... Using a simple 2-D Gaussian Point Spread Function (PSF) on a constant (flat) sky background, I derive a theoretical photometric and astrometric performance model for analytical and digital PSF-fitting stellar photometry. ... The photometric performance is maximized when either the effective background area or the effective-background-level measurement error is minimized. ... An important, but frequently ignored, noise source is the uncertainty of the measurement of the effective background level ( )...

... Кресла . ... Размер: XS . ... Цвет: белый . ... Размер шлица: PZ2 ; . ... Цвет: Фиолетовый . ... Глубина: 90 . ... Цвет: черный . ... Цвет: серый . ... Размер INT: 54 . ... Глубина пропила: 90, . ... Макс. глубина пропила под углом 90њ: 90, . ... Размер площадки: 800x550, . ...

Stellarium 0.12.3 . ... Renderer . FileљStructure . ... core . ... StelVertexAttribute.hpp . ... 53 љ inline int attributeDimensions( const AttributeType type) . ... 122 љ qDebug() << "Unknown vertex attribute type: \"" << typeStr . ... 179 љ // Ensure that every kind of vertex attribute is present at most once. 180 љ foreach ( const StelVertexAttribute & attribute, attributes) . ... 186 љ "Vertex type has more than one vertex position attribute" ); . ... 239 љ #define VERTEX_ATTRIBUTES(...)\ . ...

... Satellite data ] . SMIS ] . The program is designed to process the specific AVHRR instrument data for calculation and analysis of temperature fields on the sea surface and upper level of clouds. It performs brightness correction for visible channels with regards to clouds altitude. ... The program features a wide variety of classification algorithms (including two-dimensional histogram analysis) and enables to construct personal procedures for classification. ... Back to SMIS Home Page . ...

... MIPT Solid State Physics Department . ... Interacting Electrons in Normal Metals . ... The course is an introduction to interacting Fermi-particle physics and intended for future experimentalists. ... Hartree-Fock approximation. ... Linear reaction function. Calculation of density-density reaction function. Relation of density-density reaction function to compressibility of Fermi liquid and thermodynamic state density. ... Density-density reaction function of free Fermi gas in long-wave limit. ...

... Yu.A.Shokin Accurate positions of variable stars in the western part of the Large Magellanic Cloud bar (published in IBVS (No.5047, 14 March 2001) and SAI Proceedings) . B.S. Vozdvizhenskij The list of 2821 Venus positions (VINITI depository Oct 08 2007, N 956 B2007) . B.S. Vozdvizhenskij, E.N. Fedosseev The experience in processing long series of photographic observations of planetary positions (VINITI depository Apr 01 2008, N 274 B2007) . ...

... The SUB and SUP elements are used for subscripts and superscripts respectively, and are preferably rendered in reduced font. ... Some times you will want to place superscripts to the left of a term. ... For instance: X<sub align=right>a</sub> <sup align=left>b</sup>Y X<sub align=right>a</sub>Y<sup align=left>b</sup> b both render to X Y a while X<sub align=right>a</sub><sup align=left>b</sup>Y b renders to X Y a . ... The ID, LANG and CLASS attributes for SUB and SUP are not used within MATH...

... News . ... NASA's New Horizons to return to normal science operations after spacecraft anomaly . ... NASA s New Horizons mission is returning to normal science operations after a July 4 anomaly and remains on track for its July 14 flyby of Pluto. ... The investigation into the anomaly that caused New Horizons to enter safe mode has concluded that no hardware or software fault occurred on the spacecraft. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

Determination of short-term proper motions of fast stars with Pulkovo Normal Astrograph. ... Khovritchev Laboratory of Astrometry and Stellar Astronomy of the Pulkovo Observatory, RAS, Saint-Petersburg Observations Normal Astrograph (D/F=33 cm/3.5m), CCD camera: S2C, FOV = 18x16 arcmin, Pixel size 900x900 mas Determination of the new proper motions of 413 LSPM stars 1 epoch : CCD-surveys and catalogs -- M2000, CMC14, 2MASS, SDSS DR7 2 epoch : CCD-observations with the ...

... Positions in 2000 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2001 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2002 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2003 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2004 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . ...

Астрономия и Космос Небесные тела Планеты и их спутники . Видимым парадом планет называется планетная конфигурация, когда пять ярких планет Солнечной системы (Меркурий, Венера, Марс, Юпитер и Сатурн) в своем движении по небосводу подходят друг к другу на близкое расстояние и становятся видны в одно время в небольшом секторе (10 - 40 градусов) неба. ... Из выше описанного видно, что парад планет можно наблюдать, либо вечером, либо утром. ... Не пропустите ОСЕННИЙ ПАРАД планет 2002 года! ...

... Text algorithms, pattern matching, computationnal biology, comparative genomics . ... Ph.D. in Computer Science, October 1999. ... G. Navarro and M. Raffinot. ... A. Bergeron, C. Chauve, F. de Montgolfier and M. Raffinot. ... M. Habib and C. Paul and M. Raffinot. ... In Proceedings of the 15th Annual Symposium on Combinatorial Pattern Matching, number 3109 in Lecture Notes in Computer Science. Springer-Verlag, Berlin, 2004. ... In Theoretical Computer Science , 320(2-3), pages 955-418, 2004. ...

... Accelerating black holes, spin-2/3fields and C-metric . A TOPOLOGICAL EXTENSION OF GENERAL RELATIVITY TO EXPLORE THE NATURE OF QUANTUM SPACETIME, DARK ENERGY AND INFLATION . EFFECTIVE THEORY FOR QUANTUM GRAVITY . TESTS OF GENERAL RELATIVITY AND ALTERNATIVE THEORIES OF GRAVITY USING GRAVITATIONAL WAVE OBSERVATIONS . ... THE MASS OF THE OPPENHEIMER-SNYDER-BLACK HOLE: ONLY FINITE MASS QUASI-BLACK HOLES . ... NEUTRINO MASS AND THE STANDARD MODEL . Neutrino masses and flavor mixing . ...

... Bit . ... Status . Event Time . ... Bits . closed . ... Roof Position . ... automatic . ... 0D:18H:51M:32S . swmode=AUTOMATIC . Roof System . ... 18D:16H:51M:51S . OK SunAltOpen: -1.000000, SunAltClose: -1.000000, SunNow(Alt,Az): +65.769951,-168.421600 . Time of Last Reboot: 29 Days, 21h:28m:00s . Time of ObsDaemon Reboot: +2457458.4259953703731298 (uptime: 29 days, 21h:26m:24s) . ...

. Visitors of my Home Page: . љ . Back to Home Page . Personal information . Alexander Konovalenko alex.kono@mailcity.com

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... Calculate the likelihood, P ({xi }|µ ... generate a regular grid Instead, generate points with density propor tional to X ( ; {ai })d n d n F ( ) ( ; {ai }) 1 r F (xj ) j (21) Illustration I've reduced the 2-d Gaussian to two parameters for this illustration Direct search (log): 10 -2100 -2200 5 -2300 log- likelihood -2400 -2500 -2600 -5 -2700 -2800 1 1.5 2 Amplitude 2.5 3 0 1 Posterior sampling: x-position 0 -10 100 pixels in each direction so 104 evaluations of likelihood ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

Displays the current status of the Dual Imaging Spectrograph (DIS) and allows you to change the configuration. Normally only the most common status is displayed and the configuration controls are hidden. ... Pushing the "Config" button displays configuration controls (each to the right of its corresponding item of status). Select TUI:Save Window Positions to remember the state of this checkbutton. ... Turret : current position of the grating turret. ... Grating : name of the current grating. ...