... Tonight's Sky . ... The Magazine . ... Observing . ... An artificial comet holds secrets to Earths life . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... What is the difference between comets and asteroids? ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... On July 20th, 1969, a human first set foot on the Moon. ... Indicated on this infrared image of the galactic center region is the position of SGR 1900+14 - the strongest known magnet in the galaxy. ... Grand spiral galaxy NGC 1232, recently captured in detail by the new Very Large Telescope, is a good example. A Peculiar Cluster of Galaxies . ... A diverse group of galaxies populate this cluster, including, on the left, an unusual galaxy showing an equatorial polar ring and a large spiral. ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Taking Steps to Make a Difference . ... The test measures students' basic knowledge regarding Earth, physical and life sciences, and basic scientific principles. ... Fourth-grade: sixty-eight per cent achieved at or above the basic level. ... Eighth-grade: fifty-nine per cent scored at or above the basic level. ... Twelfth-grade: fifty-four per cent performed at or above the basic level. ...

spaceweb@oulu.fi - last update: 5 January 1999, 1500 UT (RR) . Geomagnetic pulsations, i.e., ultra-low-frequency (ULF) waves cover roughly the frequency range from 1 mHz to 1 Hz , i.e., from the lowest the magnetospheric cavity can support up to the various ion gyrofrequencies . ... Pulsation classes . ... Pulsations are studied with in situ observations in space of both magnetic and electric fields, and with ground-based magnetometers . ... correlation with IMF/solar wind parameters . ...

Next: General formulae Up: No Title Previous: Morlet wavelet and . The modulated waves of section 14 are processed using the Morlet wavelet, and their local norms are shown below. ... The most striking difference with the Mexican-hat transform in section 14 is the shift in emphasis from the individual maxima and minima to the local periodicity. Figure 17: Morlet-wavelet transform of the signal. ... Figure 18: Morlet-wavelet transform of the modulated oscillation. ...

... Trends in UT/LS over northern mid-latitudes from late 1970s to late 1990s (GASP, MOZAIC and ozone sondes) 6. ... 2007 Ozone changes in the upper troposphere: second part of 1970s vs. second part of 1990s MOZAIC - GASP (%/decade) Hatched boxes: differences significant (95%); Grey triangles: GASP data biased toward 1 year ( 50% from 1 year); Green triangles: GASP data only from 3 years Differences only displayed if GASP data available from 3 years and ensemble size 10 ...

Astronomy Discussion Forums . ... Teleportation . ... If the Sun lost half its mass; = includes basic concept apparently Sun losing "half its uncertainty", = Sun becoming more factorised (concentrated) .. ... If the sun lost half its mass, on this idea it would partially let go of gravity (well conventional physics says this too?) ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Microsymposium 34, MS058, 2001 ANOMALIES OF THE MOON'S THERMAL EMISSION IN THE IR SPECTRAL RANGE (10.5 - 12.5 micron). ... Sternberg State Astronomical Institute, Moscow, 119899, Russia, pugach@sai.msu.ru Summary: New satellite measurements of the lunar-surface radiation temperature were used to construct the spatial angular function of thermal radiation of the Moon in the infrared (10.5-12.5 micron) spectral range. ... These thermal anomalies are observed only in the limited range of phase angles. ...

Multicomponent Type II Radio Burst . in Eruptive Event of 12 April 2001 . ... GOES soft X-rays * some images GOES protons * SOHO/LASCO/C2 (running difference) . SOHO/LASCO/C3 (running difference) . ... re-formation of the coronal magnetic structures SOHO/EIT, 195 A (original) * SOHO/EIT 195 A (modified) SOHO/EIT 195 A (difference to 10:00 UT) SOHO/EIT 195 A: difference images to 10:00 UT * SOHO/EIT 195 A (running difference) * SOHO/EIT 195 A: running difference images * EUV dimming and CME . ...

SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW . Spectrum analyzer allows onboard computation of electromagnetic waves spectra registered (observed) in the ionosphere and magnetosphere in the ELF/VLF frequency band. ... It consists of magnetic antenna, preamplifier, 16 bit sigma delta AD converter, DSP processor and telemetry interface. ... The channels of lower frequencies are averaged and transmitted with lower repetition rate so the telemetry volume is reduced. ... Dynamic range: 90 dB . ...

Among the fundamental characteristics of a material/medium such as chemical composition, density, conductivity, viscosity, one should probably give the first place to the optical constants - the refractive index and the extinction coefficient . ... The parameter i in Eq.(1) describes the optical properties of the medium where radiation propagates. ... The optical constants and allow one to estimate not only transmittance and absorption of radiation, but also its reflection at the border of two media. ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

... FIELD | ... public interface Blitter . ImageJ bit blitting classes must implement this interface. ... static int . ... dst=dst+src . ... Field Detail static final int COPY . ... Constant Field Values . static final int COPY_INVERTED . ... static final int COPY_TRANSPARENT . ... static final int ADD . ... static final int SUBTRACT . ... static final int MULTIPLY . ... static final int DIVIDE . ... static final int AVERAGE . ... static final int DIFFERENCE . ... static final int AND . ...

... start : historical_dates . ... SAI VO Projects . ... Help on Wiki search . ... Show page Old revisions . This shows you the differences between the selected revision and the current version of the page. historical_dates 2011/04/28 02:22 . historical_dates 2011/04/28 02:23 current . Line 33: . ... code> . ... historical_dates.txt Last modified: 2011/04/28 02:23 by karpov Back to top . SAI VO | ... SAI MSU | ...

... Electrode polarization measurements . ... Processing of ceramic materials, electrode systems and electrochemical cells . ... The measurements are carried out in the 3-electrode cells with working (WE), counter (CE) and reference (RE) electrodes. ... The impedance measurements enable to separate Ohmic losses associated with the resistivity of the electrochemical cell components from the polarization losses resultant from slow kinetics of the electrode processes: . ...

Modality. ... Derivational Modal Logics with the Difference In: Advances in Mo dal In: Leo Esakia on Duality in Mo dal and Intuitionistic Logics. ... Logic, v. 10. ... Derivational modal logic of real line with difference modality. ... On modal logics of Hamming Advances - Advances in Mo dal Logic, Volume 9, 2012, pp. ... On top ological mo dal logic of real line with difference mo dality. ... Topological modal logics with difference modality. ... Topological modal logic with the difference modality. ...

There are two main versions of UNIX in use today: System V and BSD . ... From a user's perspective they are very similar and you are unlikely to have difficulty unless you use more than one type of system. In this case you might notice differences in the structure of the file system or in how certain commands behave. ... Although UNIXhelp is now based on a System V variant of UNIX, you should see only minor differences in the example input and output if your system is a BSD one. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Space Flight . ... Godspeed John Glenn": A reminder of the days when NASA could send astronauts into orbit. Image credit: NASA) . Watched by a TV audience of 100 million, the Atlas functioned beautifully and Glenn became the first American (and third human; Gagarin and Titov preceded him) in orbit. ... No female astronaut flew on a NASA mission until Sally Ride?s flight in 1983, by then Glenn had changed his position. ...

The monitoring of the optics quality of DIMM instrument V. Kornilov, B. Safonov May 24, 2010 1 Intro duction A quantitative theory of measurement of optical turbulence (OT) with Differential Image Motion Monitor (DIMM) is based on certain priori assumptions [1]. ... Bottom: behavior of the instrumental Strehl's number for the left (triangle to the left) and right (triangle to the right) DIMM images during the period of measurement the maintenance of an additional correction factor seems superfluous. ...

Download Izmccd (~2.7 MB). ... a) a choice of the best mode of measurements of stars and objects ("Properties/Measurement"), . b) a choice of reference stars. ... 1) necessity of presence on an image of a plenty of stars (we recommend to apply this mode, if on the frame of reference stars is more 100) . ... Sx and Sy depend from residuals at all reference stars (reference stars are marked by blue color). ... These residuals are the image of the star a minus function of a profile for each pixel. ...