... CXC , NASA Explanation: What do you call a group of black holes ... a flock, a brace, a swarm? Monitoring a region around the center of our Galaxy , astronomers have indeed found evidence for a surprisingly large number of variable x-ray sources - likely black holes or neutron stars in binary star systems - swarming around the Milky Way's own central supermassive black hole. ... Publications with keywords: galaxy center - black hole - x-ray binary - Sgr A . ... The Black Hole in the Milky Way . ...

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... Astrophysics Group . ... Variability studies . ... The variability of radio sources at 151 MHz has been studied in detail using the CLFST , as part of the 7C survey. ... The 7C survey of radio sources at 151 MHz ? ... McGilchrist & Riley 1990 MNRAS, 246, 123 ; . ... From Green & Riley (1995), the 51P and 52P source lists at 408 MHz, plus the 53P and 54P source lists at 1420 MHz. From Riley & Green (1998), the 67P and 68P source lists at 408 MHz, plus the 69P and 70P source lists at 1420 MHz. ...

... Estimation of source coordinate time series from analysis of VLBI sessions. ... Conventions Cut-off elevation angle: 5є Terrestrial datum: NNR/NNT constraints to VTRF2008 stations without breaks (in total) For the sources : T L(2011) NNR Yes No s [ mas ] 2000 2000 Dip. ampl. [ mas /yr] 6.4 ±1.5 6.5 ±1.5 a (є) 263 ±11 263 ±11 d (є) -20 ±12 -23 ±12 Constraining each source to the ICRF2 position using very loose constraints (s=2as) is equivalent to apply loose NNR ...

... Space Research Institute . Main . ... Main results of the experimental and theoretical research completed in 2010 . ... Moon's topography is shown based on LOLA laser altimeter data, white contour shows a permanently shadowed region and a white rhomb indicates LCROSS spacecraft impact location. ... Ultra deep survey of the sky in hard X-rays, performed by INTEGRAL observatory . INTEGRAL observatory has completed the first and the most sensitive survey of the sky in hard X-ray energy band. ...

... We present new progress in our extensive pro ject mCPod (On­line database of photometric observations of magnetic CP stars), which was initiated five and a half years ago (Mikulґ et. al, 2007). ... The database consists of two parts, the Data and the References. In the References one finds the sources of data, the bibcodes including links to the corresponding papers, names of comparison and check stars (if available), the number of observations in individual filters (see Fig. ...

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

SEVENTEENTH CREW REQUIRED RESOURCES FOURTEENTH RUSSIAN VISITING CREW KAP PROJECT IMAGE VIDEO . ... EXPEDITION SIXTEEN (ISS-17) . ... During ISS-17, 182 sessions of 34 experiments are planned to be implemented. ... Breakdown of Experiments and Number of Sessions by Research Areas . Research Area . Experiment Name . Totally . ... Ascent to ISS RS: by Soyuz TMA-12 . ... ISS-17 Crew Commander S.A. Volkov (Russia) . ... RECORDING AND TRANSFER OF SCIENTIFIC DATA TO PRINCIPAL INVESTIGATORS . ...

... This year SSAU provides 1429 state-funded places for admission in all kinds and directions of educational programs. ... In addition, SSAU Admission Committee notes the substantial increase in interest from the foreign applicants this year. The number of applications from foreign countries has already surpassed last year's totals - 76 applications. Based on the experience of admission campaigns of previous years, SSAU expects summer 2014 to enrol about 150 foreign students in the university. ...

... Sun images . ... Sun flares . ... Active areas . September : 2015 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT . ...

Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... Telescope concept . ... The Submillimetron Project is dedicated to astronomical studies at the submillimeter and far infrared wavelengths using a cryogenic telescope located on the Russian segment of the International Space Station (ISS). The Astro Space Center of the Lebedev Institute of the Russian Academy of Sciences is responsible for developing the Submillimetron Project. ... Currently, the Astro Space Center is carrying out a pre-Project study under contract with the Russian Space Agency. ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

Stellarium 0.12.3 . ... Classes . ... FileљStructure . FileљList . FileљMembers . core . modules . Nebula.hpp . ... 51 љ virtual QString getInfoString ( const StelCore *core, const InfoStringGroup& flags) const ; . ... 54 љ virtual double getCloseViewFov ( const StelCore * core = NULL) const ; . 55 љ virtual float getVMagnitude ( const StelCore * core, bool withExtinction= false ) const ; . 56 љ virtual float getSelectPriority ( const StelCore * core) const ; . ...

... In this case the F5-F9 dwarfs turn out to be more metal-rich (by 0.1 in [Fe/H] ) thab G and K dwarfs, and the metallicity of the Hyades cluster turns out to be larger than the solar one [Fe/H] Hyades =+0.1 . ... При этом карлики F5-F9 оказываются богаче металлами, чем более поздние звезды, примерно на 0.1 по [Fe/H] , и металличность звезд Гиад относительно Солнца равна [Fe/H] Hyades =+0.1 . ...

Canberra Times 07/09/2009 Page: 6 Times Region: Canberra Circulation: 34354 Type: Australian Capital City Daily Size: 348.32 sq.cms MTWTFS- Page 1 of 2 back Does the universe contain an infinite number of Kevin Rudds? The year 2009 is the interTo mark the occasion, the Astronomical Society of Australia recruited a small group of media-friendly astronomers to national year of astronomy. distance between the light and its point of origin. ... And besides, how could you possibly test such an idea?" ...

Appendix: COODINATES OF OBSERVATORIES . This list is the extension of Marsden's list of observatories published in тАЬMinor Planet CirculariesтАЭ. ... тАЬThe Astronomical Year-Book for the year 1942тАЭ, 1941, p.355-360, in Russian . ... The numbers 0-999 were taken in according to Marsden (Ref.1), the numbers from 1000 were appropriated by us. ... For observatories with numbers 0-999 and code of reference 1* the heights were taken by maps . ... For numbers 0-999 the code equals 1 usually. ...

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... 2/3-m Telescope . ... Site . ... Commanding . ... In a typical robotic observing scenario, each afternoon, a telescope control computer obtains a set of objects to observe from its home institution from a command or script file. ... The file is then transferred to the telescope control computer at the Winer Observatory in Sonoita. ... The Iowa control computer then begins processing the telrun.sls file. ... 2013 Winer Observatory. ...

... The catalog contains SAO number; the right ascension and declination with a B1950.0 equinox and epoch; annual proper motion and its standard deviation, photographic and visual magnitudes; spectral type; references to sources; the Durchmusterung (DM) identifier if the star is listed in the Bonner DM (BD), Cordoba DM (CD), or Cape Photographic DM (CP); component identification; The Henry Draper (Extension) (HD or HDE) number; and J2000 positions and proper motions. ...