... The Pelican Nebula in Gas Dust and Stars . ... IC 5070, the official designation, is divided from the larger North America Nebula by a molecular cloud filled with dark dust . The Pelican, however, receives much study because it is a particularly active mix of star formation and evolving gas clouds. ... The light from young energetic stars is slowly transforming the cold gas to hot gas, with the advancing boundary between the two, known as an ionization front, visible in bright orange on the right. ...

Еще в разделе: (Показать все результаты (>145560) - www.astronet.ru/ )

• Journal "Peremennye Zvezdy"
• Circling a Black Hole at its Photon Sphere
• Pelican Nebula Ionization Front

... 2015 November 17 . The Pelican Nebula in Gas, Dust, and Stars . ... The light from young energetic stars is slowly transforming the cold gas to hot gas, with the advancing boundary between the two, known as an ionization front, visible in bright orange on the right. ... Millions of years from now this nebula might no longer be known as the Pelican , as the balance and placement of stars and gas will surely leave something that appears completely different. ... About APOD | ...

Еще в разделе: (Показать все результаты (>8400) - www.sai.msu.su/ )

• APOD: 2000 July 3 - Pelican Nebula Ionization Front
• APOD: 2013 July 2 - Circling a Black Hole at its Photon Sphere
• APOD: 2005 May 15 - On the Origin of Gold

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

Еще в разделе: (Показать все результаты (>288) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Misconceptions

... To be read in conjunction with Section 4.11 of the WFPC2 Instrument Handbook , -Version 4.0. ... 1 The second study found evidence that CTE loss for faint stars has increased with time (Whitmore, 1998). The primary observational consequence of CTE loss is that a point source at the top of the chip appears to be fainter than if observed at the bottom of the chip, due to the loss of electrons as the star is read out down the chip (see Figure 1 ). ... Last updated: 06/16/98 10:38:00 . ...

Еще в разделе: (Показать все результаты (>15784) - www.stsci.edu/ )

• Andy Fruchter's Homepage
• Making HST Pictures: Illustrations

... Each DFS Department official document has to be issued according to the following internal procedure. Documents to be distributed outside DMD division must also be issued according to the Technical Archive procedure . ... Several documents are also available as complete templates defined internally for DFS Department documentation (e.g. template for Test Plan, for Test Report, .. ... Define the internal document number as: dfs-volxx-yyy-zzzz . ... Document title, . ... Issue number (e.g. 1). ...

Еще в разделе: (Показать все результаты (>43805) - www.eso.org/ )

• ESO - The reduced science spectrum displayed in the Reflex window appears good
• Redshift Distribution
• Detailed procedure for issue of documentation

... Tonight's Sky . ... Sky this Month . ... Star Atlas . ... stars . ... The Sky This Week: April 1 - 10 . ... Observing springtime deep-sky objects with a large telescope . ... Why do some stars appear to flash a variety of different colors when you look at them through a telescope? ... So, Earthт??s atmosphere will bend some colors from especially bright stars more so than others, which makes the source look like itт??s flashing colors. Get instant access to subscriber content on Astronomy.com! ...

Еще в разделе: (Показать все результаты (>5997) - www.astronomy.com/ )

• How were the constellation boundaries set? They appear pretty arbitrary. |

... Posts tagged ?light curve? ... Posted by hlee . ... Tags: book , Brieman , cigar , Clinton , data mining , Friedman , Hastie , KDD , light curve , machine learning , SCMA , shaking hands , SN , statistical learning , Supernova , Tibshirani . Category: Algorithms , Cross-Cultural , High-Energy , Jargon , Methods , Quotes , Stat , Uncertainty | Comment . ... Click for what was appeared in arXiv this week. ... Category: arXiv , Data Processing , gamma-ray , Objects , Spectral , Timing , X-ray | ...

Еще в разделе: (Показать все результаты (>2335) - hea-www.harvard.edu/ )

• The AstroStat Slog incompleteness
• The AstroStat Slog GRB
• Appearance of new HRI `hotspots' in 1995-1997

OptInt PmWiki : Pm Wiki / Internationalizations . ... PmWiki supports internationalization (internationalisation) of web pages, allowing accented characters to appear in page names and almost complete customization of PmWiki's prompts. Most customization is provided via the XLPage() function in PmWiki, which loads a set of translation variables from a wiki page (typically named XLPage, but it can be named anything you wish). ... For example, to select French language prompts, one would specify . ...

Еще в разделе: (Показать все результаты (>1328) - www.mrao.cam.ac.uk/ )

• OptInt PmWiki : PmWiki / Fmt Page Name
• OptInt PmWiki : PmWiki / Access Keys

... The State that has the highest rate of usage of ethanol as an alternative fuel . ... The last time the Oregon Ducks beat UCLA in basketball . The participants and score of the 1980 Rose Bowl . ... An Image of Issac Newton . ... The second highest paid player in the NBA last season . ... A map of the dams that comprise the British Columbia Hydropower System . ... The current freeway traffic flow in Seattle Washington . An image of a 1966 Shelby (Mustang) . ... Dr DarkMatter's Home Page . ...

Еще в разделе: (Показать все результаты (>307) - zebu.uoregon.edu/ )

• Astronomy HyperText Book: Stellar Evolution

Next: Storage format Up: File Formats Required Previous: Column label: MOONALT . Information specific to a particular instrument is not so easy to categorize. ... Columns BAND and NBAND . Column FILTCODE_ n . Column NDVALUE . Column NDETUSED . Columns REDLEAK, RLTYPE, and MAKER . Instrument descriptors . ... Character descriptor FILTCAT . Character descriptor FILTSTAT . ... Columns NDET and DETNAME . Column DETCODE . Column DET . ... A simple photometer . ...

Еще в разделе: (Показать все результаты (>1683) - www.sao.ru/ )

• CCD Resources Jumpstation
• HyperLEDA documentation: catalogue of internal kinematics
• Terms Used to Describe Directives - Apache HTTP Server

... PmWiki . ... PmWiki FAQ . ... pmwiki.org . ... Go to new wiki . ... PmWiki supports internationalization (internationalisation) of web pages, allowing accented characters to appear in page names and almost complete customization of PmWiki 's prompts. ... Pages for many languages such as French, German, Dutch, and Spanish have already been created and maintained at the pmichaud.com site. ... php if (!defined('PmWiki')) exit(); ##change to French language XLPage('fr','PmWikiFr.XLPage'); . ...

Еще в разделе: (Показать все результаты (>18480) - www.atnf.csiro.au/ )

• The completeness and reliability of threshold and false-discovery-rate source
• VSOP Observing Schedule
• Pulsar Group PmWiki/Internationalizations

JSC Celebrates 40 Years of Human Space Flight . ... Scheduled for completion about 2006, the completed International Space Station will have a mass of about 1,040,000 pounds. ... The assembled space station will provide the first laboratory complex where gravity, a fundamental force on Earth, can be controlled for extended periods. ... Hospitals, business parks and solar electric power stations that beam clean, inexpensive energy back to Earth are likely to dot the "space-scape" 40 years from now. ...

Еще в разделе: (Показать все результаты (>3000) - www.jsc.nasa.gov/ )

... Since the fast mode window is necessarily small, the source PSF fills much of the window (clearly evident for bright sources). ... As such, the source and background extraction apertures may be truncated by the window. ... While often there will be only one object in the image, one should check for spurious detections which could affect the analysis of the target source and also for missed sources or prominent objects in the window, which may contaminate the target. ...

Еще в разделе: (Показать все результаты (>5426) - xmm.vilspa.esa.es/ )

• Using tasks
• A guided tour to the scheduling of an XMM-Newton revolution

... Here is my bug report. 0) Complete installation took about 200MB (not including swap file). ... Open IBM Works, select "New" Word Processor, type something, try to exit). 2) Truetype font rendering looks poor. ... No controls appear. ... 15) Install routines are very inconsistent between them - different look, different controls, etc. 16) Installation CD is also a mess; I suspect they are having great time coordinating pieces of software written by different people into one installation. ...

Еще в разделе: (Показать все результаты (>4803) - crydee.sai.msu.ru/ )

• Dynamic HTML in Communicator
• HTML Document Representation
• Generic routines

Summary of A. Skop enkov's prop osal This proposal concerns the classical Knotting Problem in topology: classify embeddings of a given space into another given space up to isotopy. ... The Knotting Problem is known to be hard. ... The Knotting Problem is most interesting for manifolds of dimension at most 4, because embeddings of such manifolds often appear in other branches of mathematics and its applications. ... For N not a homology sphere until 2005 no description of the orbits was known. ...

Еще в разделе: (Показать все результаты (>733) - www.mccme.ru/ )

• http://www.mccme.ru/dfc/2009/reports/2011-Oblezin.pdf
• http://www.mccme.ru/dfc/2012/Program2/guterman_summary.pdf
• http://www.mccme.ru/dfc/2009/reports/Oblezin2010.pdf

Each Apache configuration directive is described using a common format that looks like this: . ... This indicates the format of the directive as it would appear in a configuration file. This syntax is extremely directive-specific, and is described in detail in the directive's definition. ... If the directive has a default value ( i.e. , if you omit it from your configuration entirely, the Apache Web server will behave as though you set it to a particular value), it is described here. ...

Еще в разделе: (Показать все результаты (>97) - neptun.sai.msu.ru/ )

• How Directory, Location and Files sections work
• An In-Depth Discussion of Virtual Host Matching

... As a new Puerto Rican resident, you have a complicated tax status. The short answer for US citizens coming from the US is that you file 1040 claiming all your income for the year you moved, but with form(s) 1116 (credit for foreign tax paid) to reclaim the portion of your Federal tax attributable to income earned (and tax paid) in Puerto Rico. ... Form 1040 and Instructions. ... Publication 514 ``Foreign Tax Credit'', which contains the real instructions for form 1116. ...

Еще в разделе: (Показать все результаты (>2895) - www.naic.edu/ )

• HI Mass Function
• Useful Stuff
• I-GALFA View of a Galactic Tangent Region

... Schools . ... International programs . Summer Schools . ... On-line International courses with transferable academicљcredits . ... To complete the program there will be also excursions around Kharkiv region, which are connected with topics of the modules. ... V.љN.љKarazin Kharkiv National University isљaљfully accredited university inљKharkiv, Ukraine. ... V.љN.љKarazin Kharkiv National University mails official transcripts toљyour school ofљrecord upon the completion ofљthe program. ... APPLY . ...

Еще в разделе: (Показать все результаты (>797) - www.univer.kharkov.ua/ )

... Registration Form . Please complete and return this form (even if you sent the pre-registration form) . ... Odessa Astronomical observatory Telefax : 380 482 229442 . Park Shevchenko E-mail : astro@te.net.ua 270014, Odessa-14 (Ukraine) . NAME (to appear in the badge) :.. ... LaTeX template . ... begin{document} . begin{center} . ... end{center} . ... please insert a figure, if needed. % please name Your files as "Your_name1.pcx" rather than "Odessa1.pcx" . ... begin{figure}[h] . ...

Еще в разделе: (Показать все результаты (>679) - www.iki.rssi.ru/ )

• Overview
• The Sun's Corona
• Discovery of the Sunspot Cycle

... Pre-university education . ... Samara region . ... University at a glance . ... A group of young scientists of Samara University under the guidance of the candidate of chemical sciences Yevgeniy Aleksandrov began to make the most extensive database in the world for the structure and physical properties of crystalline coordination polymers. ... The idea of making a database for coordination polymers already exists in the scientific community of the world. ... SAMARA STATE AEROSPACE UNIVERSITY . ...

Еще в разделе: (Показать все результаты (>449) - www.ssau.ru/ )

• Dynamic tests of the scientific equipment 'Contact' have been completed in SSAU