This composite shows the alignment of the satellite galaxies of Andromeda in relation to the view that we see from Earth (the top left panel shows a true-color image of the center of the Andromeda Galaxy taken with the CFH Telescope). New distance measurements allow us to ascertain the 3-D positions of the satellite galaxies, which together with new velocity measurements, reveal their true nature as part of a gigantic rotating structure (side view: bottom left panel; front view: top right panel). ...

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... This can be used to overlay the position of fiducial stars onto an image, for example. Positions can be input manually or from a list. To position marks interactively display the image and then cl> noao no> images im> tv tv> tvmark 1 STDIN interactive+ type . to put dot at cursor position type + to put cross at cursor position type c to put circle at cursor position (must specify hidden parameter ``radii'') <ctrl>d to exit . ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Moon . ... Space Flight . ... Science Fiction . UFOs and Fringe Science . Monthly Sky Notes . ... NASA's Cassini spacecraft obtained this image of Saturn's moon Helene on June 18, 2011. Image credit: NASA/JPL-Caltech/Space Science Institute) . ... Your email address will not be published. ... Email * . ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

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... Apparent Close Approaches of NEAs to the Stars for April 2016 Observatory 168 Kourovskaya 2016-Apr-01/18h24.9m/ Dist = 4.8 AV= 1.3 / min PA= 85.8° A= 50° h= 26° 1685 Toro RA= 8h07m57.634s Dec =+ 2°46'41.37 m= 16.0 UCAC2 32693651 RA= 8h07m57.649s Dec =+ 2°46'46.16 m= 15.1 2016-Apr-03/17h36.5m/ Dist = 10.0 AV= 5.3 / min PA= 53.5° A= 108° h= 24° 137170 1999 HF1 RA= 4h20m04.184s ...

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Stellarium 0.12.3 . ... Classes . ... ClassљList . ClassљIndex . ... Skybright Class Reference . Compute the luminance of the sky according to some parameters like sun moon position or time or altitude etc.. ... setDate (int year, int month, float moonPhase) . ... Set the moon and sun zenith angular distance (cosin given) and precompute what can be This function has to be called once before any call to getLuminance() More... љ . ... cos(angular distance between moon and the position) . ...

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... Masses are put in random positions within a sphere originally. ... RA (in radians) # Dec (in radians) ra = 2.0*math.pi* random () dec = math.acos(2.0* random ()- 1.0 )-0.5*math.pi return ra,dec def ranvec(): # Generates a randomly orientated unit vector. theta, phi = randomdirection() z = math.sin(phi) x = math.cos(phi)*math.sin(theta) y = math.cos(phi)*math.cos(theta) vec = numpy.array([x,y,z]) return vec # Stars interacting gravitationally # Program uses numpy arrays for high speed computations ...

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. Next: A/Z correction Up: Работа с программой Previous: Кнопки управления . Рисунок на панели Dome position отображает положение купола. Функциии кнопок, расположенных рядом с рисунком, описаны выше.

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... Киевский клуб любителей астрономии "Астрополис" > . ... Запорожский клуб АЛЬТАИР > . SUN: Apparent Geocentric Positions, astronomical script . ... Жизнь клуба . ... 05 Май 2006, 03:02:20 ? ... SUN Apparent Geocentric Positions . ... 2006 May 05 00h00m00s 2h 47m 38.744s +16* 09' 09.47" . 2006 May 06 00h00m00s 2h 51m 30.299s +16* 26' 14.04" . 2006 May 07 00h00m00s 2h 55m 22.396s +16* 43' 02.11" . ... 2006 May 05 00h00m00s 2h 47m 38.729s +16* 09' 09.43" . ...

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With this knowledge of orbits, we are ready to plan a trip to Mars. ... The spacecraft will already have the 107,000 kilometers per hour (66,500 miles per hour) speed of Earth, whereas Mars moves at only 86,900 kilometers per hour (53,900 miles per hour). ... A speed of about 42,000 kilometers per hour will be enough to escape the Earth's gravity and, when added to the Earth's orbital speed around the Sun, put the spacecraft on a Hohmann transfer orbit to the Red Planet. ... 1,570,000 . ... Earth . ...

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Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

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... Pre-university education . ... For the year Samara State Aerospace University moved up in the ranking of Vladimir Potanin Foundation from the 44th to the 10th place and added three positions in the ranking of universities reputation Expert RA in the field of Engineering, natural and exact sciences . Samara State Aerospace University has significantly improved its position in the ranking of universities of Vladimir Potanin Charitable Foundation at the end of academic year 2014-2015. ...

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... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...

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Astronomy Discussion Forums . ... I Think What You're Saying Is Not A Deeply-considered Position . ... Post Message | ... Posted by M.W.Pearson on October 16, 2002 19:36:09 UTC . ... I think there is more to it than dismissing Dr. Dick's position. ... http://www.astronomy.net/forums/god/messages/23110.shtml . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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... For this paper: postscript PPEUC CMB index 1 Introduction.. ... We report on a 16 ks X-ray observation with the ROSAT PSPC towards the center of a CMB decrement detected by Jones et al. (1997) in the direction of the quasar pair PC1643+4631 A & B. At the position of the decrement we find no evidence for emission by hot gas which could give rise to the Sunyaev-Zel'dovich effect. ... We conclude that the CMB decrement is not a typical galaxy cluster. ... 2 The ROSAT PSPC observation . ...

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Lab . Main page News People . ASA . Master . Master net Homepage . ... Lomonosov Moscow State University Sternberg Astronomical Institute . ... MASTER . ... Lomonosov (ShOK) . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . People, who work in lab . Latest news and news archive . ... Bright MASTER OT105123.02+672528.3 discovery at Optical/X-ray/radio source position ATel3845, ATel3849 ATel3889 . ... All news ...

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... Bad Astronomy . ... Bitesize Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Sun coming thru clouds forms beams of light (in dust in air?) ... Why does it look like that when the rays are supposed to be parallel and the sun 93M miles away? ... The rays really do appear to diverge: they are close together near the Sun, then spread out overhead. ... The rays as a set are parallel, but each ray is a little bit fan-shaped. ... 2008 Phil Plait. ...

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