... STScI-PRC99-19 HUBBLE FINDS VARIABLE STARS IN DISTANT SPIRAL GALAXY A NASA Hubble Space Telescope (HST) view of the magnificent spiral galaxy NGC 4603, the most distant galaxy in which a special class of pulsating stars called Cepheid variables have been found. It is associated with the Centaurus cluster, one of the most massive assemblages of galaxies in the nearby universe. ... Researchers found 36-50 Cepheids and used their observed properties to securely determine the distance to NGC 4603. ...

... Posts tagged ?variable selection? ... arXiv:stat.ME:0910.2585] . Variable Selection and Updating In Model-Based Discriminant Analysis for High Dimensional Data with Food Authenticity Applications . ... Entries RSS . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

This module provides the ability to set environment variables based upon attributes of the request. ... The mod_setenvif module allows you to set environment variables according to whether different aspects of the request match regular expressions you specify. ... BrowserMatch . ... Syntax: BrowserMatch regex env-variable [= value ] [ env-variable [= value ]] .. ... Module: mod_setenvif . ... The BrowserMatch directive defines environment variables based on the User-Agent HTTP request header field. ...

... Return to the Kernel page . ... This article is part of the LWN Porting Drivers to 2.6 series . The 2.6 kernel makes extensive use of per-CPU data - arrays containing one object for each processor on the system. Per-CPU variables are not suitable for every task, but, in situations where they can be used, they do offer a couple of advantages: . Per-CPU variables have fewer locking requirements since they are (normally) only accessed by a single processor. ... DEFINE_PER_CPU(type, name); . ...

Catalogue of eclipsing variables (CEV) is the world's principal database of eclipsing binary systems with available classification. CEV contains identifications, classifications, photometry, periods, eclipses data, spectral types, references and notes for 7179 systems. Format of the current CEV . CEV main table (~1.0MB) . ... List of systems, erroneously classified as eclipsing binaries in GCVS (they are not included in the CEV main table) Download all files as a single archive (~0.6MB) . ...

. На главную страницу НМУ . [ Postscript (20K) | Zipped postscript (8K) ] . Голоморфные функции и отображения. Феномен Хартогса. Оболочки голоморфности. Голоморфная выпуклость. Многообразия Штейна. Псевдовыпуклость и плюрисубгармоничность. Решение $\bar d$-уравнения по Хермандеру. Топология многообразий Штейна по Элиашбергу и Гомпфу.

. Spherical particles . Cylinders . Spheroids To the top . Created by V.I. Last modified: 12/08/03, V.I.

... This is a list of known variable stars near galaxies. ... IAUC 7482 . ... M31 . Nova M31 2008-11b . ... Nova M31 2008-08e . ... CBAT M31 page . ... IAUC 4059 . ... NGC 4013 . ... IAUC 6920 . ... PSN J12025798+0450397 . ... PSN J13343998-2340528 . ... MCG -2-37-6 . Galactic Variable . ... NGC 6340 . ... IAUC 8153 . ... Variable near UGC 10700 . ... Variable near MCG +07-36-33 . ... IAUC 7141 . ... NGC 6822 . Variable near NGC 6822 . ... IAUC 8141 . ...

... 2. (a) Metallicity function and relations between (b) metallicity and radial velocity, (c) metallicity and maximum distance from the Galactic plane,and (d)metallicity and variability period for RR Lyrae variables in the initial sample.The curve in the first graph is the maximum-likelihood approximation of the distribution using a sum of two normal curves with the indicated means,dispersions,and total numbers. ... next figure | privious figure . ...

Stellarium 0.12.3 . ... Classes . ... ClassљList . ClassљIndex . ClassљHierarchy . ClassљMembers . ... Variables . ... aggregatedLog : StelQGLGLSLShader . ... altitude : StelLocation . ... defautAngleForGravityText : StelProjector::StelProjectorParams . ... epoch : varstar . ... info : Planet::SharedPlanetGraphics , StelModuleMgr::PluginDescriptor . ... locked : StelQGLInterleavedArrayVertexBufferBackend , StelQGLArrayVertexBufferBackend . ... state : StelQGLGLSLShader , StelLocation . ...

... Редуктор фокуса CCD f/3.3/Field Flattener and Variable T-Adapter . ... Редуктор фокуса устанавливается на выходе оптической системы и применяется для уменьшения эквивалентного фокуса телескопа, при этом увеличивая общую светосилу. ... Данный редуктор используется при фотосъемке для уменьшения общей экспозиции на 80%. ... Зеркальные цифровые фотоаппараты PENTAX . ... Бинокли PENTAX и зрительные трубы PENTAX . ... Pentax.ru . ... Copyright PENTAR ї2004-2016. (бинокли, цифровые фотоаппараты, телескопы)...

... Parent Directory - aligned_stack.tif 2010-11-22 00:52 60M nikon_1286249461_ m15 _15s_12800iso.jpg 2010-10-04 23:31 6.7M nikon_1286424958_ m15 _15s_12800iso.jpg 2010-10-07 00:16 6.6M nikon_1287111986_ m15 _15s_12800iso.jpg 2010-10-14 23:07 6.8M nikon_1288583174_ m15 _15s_12800iso.jpg 2010-10-31 23:46 6.5M nikon_1289091740_ m15 _15s_12800iso.jpg 2010-11-08 16:26 6.6M nikon_1289091795_ m15 _15s_12800iso.jpg 2010-11-08 16:26 6.6M nikon_1289179791_ ...

... Tonight's Sky . ... The Magazine . News . Observing . ... Magazine . ... Star Atlas . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... variable stars . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

THE 75th NAME-LIST OF VARIABLE STARS. ... The 75th Name-List consists of two tables. ... the literature, taken from positional catalogues, including USNO A1.0/A2.0 and GSC, or determined by the authors); the range of variability (sometimes the column Min gives, in parentheses, the amplitude of light variation; the symbol ( means that the star , in minimum light, becomes fainter, than the magnitude indicated); and the system of magnitudes used ( P are photographic ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... General Accessories . ... Variable Projection Tele-Extender . ... The Meade 07348 Variable Projection Tele-Extender for LX Models requires the Meade 07182 eyepiece holder and offers different focal ratios while creating eyepiece-projection photography. ...

... Variable Star Observing . ... Thursday, Nov 13, 2014 at 8:00 PM . While taking deep-sky images or observing double stars through the eyepiece can be fulfilling, the universe is dynamic and constantly changing - never more obviously seen than with variable stars. ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Nov . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . Книга "Variable_Stars" G. Good . ... Поиск . Сообщения за день . ... Книга будет полезна наблюдателям переменных звезд и содержит как описание всевозможных типов ПЗ, так и методов их наблюдения. ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. ... Весенние созвездия (поиск и описание).. ...

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

Next: (Re-)Configurable Data File Writing At UKIRT . ... We needed a layer of software that would dissociate a data column (element) from any particular file. ... The library functions sort the input files by type, locate the required elements in those files and provide access to them in a time-correlated fashion. ... This data access layer is built on the concept of a data ``element''. ... When the input data is opened, the first file of each type is searched for the elements to be accessed. ...

... Based on the accurate radio position, GT 0236+610 was identified with LSI+61 303 (Gregory et al. , 1979[ 59 ]), a B0 star at a distance of 2 kpc (Frail and Hjellming, 1991[ 52 ]) with unusually broad, double-peaked, and variable and emission lines. ... The star wind velocity is estimated as  km s (Howarth, 1983[ 67 ]). ... The radio emission from LSI+61 303 exhibits non-thermal periodic outbursts of variable amplitude with a period of days (Taylor and Gregory, 1982, 1984[ 188 , 189 ]; Coe et al. ...