... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

For Cycle 9 the Science Program Selection Office (SPSO) has changed the selection process to ensure that HST will continue to perform the best possible science with the best return for the astronomical community. This report summarizes the changes to the selection process and offers suggestions on writing an effective proposal that accounts for these changes. ... Fewer panels: With more orbits to allocate, each panel will have more flexibility, especially to approve the somewhat larger proposals. ...

... You are here: start €Ё difx €Ё difx-todolist-2011 . Trace: тАв difx-todolist-2011 . difx:difx-todolist-2011 . Cluster configuration file standard definition . ... Add large (~1 TB) dataset with variety of modes on Data Fabric (CR) . ... az/el in the calc file, + parallactic angle? ... Add per-IF phase polynomial in the calc file (and delay polynomial, too?) ... Documentation of mpifxcorr internals (buffers etc.) ... vex2difx to create an input file setup to be used with vlbi_fake . ...

The HyperNews Linux KHG Discussion Pages . Forum: The Linux Kernel Hackers' Guide . Keywords: KHG should reflect current changes in the linux kernel . ... I have read version 0.6 completely but so much has changed in the 1.3.xx kernels that for experienced linux kernel hackers KHG no longer is all that useful. I thinks this is high time we should do a complete overhaul of KHG so that it reflects current changes in the linux kernel especially in the areas such as memory management. ...

... Return to the Kernel page . ... Kernel . ... This article is part of the LWN Porting Drivers to 2.6 series . One might be tempted to think that the basic task of keeping track of the time would not change that much from one kernel to the next. ... One change which shouldn't be problematic for most code is the change in the internal clock rate on the x86 architecture. In previous kernels, HZ was 100; in 2.6 it has been bumped up to 1000. ... Driver porting: Timekeeping changes . ...

... Previous: Literature and Catalogs in Electronic Form: Questions, Ideas and an Example: the IBVS . ... Astronomers can use the ADS to maintain their publication lists; a simple http link can bring a current bibliography at any time. ... For example the following links to Martha Hazen's bibliography. http://adsabs.harvard.edu/cgi-bin/abs_connect?author=hazen,m. &aut_syn=YES&nr_to_return=all . ... To have a complete bibliography via ADS one needs but to add the missing articles into ADS. ...

... AstroGrid Registry . ... 1.DB client and WebDav . ... If you are using the recommended xml database eXist (which also is bundled up with the registry). ... Also it supports WebDav which allows you to connect various Applications like XMLSpy or Oxygen as well as your typical File Manager normally support WebDav meaning you can view the whole database just like any other network drive on your system. ... ex: http://software.astrogrid.org/schema/vo-resource-types/VOResource/v1.0/VOResource.xsd . ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE CHANGING UNIVERSE: EVOLUTION HAPPENS! . c) Changes in the Universe . ... In a universe that is not evolving, we should see as many of these hyper-active galaxy cores in each period of cosmic history. ... An Ancient Universe - Table of Contents . ... 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 | ...

... ID Comp Origin Type Prior DueDate Resp Status Description ---------------------------------------------------------------------------------------------- 0033 SEG MP/KH Action LOW 2001-05-04 GM Progress DFS MARCH2001 commissioning: Pipelines tests: check that recipes don't generate wrong results. 2001-03-23, gm: isaac tests ready, but documentation has to be updated uves tests ready, but documentation has to be updated fors1 test partially ready. ... To be tested for MARCH2001. ...

ARI USEFUL LINKS modified and/or upgraded by YP (Jul 1, 2015) . Astronomy . ... Astronomy related journals . ... Go to TOP . ADS ( UK , US or French site) . Abstracts from the major Astronomy journals. ... Astronomy Picture of the Day . ... Astronomy and Astrophysics (Bertout's site). status of a paper . ... of Stellar Spectra by R.O.Gray and VISUAL atlas (as pdf) . ... A list of Astronomy databases from the well organised canadian site. ... Astronomy jobs.../courses Go to TOP . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Posted on October 30, 2014 | 5 Comments Humans have been exploring mysterious lands and faraway civilizations for hundreds of years ever since they had the ability and knowledge to do so.€а A curiosity and a desire to [ ] . Continue Reading.. Posted on May 28, 2014 | ... 1 Comment Comets are frozen lumps of ice (often called volatiles) and rock that come from distant parts of our Solar System. ...

A full explanation of the motion of trapped particles would be too abstract and mathematical for this level, but some basic ideas may be described on an intuitive level. The magnetic force on a moving particle is always perpendicular to the motion, as well as to the magnetic field lines. That is why the basic pattern is motion in a circle, around a magnetic field line. ... The best-known periodic motion is the back-and-forth swing of a pendulum, say of a weight suspended by a string (drawing). ...

OptInt PmWiki . ... Tech Meet 2 . ... Page History | ... PmWiki . ... Return to Tech Meet 2 ( Edit ) . ... 1 pixel independent of pixel scale (avoids aliasing of high frequencies in speckled image) . ... ADR & CAH: Optical image quality tolerancing of OAP-based layout . ... ADR & CAH: Layout and tolerancing of lens-based optical system . ... ADR & CAH: Use tolerancing results to assign image quality and stability budgets by component . ... ADR & CAH: Think about how to apportion image quality budget . ...

Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...

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Hide Zen home . ... We realized original spatial algorithm for 2-dimensional data with spherical attributes in open-source database PostgreSQL, which allow us to work with terabyte-sized data. ... The total number of objects in our database is about 4 billions (10^9) objects. ... Large scale survey projects produce huge amount of data, which needs to be processed and organized in databases to provide access by astronomical community. ... Astronomy is the only science which has so many objects. ...

For the Australian ­ 7 June 2014 ­ Brian P Schmidt Along with Education and Infrastructure, Investing in Research and Development is the key way in which Governments invest in the long-term future prosperity of the country. ... This money is distributed to the higher education sector through a complicated set of government grants for research and student fees. ... In theory, deregulation of student fees will allow universities to differentiate on the type of education they provide. ...

... CfA Home . HCO Home . SAO Home . ... Welcome to CfA . CfA History . ... Laboratory Astrophysics . Extreme Astrophysics . ... 617) 495-7210 . ... 617) 495-7044 . ... 617) 495-7265 . ... HEA Research . ... HEA Home Page . CFA/HEA Home Page . ... High Energy Astrophysics Division (HEAD) . Chandra X-ray Center . ... Chandra Cluster Cosmology Project . Chandra Multiwavelength Project (ChaMP) . ... Chandra-Planck Clusters Project . ... CfA Virtual Observatory Project . ...

What's new at the DOP? ... What is in the database? ... i) original codes realizing different methods to calculate the optical properties of non-spherical (inhomogeneous) particles; . ii) reviews of exact and approximate methods of light scattering theory ; . iii) a database of several tausends references to papers on various aspects of light-scattering theory and its applications; . ... vi) a self-training algorithm of determination of the optical properties of fractal-like clusters; . ...