These are very prominent absorption lines is most all galaxies. ... These pair of absorption lines will appear in all the spectra and they should be your principle source for determining the redshift. ... When this applet opens you will see an iconic representation of galaxies in the left hand side of the applet and a target area in the right side of the applet. ... Note: What you are doing in this excercise is identical to what Hubble did in the 1920's and you are using the same galaxies. ...

... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...

Welcome to K -corrections calculator, simple service allowing one to determine K -corrections of a galaxy, given its redshift and one or more colours. ... K -correction in choose filter.. ... Redshift . Colour choose colour.. Colour value . Calculator . ... calculate spectral energy distributions , K-corrections calculator , GALEX FUV NUV , UKIDSS YJHK , K-corrections of galaxies , spectral based k-corrections , SDSS filter set K-corrections , K correction code IDL , kcorrect IDL C , . ...

Parameter Estimation Astro 193, Feb.25 Non-linear Models · Define 2 and determine the best-fit parameters · No simple analytical solution · Involves iterative minimization of 2 Methods · · · · Levenberg-Marquardt Gradient methods Simplex Monte Carlo Comparison of the Methods Levenberg-Marquardt · Calculates derivatives of a statistics function over the parameter space of the function . ... Niter = 7 Comparison of the Methods Simplex Intercept vs. ...

... Since founding of the Olympiad] The Olympiad participants are not supposed to study at any institutions of higher education (university or school which can be considered technical colleges). ... Note: Exception may be done for the second time participating in IAOs students not older than 14.00 years on January 1st of the year of the Olympiad (i.e. born after January 01, 1999). ... Team of region, city, town: . ... of the XVIII International Astronomy Olympiad (2013), . ...

The ESA/ESO Astronomy Exercise Series 2 . The Distance to Messier 100 as Determined by Cepheid Variable Stars . ... The small variations in distance to the individual Cepheid variable stars in the Cloud are negligible compared with the much larger distance to the SMC. ... In this way Cepheid variable stars can be used as one of the 'standard candles' in the Universe that act either as distance indicators themselves or can be used to calibrate (or set the zero point for) other distance indicators. ...

The Ministry of Education and Science of the Russian Federation Samara State Aerospace University (National Research University) CONCEPTUAL AIRCRAFT DESIGN Term Project Guideline SAMARA 2011 629. ... THE PROJECT CONTENT, VOLUME AND SUBJECTS The term project "Conceptual airplane design" is carried out according to curriculum for MSc of the specialty 160100 "Aircraft construction" and Msc program "The airframe design and CALS-technologies" developed and implemented in SSAU. ... Airplane design /S.. ...

God Science Forum Message . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... SCIENTIFIC PROOF OF GOD'S EXISTENCE . ... Atheism is incompatible with the view of the universe, presented by modern science, since the intrinsic abstract and conceptual nature of the laws ruling the universe, implies the existence of a personal God. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... All rights reserved Printed in Great Britain 0273-l 177/00 $20.00 + 0.00 PII: SO273-1177(99)01221-I ELECTRIC FIELD DISTURBANCE IN THE EARTH - IONOSPHERE LAYER V. M. Sorokin , and A. K. Yaschenko Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation RAS (IZMlRAN), Troitsk, Moscow region, 142092, Russia ABSTRACT Theoretical studies of the electric field disturbance due to a variation of the atmospheric current, flowing between ionosphere and the Earth, are carried out. ...

... On the basis of hypothesis about Solar s ystem formating from endo-Galactic Vortex, stated by е.л. Trunaev, who have acquainted the author of the present work with his manuscript in 1991 during personal contact , the results of attempt to apply its main rules to some calculations at the Solar system actually and at planets satellite systems are below stated. ... orbit in . ... All satellite systems of planets, as well as the Solar system, are formed from two- branch pre-planetary (pre-Solar)...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... We discuss the diagnostic potential of high cadence ultraviolet spectral data when transient ionization is considered. ... The ionization fraction of the transition region ion O v and in particular the contribution function for the O v 1371 line are computed within the Atomic Data and Analysis Structure, which is a collection of fundamental and derived atomic data and codes which manipulate them. ...

... But after its orbit was better determined it was clear that it was not a comet but more like a small planet. ... M ore than 7000 asteroids have been discovered. ... There are 26 known asteroids larger than 200 km in diameter. ... But we know very few of the smaller ones; perhaps as many as a million 1 km sized asteroids may exist. ... T he largest asteroid by far is 1 Ceres . ... The NEAR spacecraft will orbit the near-Earth asteroid 433 Eros giving our first in-depth information about an asteroid.....

... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...

Comparison between closure phase and phase referenced interferometric image reconstructions Nuno Gomes 1 2 3 4 5 6 1, 2, 3 ґ ґ , Paulo J. V. Garcia , Eric Thiebaut , Stephanie Renard , Mercedes Filho 2, 4 ... da Universidade do Porto (CAUP), Rua das Estrelas, 4150-762 Porto, Portugal i ABSTRACT We compare the quality of interferometric image reconstructions for two different sets of data : square of the visibility plus closure ... The "Reference" column refer to the synthetic image. ...

... Contact A Problem of an estimation of accuracy of the asteroid CCD observations . The Minor Planet Center supported by the Interntional Astronomical Union is the main office for keeping observational data of the small Solar System bodies and their investigations. ... At Pulkovo Observatory we are estimating an accuracy of the CCD asteroid observations obtained by amateurs and professional astronomers all over the World using the MPC database. ...

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 ...

This module provides for the generation of Expires HTTP headers according to user-specified criteria. ... This module controls the setting of the Expires HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... ExpiresByType . ExpiresDefault . The ExpiresDefault and ExpiresByType directives can also be defined in a more readable syntax of the form: . ... Module: mod_expires . ...

Peremennye Zvezdy ( Variable Stars ) 26 , No. ... CCD photometry is presented for two type Ia supernovae 2000E and 2001V, for SN Ib 2001B and SN II-P 2001X. The parameters of light curves and absolute magnitudes at maximum light are estimated. ... CCD photometry of this SN was reported by Vinko et al. (2001) and Valentini et al. ... The light curves of SN 2000E, showing our photometry (circles) and that of Vinko et al. (2001) (dots) and Valentini et al. (2003) (crosses). ... 0.06 . M30, 2001 . ...

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.) ...

Hide Zen home . ... Index . ... Do we really need them for database indexing ? ... We need simple numbering scheme, so that for any given point we could easily calculate the number of "pixel", this is what HealPix provides and lacks HTM. ... During Rtree queries the number of index blocks read is several times greater than during Q3C queries. ... But in Q3C scheme, as we showed before, the circle is segmented, so we extract from the database only a few percents more data than occur in the circle. ...