Since the light from galaxies represents the integrated contribution of its consitutient stars, then we can learn about stellar populations in galaxies by modelling their light by summing up individual stellar spectra for different kinds of stars. ... The data cover the wavelength range 3500 - 9000 angstroms. ... Retrieve Digital Stellar Spectra Click on the appropriate spectral type. ... Note that the designation V means main sequence, IV means subgiants, III means giants, I means supergiant. ...

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... Главная страница / Кометы и астероиды / "Нас не догонишь". Комета 217P/LINEAR, M42, M43, Бегущий Человек и пролетающие спутники. ... M42 , M43 , БегущийЧеловек , 217P/LINEAR . ... Комета C/2009 R1 (McNaught) . ... Все права на размещенные в галерее фотографии принадлежат их авторам. ... Киевский клуб любителей астрономии "Астрополис" . Движок галереи: 4images 1.7 ...

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... 2010 March 16 . Detailed View of a Solar Eclipse Corona . ... Explanation: Only in the fleeting darkness of a total solar eclipse is the light of the solar corona easily visible. Normally overwhelmed by the bright solar disk, the expansive corona , the sun's outer atmosphere , is an alluring sight. ... Pictured above , however, using multiple images and digital processing, is a detailed image of the Sun's corona taken during the 2008 August total solar eclipse from Mongolia . ... About APOD | ...

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• APOD: May 8, 1997 - Detailing Hale-Bopp
• APOD: 2007 February 27 - Atmospheres Detected on Two Extrasolar Planets
• APOD: 2013 September 16 - Rotating Moon from LRO

Планета Земля и Луна . ... Космическая защита . Луна . Фотографии . ... Строение Луны . ... Страница: Начало одиссеи , Экспедиции , Море Кризисов , "Аполлон-8" , "Аполлон-9" , "Аполлон-10" , "Аполлон - 11" , E-8 "Луноход" , Испытания Л-1 , Луноход - 1,2 , КА "Луна 1-24" , КА "Луна-9" , Луна от КА СССР ; . Луна - наш космический спутник . ... Снимки Луны от аппаратов серии Луна и Зонд (СССР) . Фотографии космических аппаратов серии "Луна" (также Луноходы) и "Зонд" - СССР . ... Зонд 3 . ...

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... News . ... Different faces of Pluto emerging in new images from New Horizons . ... These images, taken by New Horizons Long Range Reconnaissance Imager (LORRI), show four different faces of Pluto as it rotates about its axis with a period of 6.4 days. ... The date of each image, the distance of the New Horizons spacecraft from Pluto, and the number of days until Pluto closest approach are all indicated in the figure. ... Only registered members of Astronomy.com are allowed to comment on this article...

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• Reports detail Mars rover clues to atmosphereт??s past | Astronomy.com
• Pluto's complex terrain on display | Astronomy.com
• Scientists see solar outburst in exquisite detail | Astronomy.com

January 1998 One of the great unsolved problems in software development is the task of estmating time required for a software project. ... Rather than focusing on causes, or theoretical approaches, I herein offer a practical guide to improving time estimates for the worst-case scenario, the dreaded Five Minute Task . ... deal with the compile-time errors you failed to anticipate: . ... install software: . ... deal with installed software changes crashing all systems at random intervals: . ... test: . ...

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• The AstroStat Slog Blog Archive different views

... Packing Widgets . ... Because of this flexibility, packing boxes in GTK can be confusing at first. ... Each line contains one horizontal box (hbox) with several buttons. ... Each of the buttons is packed into the hbox the same way (i.e., same arguments to the gtk_box_pack_start() function). This is the declaration of the gtk_box_pack_start() function. void gtk_box_pack_start( GtkBox *box, GtkWidget *child, gboolean expand, gboolean fill, guint padding ); . ... Packing Demonstration Program ...

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• Apache mod_rewrite Technical Details - Apache HTTP Server
• Back-Illumination Paper-App
• Echelle Spectra

Next: E-P transitions for different Up: Evolution of Magnetic Rotators Previous: Mixing types of E-P-A . As mentioned earlier, the transition of the rotator from the ejector state to the propeller state is not symmetrical. ... One can see that in the case of a fast rotator, an interval of appears where three different values of are possible, the upper value corresponding to the ejector state and the bottom value to the propeller state; the intermediate value is unstable. ...

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• Discussion
• E-P transitions for different orbits
• The Scenario Machine: Operational Guide

... Abell 2218: A Galaxy Cluster Lens . ... The Milky Way in Infrared . ... Spiral Galaxy In Centaurus . ... The lovely Milky Way flows through this large constellation whose celestial wonders also include the closest star to the sun, Alpha Centauri, the largest globular star cluster in our galaxy, Omega Centauri, and the closest active galaxy, Centaurus A. A Lunar Eclipse Over Time . ... During last week's lunar eclipse, our Moon appeared to disappear. ... A Lunar Eclipse in Three Exposures . ...

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... Image at four different wavelengths of the scattered light from the TW Hya protoplanetary disk. The images come from the Hubble Space Telescope Instruments (upper left) STIS--visible, (upper right) NICMOS--1.1 micron, (lower left) NICMOS--1.7 micron, and (lower right) NICMOS--2.2 micron. The images are scaled by the distance in the disk from the star squared to highlight a gap observed halfway out in the disk. ... Scattered Light Images of Young Circumstellar Disks . ...

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• ACS Instrument Handbook
• Gauging the impact of executing science program across different COS/FUV
• Beginner's OOP and Java

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . If you are looking for the latest in our series... the slow precessors...its avaiable on the ADS, MNRAS 357, 579 , which includes aperture-convolved images. ... The details are below, but if you just want the movie collection...here it is. tracer . H2 1-0 S(1) movie . ... 1 degree precession . 1.8 Mb . ... Slow precession,pulsed . ... Slow precession, stream . ... 20 deg. fast precession . ...

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• Influence of Climate Variables on Tree-Ring Widths of Different Species
• Atmospheres
• Astronomy Festival: 12/13 February 2010, Galway | International Year of

... Directives | ... Apache HTTP Server Version 2.4 . Apache > HTTP Server > Documentation > Version 2.4 > Rewrite . ... This document discusses some of the technical details of mod_rewrite and URL matching. ... Then the URL rewriting engine is started with the contained ruleset (one or more rules together with their conditions). ... If the Pattern matches, mod_rewrite looks for corresponding rule conditions (RewriteCond directives, appearing immediately above the RewriteRule in the configuration). ...

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• Fasti Web Site
• research field
• APOD: 2000 June 21 - Solstice Celebration

The Sun is our nearest star and the source of energy for life on Earth. ... For centuries astronomers wondered whether they were clouds floating in the Sun's atmosphere, but we now know that they really are huge regions of magnetic field, about as intense as the field at the poles of an iron magnet. ... Such abrupt events were named solar flares , and what made them especially interesting was that occasionally, after a prominent flare, a magnetic storm would erupt on Earth. ...

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• DIGITAL WDC EXCHANGE FORMAT FOR OBSERVATORY 1.0 MINUTE VALUES
• The Acceleration of the Aurora
• The Wind Spacecraft

... Classes . ... casa . casa::ArrayNDimError . ... Thrown when two arrays have different dimensionality. More... #include < ArrayError.h > . ... ArrayNDimError ( Int dim1, Int dim2, const Char *m="ArrayNDimError", Category c=CONFORMANCE) . ... It is thrown when two arrays are non-conformant by virtue of having different dimensionality. ... Define the two (presumably different) messages and optionally supply a message. casa::ArrayNDimError::~ArrayNDimError . ... casa/Arrays/ ArrayError.h . ...

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• Summary List of Setup File Parameters
• casacore: casa::Minus< L, R, RES > Struct Template Reference
• casacore: casa::FFTEnums Class Reference

... Astrophysics Group . ... COAST Technical Details . ... The beam from each telescope passes through an aluminium tube, which serves to isolate it from the atmosphere, into the beam combining building. ... Inside the beam combining building the outer annulus of each light beam is separated and used in the acquisition and autoguider system. ... A simple algorithm is then used to detect the offset from the centre of the field, and this is corrected using piezo-driven mirrors at the back of the...

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• Supernova Remnant (SNR) Catalogue or Catalog of Galactic SNRs
• Astrophysics Group Pulsars
• Astrophysics Group Fringes and Power Spectra from COAST

... The Round Earth . ... Aristarchus around 270 BC derived the Moon's distance from the duration of a lunar eclipse (Hipparchus later found an independent method). ... Let R be the radius of that circle and T the time it takes the Moon to go around once, about one month. ... Viewed from Earth, a "new Moon" (occuring between the time a thin crescent is last seen before sunrise and the time one is seen shortly after sunset) happens when the Moon in its apparent motion around the sky overtakes the Sun. ...

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• "Stargazers" and National Science Standards
• The Sun
• OFO IKI / Digital aerial imaging systems

... A cyclic convolution of an input image weighted by gives output according to the following prescription: . ... The Fast Fourier Transform (FFT) algorithm used by the task works most efficiently if each dimension of the image is a multiple of 2, 3, 5 or 7. ... If the image is large and the number of convolvers small, this will generally be the FFT method; however direct convolution becomes more efficient if the image is divided into many small patches of different convolution. ...

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• Detailed Description

... Technique of supervision of solar atmosphere active formations with the Multichannel Flare Spectrograph. Consider in details now a method of observations of fast processes in solar chromosphere with Multichannel Flare Spectrograph (MFS) installed in Ondrejov Observatory (Czech Republic). ... The working spectral range lies between IR CaII 8542 A and K CaII 3870 A. To observe solar image on the spectrograph's slit a lens, narrow-band H-alpha filter (4) ("Daystar") and CCD-chamber are used. ...

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• Data bases of Natural Satellites. Documentation. Structure
• HSFA 2 technical description Technical Details

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

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... Since GCVS IV, there was no new GCVS edition. ... Main reasons for the automatic-survey new variables remaining outside the GCVS for a long time:  different level of detail of the classification systems, no perfect software for automatic classification available;  individual approach to each star that was always used in the GCVS cannot be applied any longer, but the experience of automatically- updated catalogs evidences for the number of errors ...

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