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D. Suprunenko Institute of Mathematics, National Academy of Sciences of Belarus Minsk, Belarus suprunenko@im.bas-net.by Lower estimates for the maximal weight multiplicities in irreducible representations of the classical algebraic groups The goal of this talk is to discuss some results on lower estimates for the maximal weight multiplicities in irreducible representations of the classical algebraic ... For groups of type An the situation is substantially more difficult. ...

... What happened to Jupiter's Great Red Spot? ... Jupiter's thick atmosphere is striped by wind-driven cloud bands that remain fixed in latitude - dark colored bands are known as belts while light colored bands are zones. At Jupiter's belt-zone boundaries the shearing wind velocities can reach nearly 300 miles per hour. ... Comet Hale-Bopp Enters the Evening Sky . ... Both writer/editors of APOD are impressed by how bright Comet Hale-Bopp has become, and how easily visible it is. ...

spaceweb@oulu.fi - last update: 21 December 1998, 1400 UT (RR) . ... This is not as trivial a question as one might think, since it is not enough to know the location with respect to the Earth and/or the Sun in some arbitrary coordinate system. One may have to consider things like differences between the solar equatorial plane and the Earth's orbital plane, the changing direction of Earth's spin axis during the year, and the magnetic dipole orientation. ... Geocentric solar ecliptic . ...

Coordinate Systems used for spacecraft trajectory description: . ... The HGI coordinates are Sun centered and inertially fixed with respect to an X-axis directed along the intersection line of the ecliptic and solar equatorial planes. ... Cometocentric (solar) Ecliptic Coordinate System (CSE) . ... CSE coordinate system for the SC POSITION: axis origin at comet center, X-axis to the SUN, Z-axis to ecliptic north pole, (X,Y)-plane is parallel to the ecliptic plane. ...

Next: Conclusion Up: Old neutron star distribution Previous: Results of calculations . As is seen in Fig. , the old galactic neutron stars fill a thorus-like region extended up tens kiloparsecs above the galactic plane with sharp deficiency of stars toward the galactic axis. ... Now return to the crucial question about the applicability of the ergodicity principle to the dynamicas of stars in a real galaxy. ...

... Fit the ring around the equator and then change its inclination from 0 degrees (equatorial orbit used by geosynchronous satellites) to 28.5 degrees (space shuttle orbit) to 51.6 degrees (space station orbit) to 90 degrees (polar orbit used by spy satellites). by Rob Landis, Space Telescope Science Institute . ... With so many satellites now in orbit, it is likely that you have seen an artificial satellite zipping across the night sky. ... http://www.amsat.org/amsat/ftpsoft.html . ...

Whoever looked up at the sky at dusk on Monday, 1st December was fortunate enough to see one of the most beautiful night-sky views of the year тАУ a massing of planetary bodies in the south-west. The gas giant planet, Jupiter, was nearly in conjunction with bright, тАШevening starтАЩ, Venus, and the Moon. ... The images show, respectively, the telescope and Venus emerging from behind the Moon, after the end of the occultation, while Jupiter is above and to the right. ...

lbw gain and turret position . ... A 2 deg turret step (2*.75= 1.5 arc minute on the sky) was used (about .5 beam widths). ... The green, blue, and dark red lines are all at about the same gain so the measured best position is at least .57 degrees above the surveyed position (it probably wouldn't hurt to redo this since we didn't go over the other side of the gain vs turret position curve). processing:x101/020401/doitsbh.pro The cband beam width at 5 Ghz is about 60 asecs. ... step Used . ...

... Posts tagged ?class? ... I couldn?t believe my eyes when I saw 4754 degrees of freedom (d.f.) and chi-square test statistic 4859. ... Then with a great shock 4754 d.f. appeared. ... Tags: Binning , chi-square , chi-square minimization , chi-square optimization , chi-square statistic , class , degrees-of-freedom , equiprobable , goodness-of-fit test , kernel density estimation . Category: Bad AstroStat , Fitting , High-Energy , Methods , Spectral , X-ray | 2 Comments . ... Entries RSS . ...

Many entry fields permit sexagesimal entry (h:m:s.s or :':"). ... Sexagesimal entry is flexible in that you can specify one to three fields, as you desire. ... Position entry widgets assume that a single field is decimal hours or degrees (h.h or . ... You may specify one to three fields: . ... Note: sexagesimal offsets and durations are entered in the same fashion, but a single field is decimal arc-seconds or seconds ('.' or s.s) and two fields are (arc) minutes and seconds (':"." or m:s.s). ...

... PRIMESRC : The INDEX value (see column description below) of the prime source. E_EXPRn : There are n ( ) occurrences of this keyword, one for each EPIC source list added to the RGS list. ... E_mBNDn : Similar to the E_EXPRn keyword, but this records the value of either ID_BAND (in the input RGS source file, when filemode =`modify') or bandids , which is used to select the EPIC sources and to calculate the RATE value, transmitted into the output RGS source list. ... real32 . ... EPIC_FILE . ...

... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

This page gives the name and meaning of the various parameters which can be queried in HyperLeda through SQL requests . ... real . ... actual error on t . ... log 10 of apparent major axis diameter d25 at 25 mag.arcsec -2 (d25 in 0.1') . ... actual error on logd25 . ... Apparent maximum rotation velocity of gas . ... log 10 of apparent corrected diameter (dc in 0.1') . ... total apparent corrected B-magnitude . ... total apparent corrected U-B color . ... Questions: leda@univ-lyon1.fr ...

... There are number of features that can be set by the user in the Sparkle Dialog box. ... The Sparkle plug-in computes the luminosity (level of whiteness) of each pixel in the image (the user can see this when the progress window labeled Generating luminosity array... is displayed). ... The threshold value is currently a slider/text field pair which have a precision of .0001. ... Like the Threshold value, the Flare Intensity has both a slider and a text input field for specifying its value. ...

Check out the new images (Jan 18-25) and (Jan 26-Feb 05) of the comet by Rob McNaught. ... Every few years a comet becomes bright enough to be easily seen with the naked eye but only every decade or so are these comparable with comets like Halley. ... Before Jan 13, the comet is not visible in the Australian sky after sunset. ... SOHO images . ... On Jan 12 at approximately 09:00 UT (8pm NSW time), comet C/2006 P1 McNaught appears at the 11 o'clock position in the images. ... STEREO images . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... ESO Acronyms . ... Survey Telescopes . ... Images . ... Star Clusters . ... Usage of ESO Images and Videos . ... Usage of ESO Videos and Images . ... Stars@ESO . ... ESO Science Newsletter . ... VST . ... The first released VST image shows the spectacular star-forming region Messier 17, also known as the Omega Nebula or the Swan Nebula, as it has never been seen before. ...

ATMoB "Double Star Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston ­ in particular, double, triple, and multiple stars. Introduction: Double, triple, and multiple stars are the "Rodney Dangerfields" of the night sky. ... W hile they can be observed under a variety of sky conditions, double stars ­ especially close ones ­ are best viewed on nights when the seeing is steady. ... The direction from a star to Polaris is north. ...

... For a plot with polarisation vectors, you need a set with intensities ( inset ) that represent the vector lengths, and a set with numbers in degrees or radians ( polset ) that represent the vector angles (angles with respect to the north). ... Top axis has no labels axis rpa00 polmode R ! ... Read the (sub)set with the vector angles The polarisation vectors will be plotted with command polplot . ... A third number in the polplot command sets the conversion of an intensity to a vector length in grids...

... Physical conditions in the observable atmosphere of the brown dwarf Gl 229B are intermediate between those found in a giant planet atmosphere, such as Jupiter's, and a stellar atmosphere. In one important respect, however, Gl 229B shares kinship with giant planet atmospheres: temperatures in the observable atmosphere are cool enough that the gas is essentially completely molecular. ... The carbon monoxide (CO) 1-0 fundamental also falls in this spectrum interval. ...