... Structure of Data . ... Catalog . ... Catalog: 206 clusters 32 clusters: known before 12 clusters: parameters from BVRI photometry @ SAO 1-m 0 clusters: parameters from UBVRI photometry @ Maidanak 1.5-m 26 clusters: parameters from 2MASS 168 clusters: new (2MASS) 142 clusters: parameters from 2MASS 26 clusters: embedded 0 clusters: parameters from BVRI photometry @ SAO 1-m 3 clusters: parameters from UBVI photometry @ ARIES 1.04-m 0 clusters: parameters from UBVRI photometry @ Maidanak 1.5-m . ...

The purpose of the space-physics lab exercises is to introduce the students to the methods of the measurements, to the modern conception of near-Earth space structure and the physical processes and phenomena occured in it. ... At present the reasearches and the teachers of the University and of other institutes participating in the project continue development of the the special space-physics lab exercises, and they are interested in your ideas concerning the future exercises. ...

Peremennye Zvezdy ( Variable Stars ) 33 , No. ... From our comparison of magnitudes of bright stars in the Hipparcos catalogue and in the Tien-Shan catalogue of magnitudes, we compiled a list of stars that could be candidate photometric standards in the northern sky. The selected stars were tested for variability using the technique. ... Fig. ... It follows from Fig. 7 that if , then, according to the theory, we should expect the star to be variable. 54 stars are situated in the range. ... star . ...

The new view on the population of Galactic open clusters A.E.Piskunov1, N.V.Kharchenko2, S.RЖser3, E.Schilbach3, R.-D.Scholz4 1 2 3 4 Institute of Astronomy, Moscow, Russia Main Astronomical ... Observatory, Kiev, Ukraine Astronomisches Rechen-Institut, Heidelberg, Germany Astrophysikalisches Institut Potsdam, Germany What are open clusters and what do they teach us Groups of Population I ... Cluster complexes: OCC-1 = Gould's Belt cluster complex? ...

The first version of UNIX was created in 1969 by Kenneth Thompson and Dennis Ritchie, system engineers at AT 's Bell Labs. It went through many revisions and gained in popularity until 1977, when it was first made commercially available by Interactive Systems Corporation. At the same time a team from the University of California at Berkeley was working to improve UNIX. ... The 1978 release of Version 7 included the Bourne Shell for the first time. ... Modern variants of UNIX . ...

... 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. ...

Russian . ... Very Early Universe: inflation, generation of primordial perturbations, preheating . Very Early Universe: inflation, generation of initial perturbations, preheating . Cosmic Microwave Background Radiation: anisotropy and polarization . ... Dark Energy and Dark Matter models . High Energy Astrophysics: accretion discs, cosmic rays, gamma-ray bursts . ... Astrophysics of black holes and wormholes . ...

The Mass Function of Dark Halos in Sup erclusters and Voids E. P. Kurbatov1 1 ,* Institute of Astronomy of the Russian Academy of Sciences A mo dification of the Press­Schechter theory allowing for presence of a background large-scale structure (LSS) ­ a sup ercluster or a void is prop osed. The LSS is accounted as the statistical constraints in form of linear functionals of the random overdensity field. ... Variance as a function of mass for different sets of constraints. ...

. The station "Clementina". The station "Clementina", launched in January 1994, belonged to the apparatus of a new generation, made on the base of superlight materials. Besides the Moon's relief shooting this station measured the height of relief and thinkness of the Moon crust, the model of the gravitation field and some other parameters. Back .

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Phase range for plots: -0.5 to 1.0 0.0 to 2.0 0.0 to 1.0 . ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... Two period search methods are currently implemented. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . ...