While engaged in the forenoon of Thursday, September 1, in taking my customary observation of the forms and positions of the solar spots, an appearance was witnessed which I believe to be exceedingly rare. The image of the sun's disk was, as usual with me, projected on to a plate of glass coated with distemper of a pale straw color, and at a distance and under a power which presented a picture of about 11 inches diameter. ... Exploration" home page (index) Glossary . Official GSFC Home Page .. ...

... The overall globular cluster population is divided by gap in the metallicity function at [Fe/H]=-1.0 into two discrete groups with well-defined maxima at [Fe/H]=-1.60?0.03 dex, and -0.60?0.04 dex. ... Clusters with extremely blue horizontal branches occupy a spherical volume of radius ~ 9 kpc, have high rotational velocities ( V rot =77?33 km/s), have substantial and equal negative radial and vertical metallicity gradients, and are, on average, the oldest group (the old-halo subsystem). ...

The Richland Astronomical Society is a nonprofit organization formed in 1960 to promote the advancement of amateur astronomy. ... Mike Romine - President/Board Member . ... Bob Kocar - Treasurer/Board Member/Grant Coordinator . ... Eric Heintz - Assistant Observatory Director/Board Member . ... Tammy Plotner - President Emeritus/Webmaster (www.wro.org)/Astronomical League ALCor. ... Site content is maintained by Webmaster Tammy Plotner and Assistant Webmaster Greg DeChant All rights reserved. ...

... В начале это было связано с ростом числа ученых (всем письма не напишешь). ... Архив электронных препринтов - потрясающая вещь. ... Сейчас архив включает в себя астрономию, физику высоких энергий, физику сплошной среды, гравитацию и космологию, мат. физику, ядерную физику, квантовую физику, математику, исследования нелинейных систем, computer science и некоторую "корзину" - раздел физика - включающую в себя по мимо прочего подразделы "популярная физика" и "история физики" . ...

Общая Астрономическая Конференция > Практика > Астрономический наблюдательно-информационный портал > Звездные ассоциации - шаровые скопления (поиск и описание) .. Шаровые скопления Терзяна (Terzan globular clusters) .. ... Поиск . ... Terzan 5 подробнее о шаровом скоплении читайте здесь (# 861 ) . ... Звездные ассоциации - шаровые скопления (поиск и описание) .. ... Messier 13 Great Globular Cluster in Hercules (M13) - шаровое скопление NGC 6205 (Melotte 150) в созвездии Геркулес (Hercules) .. ...

... Up: Data Analysis Tools, Techniques, and Software . Previous: An Automatic Astronomical Classifier Based on Topological Neural Networks . ... Teuben, P. J., Wolfire, M. G., Pound, M. W., & Mundy, L. G. 2000, in ASP Conf. ... P. J. Teuben, M. G. Wolfire, M. W. Pound, L. G. Mundy . ... We have assembled a cluster of Intel-Pentium based PCs running Linux to compute a large set of Photodissociation Region (PDR) and Dust Continuum models. ... 2000). ... Teuben, P. J. 2000, BIMA memo (in preparation) . ...

... ESA Science & Technology, 2010 INTEGRAL completes the deepest all-sky survey in hard X-rays . ... The Obscured Universe 6th Integral Workshop held at IKI . ... Август 2012 // INTEGRAL Picture of the Month . ... Апрель 2012 // INTEGRAL Picture of the Month . ... Июль 2010 // INTEGRAL Picture of the Month . ... август 2006 // INTEGRAL Picture of the Month . ... июль 2006 // INTEGRAL Picture of the Month . ... март 2006 // INTEGRAL Picture of the Month . ... ноябрь 2005 // INTEGRAL Picture of the Month...

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

Alexey Rastorguev's links to DataBases and Catalogs: . ... Open Clusters and Galactic Structure База данных и каталог рассеянных скоплений Галактики . ... USNO: Astronomical Applications Каталоги и базы данных - проекты Морской Обсерватории США . ... HST Science Data Archive Архив данных HST . CFHT Data Archive Архив данных CFHT . ... USNO Recommended Star Catalogs (Zacharias N. et al.) ... USNO Star Catalogs Каталоги USNO . ... USNO-B1.0 Catalog Астрометрический каталог USNO-B1.0 . ...

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... In 1930, Trumpler noticed that linear diameters (LD) of open clusters increase with distance (D) from the Sun. ... Since that time, the interstellar absorption has become one of the best studied factor in astrophysics, and we may hope that current OCL distance scales are free from this LD-D correlation. To verify if this is the case we have chosen several modern OCL distance scales and test them with the same clusters and the same angular diameters that Trumpler had used back in 1930. ...

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

... Rashba, T.I. ; Semikoz, V.B.; Valle, J. W. F., ?Radiative zone magnetic fields and g-modes in the Sun?, ... V.B. Semikoz, D.D. Sokoloff, ?Large ?Scale Magnetic Field Generation by ? ... V.B. Semikoz, D.D. Sokoloff, ?Magnetic helicity and cosmological magnetic field?, ... V.B. Semikoz, D.D. Sokoloff, ?Large-scale cosmological magnetic field?, ... V.B. Semikoz, D.D. Sokoloff, J.W.F. Valle, ?Is the baryon asymmetry of the Universe related to galactic magnetic fields?? ...

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Научная электронная библиотека (www.elibrary.ru) - содержит полнотекстовые версии журналов издательств Blackwell Science , Cambridge University Press , Elsevier Science , Kluwer Academic Publishers Springer и др. ... Astronomy and Astrophysics (1997-2000) . ... Solar Physics (1996-) Перед использованием ресурса Вы должны заполнить персональную карточку , выбрав себе индивидуальный логин и пароль. ... Annual Review of Astronomy & Astrophysics v.1 (1963) -- v.33 (1995) . ... v.1 (1895) -- v.473 (1996) . ...

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... Сегодня: 10 апреля 2016 г. Астрономы установили, что четверть всех шаровых скоплений в Млечном Пути родом из других галактик. ... В рамках исследования ученые провели анализ состава и возраста большого количества шаровых скоплений. ... Анализ, проведенный астрономами, позволил выявить, что большинство скоплений существовали в карликовых галактиках. ... Глава NASA отправил будущих американских астронавтов на Марс . ... Млечный Путь оказался оккупирован скоплениями из других галактик . ...

... Prof. J. Hough, dean of Physical Sciences Dept. ... Dr. T. Gledhill . ... PDF file ] . Gledhill T.M., Takami M. (2001) Scattered light models of the dust shell around HD 179821. ... Hough J.H., Aitken D.K. (2003) Polarimetry in the infrared: what can be learnd? Journal of Quantitative Spectroscopy and Radiative Transfer , v.79-80, p.733-740. ... Lucas P.W. (2003) Computation of light scattering in young stellar objects. ... 2003) Scattering of light from atmospheric ice analogues. ...

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

... Meade Instruments Corporation . ... Autostar Computer Controllers . 497 Autostar . ... One of the most important advances in telescope control in the past 25 years, the Meade #497 Autostar Computer Controller turns the ETX into an automatic celestial object locating system. ... The #497 Autostar Computer Controller plugs into the control panel of ETX-90EC, ETX-105EC, and ETX-125EC telescopes and enables automatic location of more than 30,000 celestial objects. ... about meade | ... Meade 4M | ...