. Next: Image Region of Interest Up: Image Data Concepts Previous: Image Datasets . Miriad correctly handles a variety of image coordinate systems (the mapping between pixel and physical coordinates) in a correct fashion. The coordinates (and their description within the dataset) are treated in a fashion similar to AIPS (see Eric Greisen's AIPS memo No. 27, `` Non-linear coordinate systems in AIPS '' ). Miriad manager . 2015-09-14

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• News from Down-under 2003
• The Joint Approach
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... Space Flight . ... The Future . ... Just as the colour and style of a police officerтАЩs uniform may vary depending on their nationality or current circumstances, so the same can be said of the different spacesuits that men and women have worn to head into space. ... Slung-shot far above the 100km mark, Alan Shepard, the first American astronaut to enter space wore the Mercury Program spacesuit in May 1961. ... So finally to return to our opening question, spacesuits, fashion or function? ...

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... Posts tagged ?simulated annealing? ... Overall, I thought it would be worth to learn more about the history of MCMC and this paper was up in arxiv: Continue reading ?A History of Markov Chain Monte Carlo? Tags: BUGS , data augmentation , EM , Gibbs sampling , Hasting , history , Metropolis , reversible jump , simulated annealing . Category: Algorithms , arXiv , Bad AstroStat , Bayesian , Cross-Cultural , Data Processing , Imaging , MC , MCMC , Methods , Quotes , Stat | 2 Comments . ...

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Next: Allocating disk space Up: Using Disks and Other Previous: Other tools for the . Not all disks or partitions are used as filesystems. ... Many floppies are used in a tape-drive emulating fashion, so that a tar   or other file is written directly on the raw disk, without a filesystem. ... It also makes the disks more easily compatible with other systems: for example, the tar   file format is the same on all systems, while filesystems are different on most systems. ... 2880+0 records in . ...

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... The RA and Dec coordinates are computed using the pointing direction of the OM camera as the origin, and because the RA and Dec coordinates of this point may not be exactly the same as the coordinates deduced from reference to a catalogue (differences of a few arcsecs in RA and Dec are typical), omsrclistcomb (in a similar fashion to omatt ) allows the user to determine these shifts and correct the source positions. ... Successful Astrometry Correction . Unsuccessful Astrometry Correction . ...

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• Photometry
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Глава 3. ... Глубинная дифференциация вещества . В предыдущей главе мы выяснили, что все небесные тела Солнечной системы не являются неизменными на протяжении миллиардов лет, как полагают многие астрономы и небесные механики. ... Итак, первым рабочим веществом в планетной геологической эволюции, по нашему предположению, является углекислота, которая вследствие этого играет в развитии небесных тел великую роль в процессе глубинной дифференциации вещества. ... Происхождение материков и океанов . ...

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• Происхождение и развитие солнечной системы. Глава 2. УВЕЛИЧЕНИЕ НЕБЕСНЫХ ТЕЛ.
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... We discuss our experiences in building a Java interface to the SkyView virtual observatory. We describe the reasons we choose Java, the problems we encountered, and how we feel this language may be used in the future for Web and stand-alone applications. ... There is also a batch interface, where users who have installed some minimal software (a pair of Perl scripts) on their machines may make a request for a SkyView image from the command line of their local computer. ... blinking of images, . ...

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... Astronomy 101 . ... X-ray concept inspired from a roll of ScotchТ? tape . ... Principal nvestigator Maxim Markevitch is using R funding to pursue the feasibility of fashioning a low-cost X-ray mirror from plastic tape and tightly rolling it like the sticky adhesive ubiquitous in most homes and offices. ... The inspiration behind NASA scientist Maxim Markevitch's quest to build a highly specialized X-ray mirror using a never-before-tried technique comes from an unusual source: a roll of ScotchТ? tape...

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Many entry fields permit sexagesimal entry (h:m:s.s or :':"). ... Sexagesimal entry is flexible in that you can specify one to three fields, as you desire. ... Position entry widgets assume that a single field is decimal hours or degrees (h.h or . ... You may specify one to three fields: . ... Note: sexagesimal offsets and durations are entered in the same fashion, but a single field is decimal arc-seconds or seconds ('.' or s.s) and two fields are (arc) minutes and seconds (':"." or m:s.s). ...

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... 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. ...

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An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ... Astronomers can also determine the speed a galaxy is moving by breaking up its light into its component colors, rainbow-fashion. ... This pattern is now called "the expanding universe", since the entire universe of galaxies seems to be moving away. ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

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• ASP: An Ancient Universe - Changes in Stars
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... Bad Astronomy . Misconceptions . ... Bad Astronomy : The zodiac contains 12 constellations. ... A couple of things not noted at that site: if Ophiuchus occupies more of the ecliptic than Scorpius, why is it not in the astrological zodiac instead of Scorpius? Most likely, it's because Ophiuchus is not a particularly bright constellation, while Scorpius is a very bright, vivid group of stars that really does look like a scorpion. ... Also, the goat is Capricornus , not Capricorn . ...

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• Phil Plait's Bad Astronomy: Bad Movies
• Phil Plait's Bad Astronomy: Bad News
• Phil Plait's Bad Astronomy: Misconceptions: Disharmonious Noncordance

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit?йs . ... les plus belles images de l'Univers d?йcrypt?йes pour vous . ... des pages consacr?йes ?а la publication de vos photos Mais c'est aussi une vraie communaut?й avec laquelle partager votre passion et nourrir votre curiosit?й. Accueil ?А la une Pluton, la porte du royaume des glaces . ... Pluton, la porte des glaces . ... 16/12/2014 - R?йv?йlations sur l'origine de la vie . ...

176. Astrophysics Group Fringes and Power Spectra from COAST

177. Dynamically configured mass virtual hosting