... A non-linear relationship is observed between the sky brightness on clear and overcast nights, with a change in behavior near the rural to urban landuse transition. ... The great variation in skyglow radiance observed from site-to-site and with changing meteorological conditions underlines the need for a long-term international monitoring program. he introduction of artificial light has caused an unprecedented disruption to the nighttime environment over large areas of the Earth. ... Data processing...

... About meteorites . ... Meteorite Encyclopedia . ... About laboratory . ... On the night of September 24-25, in the north of Irkutsk Oblast, local residents saw a brightly glowing space object draw a line across the sky and fall into the taiga. ... But scientists learned of the heavenly visitor only on October 3, when a fax arrived at the Institute of Sun And Earth Physics from Bodaibo. ... The first thing we did was to interview residents of villages located along the meteor's flight path. ...

... These Facts and Questions pages mainly tell you how to use the Aberrator-interface and also explain the nature of the aberrations. ... Airy disc: the brightest spot of light when you look at a star in focus. This disc can contain a maximum of 84% of all the light that arrives from a star (perfect refractor telescope). MCT : Maksutov-Cassegrain telescope. A closed-tube mirror-telescope with a secondary obstruction. Less common than the SCT, this telescope uses a corrector (real glass). ...

... Solar Data: f.e. X-ray . Night Sky Live . ... Heavens-Above: Sky chart, Satellites, Iridiums and astronomical objects For Moscow For SAO Baksan . ... ESO-MIDAS page . ... Tutorials for Astronomy . ... Asteroid and Comet Hazard . ... Observable Comets: This page lists links to orbital elements and ephemerides of (potentially) observable comets. ... Leonid page - a lot of information for years Comets and Meteor Showers . The American Meteor Society . ... North American Meteor Network Home Page . ...

... SUPER RATIO . ... On this page I will present the most important (on my opinion) idea on Intellegence Life in the Universe . ... On the problem of the Super Ratio in astrophysics" . ... As a matter of fact, this is the main problem of the modern natural science. ... Here I shall try to speak about the most important problem of the modern natural science, the problem which is undoubtedly, of more importance than discovery of Blacks Holes, creation of Grand Unification Theory or Artificial...

. -!> download . Left: Consequtive explosion of 20 supernovae during 30 Myr. Right: Single hypernova (GRB) explosion with the total energy equivalent to 20 supernovae. The simulation was performed using a 2D Eulerian hydro code. The animation was done using IDL. -!>

Due to technical issues, on September 11, 1998 the radiolink was switched to 465 MHz channel. Data acquisition is presently performed only by SRC "PLANETA", Data Receiving Center in Obninsk and Western Siberia Data Receiving Center in Nobosibirsk . For conditions of obtaining data from RESURS-01 N3 please contact SRC "PLANETA". ... Registration of full data stream (61.44 Mbit/s) is performed only by Data Receiving Center, SRC "PLANETA", Obninsk. ...

Comment on J0513-2159 . Our image shows an extension to about 5 mas SE from the brightest feature. The EVN 8 GHz image by Dallacasa et al. (1998), with about five times larger resolution, shows an extension from the brightest feature roughly opposite to our direction. As noted by Dallacasa et al. (1998), the structure detected has a highly inverted spectrum, which, together with the reported variability in the source, could explain the structural disagreement. ...

... Printed in the U.S.A. doi:10.1088/0004-637X/691/2/1222 AUTOMATED LASCO CME CATALOG FOR SOLAR CYCLE 23: ARE CMEs SCALE INVARIANT? ... CME RATE DURING CYCLE 23 Figure 2 shows the daily CACTus CME rate for cycle 23 in red, with the International Sunspot Number (e.g., Vanlommel et al. 2004) superimposed in gray as solar cycle reference. ... The CACTus CME speeds Figure 12. ... A comparison of a sample of common events shows that on average the CDAW CME width is wider than the CACTus CME width. ...

A descriptor , also commonly called a file handle is an object that a program uses to read or write an open file, or open network socket, or a variety of other devices. ... The operating system enforces a limit on the number of descriptors that a program can have open at a time. ... One is a kernel limitation, depending on your operating system you will either be able to tune the number of descriptors available to higher numbers (this is frequently called FD_SETSIZE ). ...

The revision of the MASS/DIMM star catalogue N. Shatsky, V. Kornilov March 16, 2008 Abstract The compilation of the (updated) version of the MASS (MASS/DIMM) device target catalogue is described. ... Then the list was cleaned according to following criteria: I. Remove stars too faint for a MASS device. ... Here the color equation of the Sternb erg device was taken: M AS S mag = V mag + 0.45 (B - V ); stars with M AS S mag > 3.2 were removed. ... This was made based on the GCVS4.2 catalogue data. ...

... The Military Aspects of the Soviet Cosmonautics : A Side View . This book is the first effort in an unclassified Soviet publications to provide a comprehensive overview of the Soviet military space program. Presented here are the classification of the military space systems by functions performed (Chapter 1), the analysis of the organizational evolution of the Soviet space program (Chapter 2) and the description of all observable satellite systems of military or double destination (Chapter 3). ...

CN And CWA_CB According to lc from Jassur & Khodadadi [352] it is a CBV system because of asymmetry (primary maximum is greater than secondary) and large dA, but according to lc solution it is CWA overcontact system with components in poor termal contact. ... According to Coughlin et al. [354] is a marginal contact system with both components almost fill their critical lobes, light curve asymmetric, so authors use hot spot on the primary to solve light curves. ... So It may be the CW system. ...

... Определение высот полярных сияний по базисным снимкам Тикси. ... Береговой эфект в высотах полярных сияний. ... Результаты определения высот полярных сияний в б.Тикси в 1964г. Геомагнетизм . ... Проблемы космической физики (ПКФ), ?5, 1970 . ... ПКФ, ?15, 1980 . Вспышки блеска комет и солнечная корпускулярная активность. ... 1980 . Корпускулярноактивные области Солнца и вспышки блеска комет. ... Вспышки блеска комет. ... О гало льдистых тел, как возможном источнике вспышек блеска комет. ...

... It is created for freeware distribution as an attempt to show the achievements of the Russian space industry and tell a story of the reusable orbital ship "Buran" . On your screen you will see a stunningly realistic picture of near-Earth space, as well as several spacecraft, created or envisaged by the really talented Russians: . ... demonstration mock-up of the military orbital laser station "Polyus" ("Pole") , which suffered a failure during its launch on May 15, 1987; . ... Texture . ...

. - back to the Virtual Space Museum index. - how to view VRML's, etc... A cool clickable scheme of Mir base module . Mir base module . From Shuttle to Mir . Mir fly-around (VRML) . Mir fly-around (VRML), with Soyuz, Progress and Shuttle . Communication satellite Luch (Altair) . Core module in assembly building . Mir, front view . Right side of Mir . Bottom view . Kristall module . docking mechanism . Luch (Altair) communication satellite . "Space motorcycle" .

. Download Izmccd (~2.7 MB). Viewing of image. Use the following functions of the program for viewing an image: . 1) Increase/decrease of scale. For this purpose, press / on the toolbar; and click on any place of the frame. There will be a change of scale. Besides the image will be centred on this place. 2) Increase/decrease of brightness is made by buttons / , or through adjustment of values of a background and range. This is the  button. 3) Mode of a negative is . Previous Next . Main page

... StarCalc Home Page - Downloads . ... File . StarCalc (English version) . ... With minimal configuration, version 5.72 of StarCalc includes the next interfaces: "Horizon", "Horizontal coordinategrid", "Equatorial coordinate grid", "Constellation boundaries", "Constellation lines", "Constellation names", "Star proper names", "Bright Star Catalog", "Deep-sky objects", "Sun", "Moon" and "Planets and satellites" . Plugins for StarCalc . ... Interface to NGC 2000 (plugin + catalog file) . ...

... Научная панорама ? arxiv:1411.6009 Множественные изображения сверхновой, значительно усиленной линз . ... arxiv:1411.6009 Множественные изображения сверхновой, значительно усиленной линзированием на галактике раннего типа в скоплении (Multiple Images of a Highly Magnified Supernova Formed by an Early-Type Cluster Galaxy Lens) . ... Впервые поймали множественное изображение сверхновой, сформированное гравитационной линзой. ... Появилось новое изображение сверхновой Рефсдала! . ...

J2000 name -- a 10 letters long name of the source in notation Jhhmmdddmm where hhmm are hours and minutes in right ascension, dddmm are degrees and minutes in declination at the J2000.0 epoch. No rounding is performed.