... Magnetic field lines similarly describe the structure of magnetic fields in three dimensions.They are defined as follows. If at any point on such a line we place an ideal compass needle, free to turn in any direction (unlike the usual compass needle, which stays horizontal) then the needle will always point along the field line (drawing below). Field lines converge where the magnetic force is strong , and spread out where it is weak. ... Exploration" home page (index) Glossary . ...

... If at any point on such a line we place an ideal compass needle, free to turn in any direction (unlike the usual compass needle, which stays horizontal--such needles exist, see bottom of page) then the needle will always point along the field line (drawing below). ... Because of this attachment, the behavior of electrified gas ("plasma") in space, a gas of free ions and electrons, is dictated by the structure of field lines: Electric currents, for instance, find it easiest to flow along such lines. ...

Updating... 1-st camera description . 2-nd camera description . Astronomical sites Webcams . ... Refresh after s. BTA "in-dome" TV-camera . Archive ) . BTA "outdoor" TV-camera . ... World Observatories Webcams List. ... direct image streaming . ... the only image stream . ... ActiveX module . ... Axis ActiveX module for Microsoft Internet Explorer) . Java Applet . ... Cambozola Java Applet for any browser with Java ) ...

... NGC 5252 is an S0 galaxy at a redshift of z 0.0230. ... NGC 5252 harbors a Seyfert 2 nucleus which illuminates a defined biconical structure of ionized gas extending up to 17 kpc ( = 100 ) from the center of the galaxy (Tadhunter & Tsvetanov 1989, Prieto & Freudling 1995). ... The SUMA code (Viegas & Contini 1994, and references therein) calculates the emission spectra (lines and continuum) from a shocked cloud which may also be affected by photoionizing radiation, in a plane-parallel geometry. ...

... java.lang.Object ij.gui.Roi ij.gui.Line . ... public class Line . ... int . ... protected double . ... Constructor Detail public Line (int ox1, int oy1, int ox2, int oy2) . Creates a new straight line selection using the specified starting and ending offscreen integer coordinates. public Line (double ox1, double oy1, double ox2, double oy2) . Creates a new straight line selection using the specified starting and ending offscreen double coordinates. public Line (int sx, int sy, ImagePlus imp) . ...

... An interactive IRAF task for the analysis of Extreme Ultraviolet Explorer ( EUVE ) emission line spectra is presented. The line flux in extracted spectra may be measured by multiple techniques, including fitting individual lines. ... To aid in identifying lines, the positions of known lines may be marked on the spectrum during the fitting process. Also, model EUVE spectra may be constructed and overlaid using plasma emissivities and source emission measures supplied by the user. ...

A LINE OF PROSTHETIC APPLIANCES . ... Drawing upon a high scientific and technological potential of prosthetic research institutions of Moscow and St.-Petersburg, using new materials and processes, with support from the Russian Federation Ministries of Economics and Labor, over a 10-year period RSC Energia has managed to set up production of a wide range of advanced modules, assembly units and components for prosthetic appliances. ... NEWS ARCHIVE | ... Official WEB-site of S.P.Korolev RSC Energia . ...

... The spectrum of the Sgr B2 molecular cloud has been surveyed between 215 and 265 GHz towards 3 positions, the dense cores Sgr B2(N)and Sgr B2(M), and the quiescent core Sgr B2(NW). ... The Sgr B2 molecular cloud, located approximately 100 pc from the Galactic Centre and with a mass of , is one of the most extreme cases among star formation sites ( Lis & Goldsmith (1991) ). ... Of the 3 observed positions Sgr B2(N) has the strongest line emission in most molecular species with a few exceptions. ...

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