... ON THE ROLE OF LARGE-SCALE PLASMA IRREGULARITIES AT THE FINAL STAGE OF ANOMALOUS ABSOPTION DEVELOPING UNDER HF HEATING OF THE IONOSPHERE . ... Fig. ... With the aid of numerical statistical modeling based on multiple ray tracing it is shown that in presence of large-scale irregularities the reflected signal amplitude mean value is increased significantly. ... Dependence of the mean amplitude of the reflected from the ionosphere signal on the large-scale (10-50 km) electron density irregularity level...

... arXiv.org . ... Here we present and analyse the properties of an updated sample of 37 ULP Cepheids observed in galaxies within a very large metallicity range of 12+log(O/H) from ~7.2 to 9.2 dex. ... The Origin of Color Gradients in Early-Type Systems and Their Compactness at High-z . ... Multiwavelength Observations of Markarian 421 in 2005 - 2006 . ... In addition to this, the well-sampled spectral energy distribution of Markarian 421 (1101+384) is presented for three different activity levels. ...

ALBUM: time .to.turn Album: Time to Turn Artist: Eloy @ SONG : Through A Somber Galaxy on my voyage through vast space towards the heart of brilliancy, I must cope with the unknow face of a somber galaxy this universe, seemingly vacant and dead; shapeless and black as the night, appears all the same full of life , immensly rich limited by human sense, I can only ...

... An ionospheric trough is a region of decreased F layer plasma density. ... It is quite typical to make a distinction between the sub-auroral troughs at mid-latitudes, and high-latitude troughs within the auroral region or polar cap . ... working for mid-latitude trough and some types of high-latitude troughs, like the polar hole . ... Collis, P. N., and I. HДggstrЖm, Plasma convection and auroral precipitation processes associated with the main ionospheric trough at high latitudes, J. atmos. terr. ...

... 12, 2015 Abell 2666 MAC 2348+2647 Sep 12 2007 31 Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Peg Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy ... 12, 2015 Abell 2666 MAC 2353+2713 Sep 12 2007 31" Peg Peg Peg Peg Peg Peg Peg Peg Galaxy Galaxy SB? ...

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

... Meade Instruments Corporation . ... Refracting telescopes (Meade Models NG-60, NGC-60, DS-2070AT, ETX-70AT, LXD55-AR5, LX55-AR6 ) and mirror-lens telescopes ( ETX-90AT, 105AT, 125AT, LXD55-SC8, 8LX90, LX200 GPS Series ) are generally more versatile in a wide array of land and astronomical applications. ... The intermediate-level observer, or the non-casual telescope user who wishes to purchase one telescope for a lifetime, should consider a Meade Model LXD55 series, 8LX90, or LX200GPS. ... Meade 4M ...

... Astronomy in Ukraine Past, Present, and Future (MAO-2014) . ... Erik Hog (Niels Bohr Institute, Copenhagen, Denmark) Absolute astrometry in the next 50 years Abstract . ... In brief, the two Gaia-like missions would provide an astrometric foundation for all branches of astronomy from the solar system and stellar systems to compact galaxies, quasars and dark matter (DM) by data which cannot be surpassed the next 50 years. ... Is there any future for the ground based astrometry technique now? ...

... R-band images obtained at 0.8 arcsec seeing conditions have allowed us to separate foreground star from point-like extragalactic source and estimate their brightness separately. ... To study the nature and properties of the source, we observed it under high spatial resolution. ... CONCLUSION RTT150 optical observations with sub-arcsecond seeing and low resolution spectra confirm the hypothesis of superposition of a radio source onto a `normal' F/G galactic star proposed by [1]. ...

The coordinates, diameters, altitudes and morphological features of all the craters of Mars exceeding 10 km in diameter, totaling 19 308, are compiled. ... The catalogue is intended for use by investigators of Mars, students, in comparative planetology and in the selection of craters for naming. ... 1 one terrace . 2 many terraces . ... 6 many hills and one ridge . 7 one hill and many ridges . ... 1 one crater . 2 many craters . ... Sample craters of different morphological categories . ...

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 , . ...

The AstroGuide . ... AstroGuide | ... Photography | ... AstroGuide Listing . ... This listing's details have proven difficult to confirm. See many more Astronomy Listings by: Category or Alphabet . You will find 35mm slides, 8x10 and 16x20 astronomy images for sale here. ... Listed Since July 15, 1998 . ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... This file table3 82 660 Observed wavelengths, laboratory values and identifications -------------------------------------------------------------------------------- Byte-by-byte Description ... Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- SpOrd Spectrum order 5- 12 F8.3 0.1nm SolLam Wavelength determination of all solar and telluric lines measurable on the ... Note (6): J: Junkes et al., ...

Andromeda Nebula. In the XVIII century the great English astronomer William Gershel included this galaxy into the observed stars congestions. ... What is this nebula interested for? It is a great spiral galaxy 1,5 times more than our galaxy - The Milky Way. The Milky Way and Andromeda Nebula are the greatest objects of the local group of galaxies. ... Andromeda Nebula is not the nearest galaxy to ours but its structure looks like the structure of our Galaxy. ...

... From the chain visibility point of view, it is very recommended to look at the Javascript movies , especially if the frame rate can be not regulated in your MPEG player. ... The non-CH-associated large-scale chains visible on the SOHO/EIT images at three wavelengths of 171, 195 and 284 as well as on the MLSO/HAO He I 10830 spectroheliogram of December 16, 1997. ... The SOHO/EIT movies at 171 and 195 show the chain dynamics on June 1-3, 1998. ... Javascript movie (230 KB), SOHO/EIT, 171 . ...

... Column Fmt Description ---------------------------------------------------------------------- 1 A1 Blank 2- 5 I4 Year (19__) 6- 8 A3 Blank 9-10 I2 Month 11-13 A3 Blank 14-15 I2 Day 16-17 A2 Blank 18-21 I4 Begin time 22-25 A4 Blank 26-27 I2 Number stations reporting an A event 28 A1 Letter A -- denotes very remarkable event observed 29-31 A3 Blank 32-33 I2 Number of stations reporting a B ...

... Data Analysis SAS News What is SAS? ... Archive, Pipeline & Catalogues XMM-Newton Science Archive Pipeline Processing System Observation Data Status Time Correlation Fix Serendipitous Source Catalogue OM Serendipitous Source Catalogue Slew Survey Catalogue Latest Slew Results Browsing Interface for RGS Data Live Radiation Monitor Plots Radiation Monitor Files . ... About XMM-Newton Image Gallery XMM-Newton Technical Details XMM-Newton SOC Overview XMM-Newton 10th Anniversary . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Les galaxies barr†йes sont moribondes . ... Les galaxies spirales dont une barre d'†йtoiles traverse le centre (dites barr†йes) sont plus vieillissantes que celles d†йnu†йes de barre. ...

THE AMATEUR ASTRONOMERS ASSOCIATION OF PRINCETON PRESENTS THE 23nd ANNUAL JERSEY STARQUEST Held at the Hope Conference and Renewal Center , Hope , NJ Beginning at 3 PM Friday, September 6, 2013 and running through 12 PM Sunday, September 8th 2013 Featuring Stargazing at a star ... available: Fishing, Hiking, Kayaking/canoeing (bring your own equipment) on two lakes and nearby Pequest and Paulins Kill Rivers Registration Fees Camping and RV -- $35.00 ... TOTAL NUMBER OF CHILDREN (Ages 6 ­ 12)? ...

... We have compiled the Catalogue of extragalactic supernovae using the GCVS card catalogue. ... Doubtful (?), or rejected (-) SN 8 A1 --- RemFlag [*] The '*' indicates a remark in sn_rem.dat 10- 19 A10 --- Gal Parent galaxy designation 21- 22 I2 h RAh Right Ascension 1950 of Parent galaxy 23- 24 I2 min RAm Right Ascension 1950 (minutes) 25- 28 F4.1 s RAs Right Ascension 1950 (seconds) 29 A1 --- DE- Declination 1950 (sign) 30- 31 I2 deg DEd Declination 1950 of Parent ...