... 8, ``Celestial Mechanics'', 2002 Dynamics of the Saturnian system with regard to high precision observations A. Vienne 1;2 , W. Thuillot 1 , J. E. Arlot 1 1 IMCCE/Observatoire de Paris 2 Universit'e de Lille, France The acquisition of high precision astrometric observations of Solar System ob­ jects can be applied to the improvement of the dynamical models and to explore some specific problems of celestial mechanics. ... Vienne A., Duriez L. TASS1.6: Ephemerides of the major Saturnian satel­ lites. ...

Find Similar Abstracts (with default settings below ) . ... Translate Abstract . ... Bispectrum speckle interferometry and future long-baseline interferometry of the carbon star IRC+10216 . ... 2003SPIE.4838.1055B We present near-infrared (JHK) bispectrum speckle-interferometry monitoring of IRC+10216 obtained with the SAO 6m telescope. The present speckle observations covering baselines up to 6m provide important complementary informations for future long-baseline interferometry. ...

... P1372 Date Received: 1999-Oct-01 15:32:02 Technical Page Proposal Type: Regular General Category: Pulsars Sub-Category: Continuum Observation Category: Galactic Total Time Requested: 12.5 Hours Proposal Title: The Nonlinear Dynamics of Drifting Subpulses ABSTRACT: Approximately 30 pulsars are known to exhibit the intriguing phenomenon of drifting subpulses. ... As an initial test we propose observations of PSR J2018+2839 at 430 MHz to search for evidence of low-dimensional chaotic drift. ...

... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

... Keywords: globular clusters,M3,photometry,HST . ... Perform the most accurate test of the ``stellar clock'' used in dating globular clusters. ... These data will provide the first complete sample of post-main sequence stars over the entire area of the cluster, and will allow the most stringent tests of stellar evolution and dynamics models. ... M3 contains the largest population of Blue Straggler Stars (BSS) detected in a globular cluster so far ( ). ...

... About ATNF overview . News | ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... Careers overview . ... Parkes radio telescope . Australia Telescope Compact Array . ... New, high resolution observations of the HI emission line and 20-cm continuum at the Australia Telescope Compact Array (ATCA) for the prototype polar ring galaxy NGCб 4650A are presented. ...

... The experience of determination of the link between radio sources and dynamical reference frames is presented. To obtain this connection we used a series of very long baseline interferometry (VLBI) observations of the spacecraft Phobos-2 and angularly nearby quasars. ... The dynamical reference frame is determined by equator and equinox of these ephemerides. ... References . ... The relative orientation of the radio and dynamical reference frames can be described by a sequence of three rotations . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The interface between the lower solar atmosphere where energy is generated by subsurface convection and the corona comprises the chromosphere, which is dominated by jet-like, dynamic structures, called mottles when found in quiet regions, fibrils when found in active regions and spicules when observed at the solar limb. ... In addition, how they affect the coronal heating and solar wind need to be further explored. ...

Title: The Celestial Reference Frame at 24 and 43 GHz. I. Astrometry Authors: Lanyi, G. E.; Boboltz, D. A.; Charlot, P.; Fey, A. L.; Fomalont, E. B.; Geldzahler, B. J.; Gordon, D.; Jacobs, C. S.; Ma, C.; Naudet, C. J.; Romney, J. D.; Sovers, O. J.; Zhang, L. D. Affiliation: AA(Jet Propulsion Laboratory, Caltech, 4800 Oak Grove Dr., Pasadena, CA 91109, USA ), AB(U.S. Naval Observatory, 3450 Massachusetts Ave., ... Median formal uncertainties at 43 GHz are 0.20 and 0.35 mas, respectively. ...

... The 7 and 15 um observations of the Galaxy obtained by the ISOGAL program offer an unique possibility to investigate and separate the different populations of stars in the Galactic Plane, in particular to study the population of low flux density YSOs which could not be detected with IRAS. ... The criteria are applied to five ISOGAL fields centered at l~+45 deg and b~0 deg, covering a total area of 0.504 deg$^2$. ...

SN 1989B Light Curve Analysis. ... In the light curve depicting their observations, definite trends are noted, here is a "thumb-nail" analysis of the the magnitude estimations of the bright SN (1989B) in the galaxy NGC 3627 (M66). ... The observations were inserted against the V magnitude templete of BL, CCD photometric data, (Wells et. al, (1994) and a color trend (B-V) histogram of the mean type Ia SN (BL)(nutemp.gif). Key Words: Amateur Observations, Supernova, Magnitude Estimates, 1989B . ...

... Future seminars . ... G.V. Levina (Institute of Continuous Media Mechanics) . ... Abstract . ... The INTEGRAL mission and its first results" . ... Reconnection - new basic results and solar simulations " . October, 30 . ... D.L. Vainchtein (IKI RAN; Dept. of Mechanical and Environmental Engineering, University of California Santa Barbara, USA) . ... New results on Solar Structure and Dynamics and Solar Space Observatories " . ... E.B. Gliner (Theoretial Research Institute, San Francisco) . ...

... Old World First Asteroid Radar Echo. ... It testifies that 4179 Toutatis is a double object like asteroid 4769 Castalia. ... Interference of Radar Echo from the Binary Asteroid 4179 Toutatis. ... An analysis of the 6-cm radar data revealed quasi-harmonic oscillation of the echo’s “central” Doppler frequency with a period of about 14 sec and a deviation of about (0.7*B) Hz, where B is the echo bandwidth, which for 4179 Toutatis was equal to 2.1 Hz and 1.9 Hz for 1992 Dec 8 and 9, respectively. ...

... Fortunately, astronomy is an exception in this regard. ... As commercial databases have been described in detail before (see e.g. Watson 1991), this chapter will concentrate on Library information services that require neither an account nor a password and do not charge fees according to the connecting time or the number of data sets that are displayed or downloaded. ... American Astronomical Society (AAS) . Astronomical Observatory Trieste (OAT) library . ... Center for Astrophysics library . ...

Find Similar Abstracts . ... 26, Jan. 1983, p. 77-83. ... CAUSTICS (OPTICS), COSMOLOGY, PARTICLE MOTION, GEOMETRICAL OPTICS, GRAVITATIONAL EFFECTS, UNIVERSE . ... The analogy between caustics in geometrical optics and the singularities that arise in irrotational flows in a cold collisionless medium is discussed. ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

ПЕРЕЛ?К ПУБЛ?КАЦ?Й СП?ВРОБ?ТНИК?В ГАО . ... Pavlenko Ya.V. Ivanyuk O. The Models of MgH Lines in Arcturus Atmosphere. 15th Young Scientists Conference (YSC'15) on Astronomy and Space Physics, Kyiv, Ukraine, Apr.14-19, 2008: Abstracts. 2008 . ... 2008 . ... Workshop "Polarization with Emphasis on Cometary Observations", Paris, France, Apr. 10- 12, 2001. 2001 . ... Proc. XXVI GA EGS, Nice, France, March 25-30, 2001 ( CD-versin, V.3) . ... ВАК-2001 , С.-Петербург, 6-12 авг. 2001 г.- СПб. 2001 . ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

... 2006 . ... Comparison of total ozone distribution in the high latitudes of both hemispheres SCAR XXIX Open Science Conference, 2006, 12-14 July, Hobart, Australia - Abstract Volume. ... Analyses of spectra, stability and eigenmode transverse small-scale oscillations in the inner Earth magnetosphere. 6th Open Conference of Space Projects Evpatoriya, September 2006, Abstracts . ... Ps6 pulsations in the Earth magnetosphere. 5th Open Conference of Space Projects Evpatoriya, September 2005, Abstracts . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Le monde entier regarde V†йnus passer devant le Soleil . ... Hier soir, †а New York, les curieux scrutaient le ciel dans l'espoir qu'une †йclaircie leur laisse entrevoir V†йnus devant le Soleil. ... Transit et Soleil de minuit . ...