole ESO community. ... VISTA Figure 9: Telescope support base. ...
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Ссылки http://www.vista.ac.uk/Files/docs/VISTA_in_eso-messenger-no117.pdf -- 919.4 Кб -- 14.06.2012 Похожие документы