... It is assumed that you have available a calculator which can derive sines and cosines, and also has functions sin -1 and cos -1 which given sinA or cosA can find the angle A, in the range 0 to 180 degrees. A triangle ABC has a right angle C and two sharp angles A and B. The triangle's sides AC and BC on both sides of the right angle C are given as: . ... a) When a beam of light hits the surface of a flat piece of glass, it is generally bent by some angle. ... AP cos? = x sin? + y cos a . ...

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• The Lagrangian Point L1
• OFO IKI / Vacancies Available

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

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• Center for Linguistic Documentation

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

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... Exoplanets . ... Artists impression of the blue exoplanet. ... This exoplanet is located in the constellation of Vulpecula, the fox, a faint pattern inside the Summer Triangle.Т Т  This planet is a not too distant 63 light years away so has been studied by space-based telescopes.Т  Data collected from Hubbleт??s Imaging Spectrograph (STIS) when this planet moved behind its star showed that in the shadow of the star the light reflected from HD 189733b reduced into the blue part of the spectrum. ...

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• Hubble sees Saturn in a new light | Astronotes
• Comet ISON Puts on a Show for Hubble | Astronotes
• Astronotes 2006 Back Issues

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...

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... TCC User's Guide explains how to use the TCC from an Astronomer's point of view. TCC Commands describes the commands in detail. ... You can talk to one using the tcc command talk mirror_name " mirrorCtrl command " for example talk sec showparams . ... You can talk to one using the tcc command talk mirror_name "galil Galil command " for example talk sec "galil XQ#SHOWPARAMS" . ... You can talk to one using the command talk axis_name " axis controller command " for example talk az "MS.DUMP" . ...

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• lsst.tcc: tcc::PVAJT Class Reference
• Mirror Controller Actor
• lsst.coordConv: src/mathUtils.cc Source File

. NEdit is a popular GUI-style text editor for Unix and VMS systems. These are answers to the most frequently asked questions to discuss@nedit.org. This information is also available from: . ftp://ftp.nedit.org/pub/ <current>/FAQ, . and from the NEdit web page at: . http://nedit.org . Where to get information . Diagnosing and reporting problems . Building . Customization . Features . Server mode and nc . Editing techniques . Bugs . About the NEdit FAQ

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• Installation and Configuration
• comedi_poll
• Spectral energy distribution

Next: When the clock is Up: Keeping Time Previous: The hardware and software . In the Debian system, the system time zone is determined by the symbolic link /etc/localtime   . ... If it is unset, the system time zone is assumed. ... The date   command shows the current date and time. ... date   is also used to set the kernel's software clock: # date 07142157 . ... While each user can have his own time zone, the clock is the same for everyone. date   only shows or sets the software clock. ...

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• Research Technician Post
• Spectrum
• Objects in the Sky

... Jupiter. ... Determine the rate at which the dark cloud on the surface of Jupiter increased its length after the impact with the comet or asteroid by measuring the length of image fragments on the set of the 3 top images displayed on the right. ... The equatorial diameter of Jupiter is 143842 km. ... Comet. In the middle of July 2014, an automatic interplanetary spacecraft Rosetta of European Space Agency made the discovery that the comet 67P / Churyumovґ Gerasimenko had a bipartite nucleus. ...

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• http://www.issp.ac.ru/iao/2014/booklet/ia14_booklet_en1_page_B09.pdf
• http://www.issp.ac.ru/lhpp/PapersBashkin/126.pdf
• VIII International Astronomy Olympiad: information available before

... A star party is a gathering of amateur astronomers who set up their telescopes and observe the dynamic night sky. ... Star parties are best scheduled during first quarter and waxing gibbous Moon. During full moon, the moon is so bright it obscures a view of other celestial objects and even the Moon is best viewed when NOT full. ... We will consult local weather forecasters and make a decision by 2:00p on the day of the star party. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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• Raytrace Programs for ATMs

By using the tools of sections (20) and (21), the mathematics of approximate solutions developed in (M-5), and assuming all orbits are circles, it is a relatively straightforward job to calculate the distance to the Lagrangian L1 point (or to L2). ... Let the gravitational constant be denoted by G , the mass of the Sun by M , that of Earth by m , the Earth's distance from the Sun by r and its velocity in its orbit by v . ... GMm / r 2 = mv 2 / r . and multiplying both sides by r / m . ...

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• Current Solar Wind Conditions
• Comet Shoemaker-Levy 9
• Titan Press Release

... Сегодня: 10 апреля 2016 г. Главная камера космического телескопа Hubble возобновила работу, сообщает AP. Как говорится в официальном сообщении, распространенном NASA в пятницу вечером, главная камера телескопа, вышедшая 19 июня из строя из-за перегоревшего транзистора во "вспомогательной" микросхеме, переключена на запасной источник электроснабжения. ... Ожидается, что главная камера телескопа Hubble передаст на Землю первое изображение, полученное после ее ремонта, в ночь на понедельник. ...

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• Спасать космический телескоп Hubble будут российские космонавты?
• Космическому телескопу Hubble исполнилось 15 лет
• NASA все-таки отправит астронавтов для починки космического телескопа Hubble?

... Status of the numerical solutions and validation 2. ... Coupling of "solid" Earth components, e.g. core ґ mantle (Dehant et al.) ... Consistent relativistic formulation of Earth rotation (Gerlach, Klioner, Soffel) Status of the numerical solutions - 2 Ї The results from numerical solutions suffer from ґ Simplified solid Earth models ґ Incomplete Earth system models or neglecting of certain parts or neglecting of certain coupling mechanisms ґ Methodological limitations of computations...

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Late Release Notes for XFree86/OS2 3.3.6 (last updated: 09 Jan 2000) This file contains latest information that did not make it into the documentation by the time the version 3.3.6 was finalized. ... The documentation still frequently refers to the version 3.3.5 or older. ... PCI card detection. ... Reporting bugs: There is the official XFree86/OS2 bugs page <http://set.gmd.de/~veit/os2/xf86bugs.html> which is updated when new bugs are found (maybe even together with a workaround). ...

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• Late Release Notes for XFree86/OS2 3.3.6
• SGML reference information for HTML
• Solar photosphere mixtures for equation of state and opacities

Stellarium 0.12.3 . ... Class List . ... StelLocationMgr Class Reference . Manage the list of available location. ... locationForString (const QString &s, bool *ok=NULL) const . ... Get whether a location can be permanently added to the list of user locations The main constraint is that the small string must be unique. bool StelLocationMgr::deleteUserLocation . ... Return the StelLocation for a given string Can match location name, or coordinates. bool StelLocationMgr::saveUserLocation . ...

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• English
• Stellarium: Quasar Class Reference
• Stellarium: Supernova Class Reference

... Bad Astronomy . ... Site Info . ... One obvious one was the change to the image in the banner. ... What she did do was come up with a pretty cool image that became my banner image, and remained so for five years. ... In the image seen here (click on it to see a bigger version), there is a star in the upper left that has a broken bluish ring around it. ... The bright star in the ring is named Sher 25 (it's the star in the letter "A" in "Astronomy" in my new logo). ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Misconceptions

A system of colliding galaxy clusters, nicknamed the Musket Ball Cluster, has been discovered. In these images of the Musket Ball Cluster, the hot gas observed with Chandra is colored red, and the galaxies in the optical image from Hubble appear as mostly white and yellow. The location of the majority of the matter in the cluster (dominated by dark matter) is colored blue. ... X-ray: NASA/CXC/UCDavis/W.Dawson, et al.; Optical: NASA/STScI/UCDavis/W.Dawson, et al. ...

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• Hubble watches starsт?? clockwork motion in nearby galaxy | Astronomy.com
• Hubble discovers a fifth moon orbiting Pluto | Astronomy.com
• Hubble and the light-year | Astronomy.com

The 2dF QSO Redshift Survey (2QZ) . ... Before jumping into all the finer details of teh survey, a brief non-astronomer's guide to redshift surveys is available. ... The primary scientific aims of the QSO survey are: (1) to obtain the primordial fluctuation power spectrum out to COBE scales, (2) to determine the rate of QSO clustering evolution in the non-linear and linear regimes and hence obtain new limits on the value of and the bias parameter, (3) to apply a powerful geometric method to measure . ...

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... Recherche dans le site : . Ciel Espace, le magazine qui vous guide toujours plus loin . ... des pages consacr?йes ?а la publication de vos photos Mais c'est aussi une vraie communaut?й avec laquelle partager votre passion et nourrir votre curiosit?й. Accueil Hubble zoome sur la Lagune . ... Le t?йlescope spatial Hubble, qui f?кte ses 20 ans cette ann?йe , s'est offert l'une des plus belles n?йbuleuses du ciel : la Lagune . ... 02/03/2016 - De retour sur Terre apr?иs une ann?йe dans lтАЩespace . ...

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• Hubble : toujours plus loin dans l'Univers | Ciel et Espace
• Hubble : un num?йro sp?йcial c?йl?иbre ses 20 ans de d?йcouvertes | Ciel et
• Hubble, 25 ans d'images c?йlestes | Ciel et Espace

... 2014: . Discovery of two isolated lethargic dwarf galaxies in the Local Group neighborhood . We determined the distances for two dwarf galaxies, KK258 (M B =-10.3) and KKs3 (M B =-10.8), as 2.23 and 2.12Mpc, respectively, with an accuracy better than 4%. ... Catalogue of extragalactic distances . We have compiled a catalogue of estimates of extragalactic distances to galaxies, obtained independently of the redshift. ... The catalogue of extragalactic distances 2014, A , 570, A13 . ...

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• The GLORIA Project makes available to internet users 13 robotic telescopes in
• articles_olga_eng
• Catalog of the LV Galaxies