... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

... Enjoying the bright Moon's absence from early morning skies, observers around the world reported lovely displays during this year's Perseid meteor shower. ... Chasing the brief flash of a meteor trail across the sky with a very large telescope is a nearly impossible task. ... A Perseid Meteor . ... The ongoing Perseid Meteor Shower should be at its strongest tonight and tomorrow night. ... Connecting the Pipe Nebula to the bright star Antares is a flowing dark cloud nicknamed the Dark River. ...

... 2009 March 1 . Omega Centauri: The Largest Nearby Globular Cluster . ... Explanation: This huge ball of stars predates our Sun. ... Of the 200 or so globular clusters that survive today, Omega Centauri is the largest, containing over ten million stars. ... Unlike many other globular clusters , the stars in Omega Centauri show several different ages and trace chemical abundances, indicating that the globular star cluster has a complex history over its 12 billion year age. ... About APOD | ...

... 2000 January 12 . NGC 6791: An Old, Large Open Cluster . ... Explanation: NGC 6791 is one of the oldest and largest open clusters of stars known. ... Open star cluster NGC 6791 , however, contains thousands of stars recently measured to be about 8 billion years old. ... This enigma makes NGC 6791, pictured above , one of the most studied open clusters and a possible example of how stars might evolve in the centers of galaxies. ... About APOD | ...

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

by virtue of its high galactic latitude (+51 deg), low HI column density (2.2 x 10^20), high declination (increased visibility from KPNO), low IRAS 100 micron cirrus emission , and the absence of many bright stars or nearby rich clusters. Click here to see an ascii table of the 256 J2000 Survey Grid Coordinates . To access our I-band images: Click Here! To access the cluster catalog: Click Here! ... 2-pt Corr. ... 2002 - 2005 Marc Postman Last Updated: 28 April 2005 . ...

... All previous such superstars have been found along with many companion stars in the centres of crowded star clusters. The star is known as VFTS 682 from the VLT-FLAMES Tarantula Survey catalogue of the European Southern Observatory's Very Large Telescope (VLT) located at Paranal in Chile by means of the attached FLAMES instrument. ... Although VFTS 682 seems to be alone now it is not very far away from a very rich star cluster known as RMC 136 that contains several similar superstars. ...

... Observing . ... Subscriber Extras . ... Web Extras . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Observing springtime deep-sky objects with a large telescope . ... Web Extra: Astronomers animate one of the largest galaxy clusters ever observed . ... At the center of the Phoenix Cluster, a large elliptical galaxy lurks where the hot gas is ejected, giving off unprecedented levels of X-rays, which have been observed by the orbiting Chandra X-ray telescope. ...

... The large field size of UIT is ideal for studies of globular clusters. ... Very metal poor clusters are conducive for the formation of very hot horizontal branch stars which radiate most of that energy in the UV part of the spectrum. ... M31 is the nearest large spiral galaxy to us. ... These are small dwarf galaxies and NGC 205 is a bit unusual because it still has retained some gas for star formation despite its low mass. M33 is an actively star forming spiral galaxy in the local group. ...

... Armagh Planetarium . ... Universe . ... Posted on April 19, 2012 | ... Continue Reading.. ... 2 Comments In the upcoming weeks you will be hearing in the news the words тАЬDragon SpacecraftтАЭ, so Sinead McNicholl has the full story on what exactly this new vehicle is and [ ] . ... Posted on March 29, 2012 | 3 Comments The month of April is fantastic month for stargazing and for astronomy in general with numerous dates to mark in your calendar. €аFrom Earth Day celebrated on 22 April, in [ ] . ...

... Research . ... A rare hybrid morphology radio galaxy . ... In this project we will be able to investigate the environmental effect on star formation and galaxy evolution in individual galaxies falling into the cluster through radio observations of active galactic nuclei (AGN). Current models of galaxy evolution regulate the star formation rates within the simulated galaxies by invoking radio-mode feedback from AGN. ... Julie.Banfield@anu.edu.au . ...

... Up: Surveys & Large Scale Data Management . ... The CoCat (Co-processor Catalogue) project main goal is to parallelize the VizieR large catalogue treatments (data extraction, cross-matching) for reducing the response time. ... Figure 2: The CoCat cluster. As the Sun server is becoming overloaded we decided to move the set of large catalogues to a Linux cluster (the CoCat cluster). ... The CoCat cluster involves one master node and five slave nodes (Fig 2 ). ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Next: Display of the results Up: How Pieflag works Previous: Step 3: Postprocessing to . When developing the flagging algorithms, it was found that often a few affected data points were not found during times with strong interference. ... An additional benefit of this procedure is that a larger safety margin is flagged around extended periods of bad data. ...

Общая Астрономическая Конференция > Форумы общей направленности > Любые вопросы от новичков . Supernovae - Microwave Background - Large-Scale clustering . ... Поиск . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. ... Double Cluster (Хи и Аш Персея (Chi & h Persei), NGC 869 и NGC 884) и скопления вокруг него Звездные ассоциации - астеризмы (поиск и описание) .. ...

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

... Catalog . Publications . ... Koposov, S., Glushkova, E., Zolotukhin, I. 2008: Automated search for Galactic star clusters in large multiband surveys. ... BibTeX entry ] . ... Glushkova, E.V., Zabolotskikh, M.V., Koposov, S.E., Spiridonova, O.I, Vlasyuk, V.V., Rastorguev, A. S. 2010: Photometry of the poorly studied galactic open star clusters King 13, King 18, King 19, King 20, NGC 136, and NGC 7245 , Astronomy Letters, 36, 75 . ...

... The Large Magellanic Cloud is a Dwarf Irregular galaxy in orbit around our own Milky Way. It is a large object, several degrees in size, and easily visible to the unaided eye in Southern Hemisphere skies. The LMC is located in the constellation of Doradus at about 5h30m Right Ascension, -68 degrees Declination, and lies at a distance of roughly 50 kiloparsecs (160,000 light years) from Earth. ...

You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

... 200 jet radii . ... bipolar simulation . initial density contrast 1/10,000 (jet/IGM) . ... Density films: (970 frames) . gif, 100MB] [MPEG IM, 5MB] . Density films: (97 frames) . gif, 10MB] [jpg, 0.9MB] [h363+, 0.9MB] [ISO MPEG4, 0.9MB] [pre MPEG4 v3, 0.9MB] [pre MPEG4 v2, 0.8MB] [real, 0.9MB] [gif, 1MB] [MPEG1, 0.9MB] [MPEG IM, 0.5MB] . ... Virtual Jets 2003 (Dogliani, Italy) [slides] [proceedings] . ... This page is maintained by Martin Krause ...

... Earth is the tiny spot between Jupiter and the Sun). ... Distance Radius Mass Name Orbits (000 km) (km) (kg) --------- ------- -------- ------- ------- Sun 697000 1.99e30 Jupiter Sun 778000 71492 1.90e27 Saturn Sun 1429000 60268 5.69e26 Uranus Sun 2870990 25559 8.69e25 * Neptune Sun 4504300 24764 1.02e26 * Earth Sun 149600 6378 5.98e24 Venus Sun 108200 6052 4.87e24 Mars Sun 227940 3398 6.42e23 Ganymede Jupiter 1070 2631 1.48e23 + Titan ... Extrema .. ...