... Astrophysics Group . ... Exploring the Cosmic Dawn . ... Cosmic reionization corresponds to the epoch in which the first stars€а and black holes reionize the neutral intergalactic medium (IGM) that€аpervades the Universe following recombination, within a few hundred€аmillion years of the Big Bang. The epoch of reionization, and the€аpreceding ?dark ages? prior to the formation of the first stars,€аrepresent the last unexplored phases of cosmic evolution to be tested€аand explored. ...

It is highly recommended that you use Microsoft Internet Explorer v 4.0 and not Netscape, to access the applets. Lab B in Klamath B13 is reserved on Friday's from 2-4. ... If you are on a MAC and using Microsoft Internet Explorer v 4.0 you must select the Microsoft Virtual Machine under Options/JAVA in order for the applets to work. These experiments can be run at home, once the JAVA code has loaded into your browser you no longer have to be connected to the Internet for the experiment to run. ...

... Editing this wiki . ... Access keys (See also Wikipedia:access keys ) are keyboard shortcuts for tasks that would otherwise require a mouse click. ... Key Name . ... In this case one must edit the template file itself in order to change the access keys. ... The list of access key assignments in default PmWiki installations generally work throughout a site because links have been created in PmWiki skins and editing screens that incorporate access key parameters using the access key translation...

... Hughes STX/COSSC NASA/GSFC, Greenbelt, MD 20771 . ... The exploration of hypertextual data presentation at the COSSC was facilitated by the creation of tables of data, in electronic form, which describe the BATSE and EGRET datasets available in the Compton Observatory archive. ... As our store of data continues to grow, we will continue to explore new and novel ways in which hypertext allows the data in the COSSC archive to be presented and selected. 56 kB PostScript reprint . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Sky this Month . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Astronomers explore magnetar mega-flare . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine...

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...

... The first two working group reports (on Extrasolar Planets and the Herschel--ALMA Synergies) were released in 2005 and 2006, and this third report covers the area of Fundamental Cosmology. The Working Group's mandate was to concentrate on fundamental issues in cosmology, as exemplified by the following questions: . What are the essential questions in fundamental cosmology? ... What are the appropriate methods with which these key questions can be answered? ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . ... ITE, LLC . Russian-made telescopes, binoculars, and night vision equipment. Custom made Maksutov-Cassegrain, Klevtsov-Cassegrain and Maksutov-Newtonian Telescopes in light-weight Graphite tubes. Starlight Xpress CCD Cameras. ITE CCD Video Cameras. ... 800-699-0906 . ... Web Site . ... Web . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

Optical Observatories . ... National Optical Astronomy Observatories . ... Adam Mickiewicz University - Astronomical Observatory . ... Astronomical Institute and National Observatory of Athens . ... Jagiellonian University Astronomical Observatory - Scientific research here comprises radio and extragalactic astronomy, solar radio emission, active galactic nuclei, interstellar matter, galaxies, cosmology, variable stars and comets. ... National Radio Astronomy Observatory Home Page . ...

Основными факторами, под воздействием которых происходит эволюция системы планета (астероид) - спутник, являются: . ... Поэтому, если рассматривать эволюцию только одного спутника, доминирующим фактором, вызывающим изменение параметров орбиты спутника, будет приливное взаимодействие между спутником и планетой. ... Будет большая полуось орбиты увеличиваться или уменьшаться - зависит от соотношения между периодами вращения планеты и обращения спутника. ...

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