... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

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• Introduction
• Polarization properties (transmitted radiation)
• Model of clusters

... Solar Space Experiments in LPI . ... The main goal of the TESIS is to provide complex observations of solar active phenomena from the transition region to the inner and outer solar corona with high spatial, spectral and temporal resolution in the EUV and Soft X-ray spectral bands. ... Solar EUV Coronagraph (SEC), based on the Ritchey-Chretien scheme, to observe the inner and outer solar corona from 0.2 to 4 solar radii in spectral band 290-320 A . ... 2 arc. sec./pix . ... Backside-CCD 2048*2048 pix...

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• TESIS - Telescopes for EUV Spectral Imaging of the Sun
• SphinX press release
• NASA's Spitzer Images Out-of-This-World Galaxy - Astronomy news

EIGHTEENTH CREW . ... EXPEDITION EIGHTEEN (ISS-18) . MAIN TASKS OF THE EXPEDITION: . Launch of two crew members of the ISS-18 expedition and a participant of the space flight of the visiting crew VC-15 (the USA) on board the Soyuz TMA-13 vehicle of mission 17S; . Soyuz TMA-13 docking to the instrument compartment of the Zvezda Service Module (SM IC); . ... Servicing of operations on Space Shuttle (Mission ULF2) docking. ... Servicing of operations on Space Shuttle, Mission 15A, docking. ...

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• S.P.Korolev RSC Energia - ECOLOGICAL MONITORING
• S.P.Korolev RSC Energia - MIR ORBITAL COMPLEX
• S.P. Korolev RSC Energia - International Space Station

Apparent Encounters of the Outermost Satellites of Jupiter c 2004 Ц. M. I. Varfolomeev, N. V. Emelyanov Sternberg Astronomical Institute, 13 Universitetskij prospect, 119992 Moscow, Russia e-mail: maximus@sai.msu.ru Abstract. Orbital parameters of any two planetary satellites may be refined from ground-based observations on the basis of differences in their astrometric coordinates. ... For these intervals we calculated apparent angular distances between satellites for the beginning of each day. ...

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• http://lnfm1.sai.msu.ru/~victor/eng/scen.htm
• Data bases of Natural Satellites. Documentation. Structure
• Maidanak Lab page

My colleagues and I have recently completed a series of observations of SN1999an. ... The telescope is located at Martin Observatory in Blacksburg, VA, and is operated by the Physics Department of Virginia Tech. Our IAU Minor Planet Center Observatory Code is 841. ... Attached you will find a copy of one of our images (in .jpg format) with the supernova indicated. ... Virginia Tech Department of Physics . Back to Bright Supernovae . Back to Supernova 1999an . ...

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• THE BRIGHT SUPERNOVA 1991T IN NGC 4527; AN AMATEURS PRESPECTIVE

... What is the notion time? ... Generally speaking, it is an order of changing events, an order of constantly changing conditions of solids, Universe - being. ... The time, determined for the given longitude, is called the local time . ... A uniform system of time counting - ephemeris time is tested by observations of the Moon turning around the Earth. Fully independent from astronomic observation uniform system of the time counting is based on the concept of atomic second (see quantum watches ). ...

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• teleskgalphoto1e
• antichnoste
• Keplere

Cosmic Ray laboratory of . ... Neutron Monitor (Cosmic Ray Observations) . is situated in Irkutsk (Russia) . ... Height - location above sea level . ... Height: . ... For recording the CR (Cosmic Rays) neutron component at Irkutsk, . neutron monitor NM-64 is used, which is an installation with 18 two-meter proportional counters filled with BF 3 (boron trifluoride gas) in which the B 10 90 per cent of the total boron. ... The neutron monitor is located at 475m above sea level. ...

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• Irkutsk Cosmic Ray Station

... The reduction system of observations FADPS (description in Russian) (Flexible Astronomical Data Processing System) for data of wide-band receivers of the first observation cabin of the radio telescope RATAN-600 had been created under the Unix-like operational system DEMOS for computers of the SM-1420-type (PDP/11) in 1987 for observation analysis and estimates of coordinates and flux densities of radio sources. ... FADPS: flexible astronomical data processing system at RATAN-600 in UNIX environment....

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• Group for study of galaxies and cosmology, history
• Description of SED models
• To gravitational wave discovery with LIGO

... After all we cannot send a probe to the star Altair to confirm that it is 17 light years away. ... The "Bessel determined that the star 61 Cygni was about ten light years away" Earth goes around the Sun in one year, so in six month it is in the opposite position in its orbit. ... In 1838 Bessel determined that the star 61 Cygni had a parallax of 0.314 arcseconds and therefore the star was about ten light years away (today the distance is more precisely measured to be 11.4 light years). ...

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• ALMA Antennae sees Antennae Galaxies | Astronotes
• Asteroid Apophis-Doomsday Postponed | Astronotes
• Earth and Moon from Juno spacecraft: image of the month | Astronotes