... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1997/08 Japan (Kyoto, Nara) :: 17/08 Kyoto streets. Maruyama park . Up . << Prev . Dreaming about things on display. After checking, they appeared to be not that tasty compared to how they look. Next >> . Created with the tool album generator from David's MarginalHacks on Wed Jun 5 20:38:34 2013 .

... JPL , Caltech , NASA Explanation: Peering into a dusty nebula in nearby galaxy the Large Magellanic Cloud, infrared cameras on board the Spitzer Space Telescope recorded this detailed view of stellar nursery Henize 206 filled with newborn stars. ... Near the top, the sweeping telltale arcs of a supernova remnant are also visible, expanding debris from the final explosion of a massive star . ... Publications with keywords: star formation - supernova - LMC . ... Stars Forming in Serpens . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 March 19 . Breaking Distant Light . ... Explanation: In the distant universe, time appears to run slow. ... Above , the light from distant galaxies has been broken up into its constituent colors ( spectra ), allowing astronomers to measure the redshift of known spectral lines . ... About APOD | ...

... STScI-PRC01-04 HUBBLE'S ULTRAVIOLET VIEWS OF NEARBY GALAXIES YIELD CLUES TO EARLY UNIVERSE Astronomers are using these three NASA Hubble Space Telescope images to help tackle the question of why distant galaxies have such odd shapes, appearing markedly different from the typical elliptical and spiral galaxies seen in the nearby universe. ... Light from these galaxies travels great distances (billions of light-years) to reach Earth. ... These stars emit mostly ultraviolet light. ...

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

... It s caused by sunlight reflecting off dark cosmic dust in the Solar System. ... By combining the power of four very large telescopes into one super-telescope, astronomers have given themselves the ability to peer closely at almost 100 distant stars. And they discovered ghostly zodiacal light glowing around nine of them exactly as we see it in our own Solar System! ... In fact, out of almost 2000 planets that have been discovered around distant stars, only around 20 have been photographed! ...

EMBARGOED UNTIL: 9:20 AM CST, January 6, 1999 CONTACT: John Biretta Space Telecsope Science Institute, Baltimore, MD (Phone: (410) 338-4917; Internet: biretta@stsci.edu) HUBBLE DETECTS FASTER-THAN-LIGHT MOTION IN GALAXY M87 Astronomers reported today discovering clouds which appear to move many times faster than the speed of light, shooting out from the region of a black hole at the center of the M87 galaxy. ... It's an illusion created by the finite speed of light and rapid motion," Biretta said. ...

... They normally have 1 hz resolution. hp1: this is the LO for the rf to if1 mixing (1st lo) . hp2: this is used to generate the 2130 Mhz signal for the sband. 250 Mhz from downstairs gets added to this to generate 2380 Mhz which then drives the sband exciter. We own 3 of the hp32712 synths . ... To check our setup, we generated a birdie at 8446.231359 Mhz (with the hp83712 synth downstairs). ... hp83712 hp2 as sband synth . ... hp83712: downstairs, agc works, but only has KHz resolution . ...

The First Law (1): Energy is Conserved in a closed system: . ... We usually consider work and heat flow as the two kinds of energy . The Second Law (2): The Law of Entropy: . ... The amount of disorder increases . ... You can not go from a disordered system to an ordered system without inputting more energy (this is the most important attribute of the second law) . ... In no way can we recover work of that this disordered system without putting energy into the system. ... More on Thermodynamics . ...

General Information . ... Local Information . ... The city represents great cultural value because in the late 19th and early 20th centuries, Kislovodsk as a fashionable spa attracted many musicians, artists, and members of the Russian aristocracy. ... Double room with full pension (breakfast, lunch, dinner) - 2620 rubles per person per night. solnechniy . ... Citizens of most countries need visa to enter the Russian Federation. ... Victor Kornilov, Sternberg Astronomical Institute (chair) . ...

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... Meta Index / Home Page This section documents warnings and errors generated by this task (if any). Note that warnings and errors can also be generated in the SAS infrastructure libraries, in which case they would not be documented here. ... This error occurs when the data set does not appear to be empty. ... The number of input data sets to be merged exceeded the maximum number (currently set to 9). corrective action: Only the first 9 number of input sets are processed. noMatchingSources . ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... Astronomy for Kids . ... Can you explain Mercury's retrograde motion? Do other planets appear to do this also? ... When astronomers talk about retrograde motion, generally they refer to the apparent motion outer planets make as Earth passes them while orbiting the Sun. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE ANCIENT UNIVERSE . c) The Age of Light from the Most Distant Galaxies: The "Time Machine" Effect . ... Thus we are actually seeing these galaxies not as they are today, but as they were billions of years ago. ... The Universe: An Overview | ... 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 | ...

... Hurwitz groups and Hurwitz generation. ... English translation is to appear in St. Petersburg Math. ... J19 M. Vsemirnov. ... Notes of Scientific Seminars of St.Petersburg Division of Steklov Institute of Mathematics (POMI), 330 (2006), no. 1, pp. 101­130 (in Russian). English translation: J. Math. ... J4 M. A. Vsemirnov, The Macdonald identities and multidimensional theta-functions, Notes of Scientific Seminars of St.Petersburg Division of Steklov Institute of Mathematics (POMI), 240 (1997), pp. ...

Physicists have been honored by having their picture on currency in many countries around the world. ... Marie and Pierre Curie (Marie: 1867-1934, Pierre: 1859-1906) appear on the French 500 franc note. ... The greatest physicist of this century, Einstein not only invented the theories of special relativity (behavior of rapidly moving object) and general relativity (theory of gravitation), but made fundamental contributions to the beginnings of quantum theory. ... For a bio, click here . ... 100 K) . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Earth Satellites . ... Leonid meteors seen from 13 km altitude aboard an aircraft during the 1999 Leonids Multi-Instrument Aircraft Campaign (Leonid-MAC). Comet Tempel-Tuttle provides the cometary debris for the Leonid meteor shower. ... Every 17-19 November Earth crosses Tempel-TuttleтАЩs orbit and the Leonids become visible. With clear, dark skies observers may see 10 to 15 Leonid meteors every hour on those mornings. ...

... To plot the radial profile generated in the previous section: . ... To add error bars to above graph, the error bars must be generated then overlaid on existing graph. xp> pltpar # puts plot parameter file in editor. move cursor to ``erraxis'', type 2 type ctrl x to exit editor (for emacs, ctrl d for vi) xp> epar tabplot move cursor to ``errcolumn'', type err/pix type ctrl x to exit editor (for emacs, ctrl d for vi) xp> tabplot ``snr_cnt rad1 cnt/pix'' append=yes # overlays data and error bars . ...

... Opening times 7 pm - 9 pm Digital Theatre Show 7.30 pm (Suitable for family groups) Booking is Essential Tel: 028 3752 3689 Armagh Planetarium is open from Mon 29th Oct Sat 3rd Nov 2007 Daily opening hours: 11.30am-5.00pm For further information and a list of show times visit www.armaghplanet.com Booking is Essential Tel: 028 3752 3689 Prices Adults 6.00 per show Children (under 16) / Senior Citizens (65 yrs +) 5.00 per Last Revised: 2007 October 29th . ...