... The circumnuclear GASEOUS disks are often decoupled from the circumnuclear stellar disks and are even stronger inclined to the outer disk planes; in fact, we have found a considerable `population' of inner polar rings. Inner gas polar rings are found as in spiral galaxies with the massive outer gas disks co-planar to the main symmetry planes (e.g. NGC 2841, Sil'chenko et al. 1997, and NGC 7217, Sil'chenko & Afanasiev 2000) as well in many lenticular galaxies (Fig. ...

Abstract -- Calculations are performed for the linear polarization of starlight due to extinction by aligned dust grains when the starlight traverses a medium with irregular magnetic fields. This medium is intended to represent the optically thick components of interstellar clouds which are observed to make little, if any, contribution to the polarization of starlight. ...

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

. Russian Version [ MS-Win ] . [ News ] . [ Satellite data ] . [ SMIS ] . [ ] . The program processes multi-band images to detect homogeneous areas and perform image classification. It includes a number of segmentation algorithms. The classification can be performed using various methods - nearest neighbor, normalized distance, estimate calculation. Demo version . Price . Back to SMIS Home Page .

... Therefore, the observatory supports educational events, occured in the SAO, including astronomical and astrophysical schools, lectures and excursions at the SAO's telescopes. ... Thursday 9-00 Breakfast 9-30 Opening of the School and Astronomical Olimpiad 10-15 Photo of particapants (near the SAO entrance) 10-30 Lecture about Specail Astrophysical observatory. Chentsov E.L. 13-30 Lunch 14-00 Excursion to historical places of Nizhnij Arkhyz 18-00 Dinner 19-00 Acquaintance evening. ...

... Высокого качества (19.5 MB) . Низкого качества (2.9 MB) MPEG . ... Низкого качества (2.9 MB) This movie shows dynamic rings, wisps and jets of matter and antimatter around the pulsar in the Crab Nebula as observed in X-ray light by Chandra (left, blue) and optical light by Hubble (right, red). ... To produce a movie of reasonable length the sequence was looped several times, as in looped weather satellite images. ... Авторские права: X-ray: NASA/CXC/ASU/J.Hester et al.; ...

VIEW OUT OF THE WINDOW FROM ALBUQUERQUE, NEW MEXICO, USA . The winter started early here with severe snow storms in November and December. ... But this winter we had so many storms, food had to be air-lifted by the Air Force, to feed farm animals in the countryside. The weather began to get much better in January. Now it is cool and sunny. ... New Mexico is usually very dry, . ... This altitude, coupled with the dry sunny climate, results in very cold nights and cool days in the winter. ...

. -!> 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. -!>

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

... 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 . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Site Info . ... NEW: see the Leonids LIVE! ... I have added a list of live webcasts that will let people all over the Earth see what the shower is doing from the points which may get the predicted max from the meteors. ... A dark site is best, but Leonids are known for fast bright meteors, so even a bright sky is not so bad. ... Here is a list of web sites that will be broadcasting the Leonids live over the web. ... Leonids Live! ... 2008 Phil Plait. ...