... Credit: NASA / JPL-Caltech / Univ. of Virginia Explanation: What has created a large dust ring around Saturn? At over 200 times the radius of Saturn and over 50 times the radius of Saturn's expansive E ring , the newly discovered dust ring is the largest planetary ring yet imaged. ... A leading hypothesis for its origin is impact material ejected from Saturn's moon Phoebe , which orbits right through the dust ring 's middle. ... Publications with keywords: dust - Saturn - Phoebe . ...

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When Apache starts, it connects to some port and address on the local machine and waits for incoming requests. By default, it listens to all addresses on the machine, and to the port as specified by the Port directive in the server configuration. ... There are two directives used to restrict or specify which addresses and ports Apache listens to. ... Listen can be used to make a single Apache server listen to more than one address and/or port. ... Syntax: Listen [ port | IP-address:port ] . ...

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... Attitude Data Files | ... Additional Information | Attitude data are arranged in 6 files. Every file contains the information corresponding to one calendar year. Every line of file consists of a set of attitude coefficients. Data format is ASCII. Format of a line (in FORTRAN specifications): . 1X,I5 - line number 1X,I4,1X,I2,1X,I2,1X,F7.3 - YYYY MM DD TS - interval beginning, UT 1X,F7.3 - TS - interval duration 5(1X,F) - A 1 , .. ... Download attitude data files: . ...

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... The initial descriptions of the FITS format provided a simplified method for describing the physical coordinate values of the image pixels, but deliberately did not specify any of the detailed conventions required to convey the complexities of actual image projections. ... They were CRPIX n for the reference pixel location on pixel axis n , CRVAL n for the coordinate value at that pixel, CDELT n for the increment at that pixel in the coordinate value, and CTYPE n for the type of coordinate. ...

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... comedi_data_write -- write single sample to channel . ... int comedi_data_write (comedi_t * device, unsigned int subdevice, unsigned int channel, unsigned int range, unsigned int aref, lsampl_t data); . Writes a single sample on the channel that is specified by the Comedi device device, the subdevice subdevice, and the channel channel. If appropriate, the device is configured to use range specification range and analog reference type aref. ... On sucess, comedi_data_write() returns 0. ...

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To proceed to drawing tracks of some objects select Tracks item in menu bar and then select Input Data in drop-down menu. Enter initial and final dates of time interval in corresponding data fields of the Input Data dialog box Input Data . ... The frame with horizontal and vertical scales corresponding to the right ascension and declination axes appears on screen. ... Depending on specifications introduced in the Input Data dialog box the picture represents tracks up to three different objects. ...

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. Figure 3. Dark dimmings and bright post-eruption arcades in solar sources of the severest FDs over the solar cycle 23 in SOHO/EIT 195 е fixed-base difference images. The FD magnitude of the strongest disturbances and the dates and time of their registration are specified in the upper right corner of each panel. The dates and time of EIT images subjected to the subtraction are specified at the bottom of each panel.

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... 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. ...

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... Right now, the world needs 10,000 additional radiotherapy machines to meet demand. ... The imaging and tracking (source finding) techniques being pioneered for Nano-X form part of an inter-disciplinary research program being developed through a CAASTRO collaboration currently involving Medical Physics and Astrophysics at Sydney and Curtin Universities, together with the Nelune Comprehensive Cancer Centre at Prince of Wales Hospital. ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Moon . ... Comets and Asteroids . ... What changed our view of Chariklo is the discovery of a ring system around it, the first such feature found around a Solar System body smaller than a gas giant planet. ... Almost certainly the rings were born when a collision with a smaller asteroid blasted millions of tonnes of debris off CharikloтАЩs surface. ... A ring system detected around the Centaur (10199) Chariklo (Braga-Rigas et al.) ...

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... Warped passages: Thursday 16 October 2008 . ... Catch a Falling Star: Thursday 9 October . A stronomy Ireland Colm J. Cannon Memorial lecture: " Searching for Planets Around Other Stars - From Galway " by Gregg Hallinan, at 8 pm, Monday 13 October, in the Physics Building, Trinity College Dublin. ... The techniques used to detect these planets requires the use of very sensitive and expensive equipment. ... Tuesday, 7 October 2008 23:23 . International Year of Astronomy, Ireland National Node . ...

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... The delightful images from the All Around Us slipcase are now in this fun, interactive format. By lifting the big, sturdy flaps, young readers will learn new words and concepts through Eric Carle's bright, beautiful images and simple phrases. A perfect companion title for Eric Carle's ABC and Opposites. Артикул: 1470_1114 Цвет: зеленый Состав: 50% вискоза, 45% полиэстер, 5% эластан Описание: стильный брючный комбинезон зеленого цвета без рукавов. ... Коллекция: Весна-лето 2016 . ...

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... On the equator (point C) the sun would always rise until it was overhead, while at the poles (A and B) it would always be on the horizon, going around the horizon once a day. ... Because everything is symmetric with respect to the line AB, the dark and light portions are always equal, and so are day and night, anywhere on Earth. ... Twice a year, the angle is as big as it can get, at the summer and winter solstices , when it reaches 23.5 degrees. ... That part of Earth enjoys summer . ...

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RTT150 . ... This search system is designed for generating the necessary information on series of pointings (observations of each source consist of sets of exposures with different filters and sometimes with different exposure times) for observed sources. Search results appear at the separate page as a table with the following data: . DATE - real (not evening!) observations date (in YYYY-MM-DD format); . ... Bin - minimal CCD binning mode (may vary during the observations); . ...

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Pulkovo NEO Page . ... EPOS Software Package . ... EPOS ( E phemeris P rogram for O bjects of the S olar system) is the Windows PC application for study and ephemeris support of observations of the Solar system objects. ... It controls the part of common data and transfers the control to one of the programs that solve the restricted set of tasks. ... So with the EPOS software package one can calculate the accurate ephemerides for many objects and get the quick illustration of their motion as well. ...

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... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Brief History of Rocket and Space Technology . ... ISS Russian Segment . ... Bus Module . ... creation of an additional docking port, enabling Russian manned and cargo transportation spacecraft to dock with and function within the space station; . ... On September 17, it was successfully docked with the nadir port on the ISS RS Service Module Zvezda . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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... Organized by the St Petersburg branch of the V.A. Steklov Mathematics Institute and the Euler Institute (St Petersburg), Laboratoire J.-V. Poncelet , Institute for Information Transmission Problems of the Russian Academy of Sciences ( Kharkevich Institute , Moscow), and the St Petersburg State University of Information Technologies, Mechanics and Optics ( University ITMO ). ... International workshop Optimization and stochastic methods for spatially distributed information . ...

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... Exposure Time Calculator (ETC) . ... Microstep (pattern) - a pattern of exposures at positions each shifted by a very small movement (<3 arcsec) from the reference position. ... A microstep pattern can be contained within each position of a jitter pattern. Jitter (pattern) - a pattern of exposures at positions each shifted by a small movement (<30 arcsec) from the reference position. ... Making a tile: Ysteps ; . ... Resulting Exposure time map for a filled tile of 6 pawprints (no jittering). ...

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... DIGITAL EDITIONS . ... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... All around Auriga . ... 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 . ...

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