. Regularity and chaos for planetary orbits in binaries . D. Benest . Observatoire de Nice, Nice, France Abstract: . No abstract Key words: . Very Long Baseline Interferometry (VLBI), celestial mechanics, planetary orbits, regularity, chaos, binaries.

Find Similar Abstracts . ... Relativistic effect of variation in pulsar rotation on an elliptical orbit . Authors: . ... 1, Nov. 1975, p. 19-22. ... Astronomy . ... BINARY STARS, ELLIPTICAL ORBITS, PULSARS, RELATIVISTIC EFFECTS, STELLAR ROTATION, ASTRONOMICAL MODELS, COMPANION STARS, MAGNETIC EFFECTS, PERIODIC VARIATIONS . ... Use: Authors Title Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

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. ...

... The distributions of orbits eccenttricities and of angular momenta for the halo stars and the old disk population are considered. The distributions have gaps separating the halo from the disk and dividing the halo population into three groups. ... Рассмотрены распределения звезд гало и старого населения диска по величине эксцентриситета орбит и угового момента. Распределения имеют провалы, отделяющие гало от диска и делящие населения гало на три группы. ...

STScI . HST . ... Home . ... Data . ... Filters . ... LRF Data . ... Data Analysis . Data Analysis Home . ... In a joint investigation by GSFC and STScI, the Selectable Optical Filter Assembly (SOFA) of WFPC2 was extracted and the filter wheels removed and examined for any on-orbit changes. ... The data have been analyzed at STScI with a view towards understanding how prolonged exposure to the HST space environment affected the filters and what the resultant impacts are to WFPC2 calibrations. ...

... 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 . ...

XMM-Newton Science Analysis System Page: 1 orbit January 10, 2003 Abstract Create a FITS timeseries \HK-like" le from the ODF Spacecraft Reconstructed Orbit File. ... Both sets of values will be written into a standard OGIP-compliant FITS binary extension table with a TIME column value, derived from a start, stop and sampling interval time, each speci ed by the user. ... StartANDEndNotInODFRange (error) Start AND End times selected not congruent with input ODF obs times. ... 7 Output Files 1. ...

Quasi-Hilda Comet 147P/Kushida-Muramatsu: Another long temporary satellite capture by Jupiter . ... The quasi-Hilda comets (QHCs), being in unstable 3:2 Jovian mean motion resonance, are considered a major cause of temporary satellite capture (TSC) by Jupiter. ... Both these numbers rank 147P as third among long TSC/orbiter events, behind SL9 and 111P. This study also confirms the importance of the QHC region as a dynamical route into and out of Jovian TSC, via the Hill's sphere. ...

A Unique and Remarkable Binary Pulsar . ... It is the only pulsar known to be orbiting a main sequence Be star and forms the `missing link' in the evolutionary scenario of binary stars. ... Observations made around the time of closest approach of the two stars show changes in the pulsar's dispersion measure, rotation measure and fractional linear polarization on very short timescales. ... The companion star to the pulsar has been monitored at optical and UV wavelengths. ...

... Astro Space Center, Profsojuznaya 84/32, GSP-7, 117997, Moscow, Russia . ... The algorithm allows to work easily with the first and the second derivatives of a visibility function phases and amplitudes. This approach is important for high orbiting Space VLBI data processing. ... where is a measurements of the visibility function and is an approximating function. ... If is a 2-D complex function (a model), the bi-orthogonal approximation is known in VLBI as a self-calibration algorithm. ...

David P. Stern . ... Abstract . This is a systematic attempt to identify and assess near-equatorial, high-eccentricity orbits best suited for studying the Earth's magnetosphere, in particular its most dynamic part, the plasma sheet of the magnetotail. ... On the other hand, an intuitive understanding was developed of the factors which determine the merits of the mission, including long-range factors due to perturbations by the Moon, Sun and the Earth's equatorial bulge. ...

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: An interferometry study of interacting binaries . ... Science Users Information . Observing Facilities . ... Paranal Facilities . La Silla Facilities . ... Data Handling and Products . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... ESO Data Access Policy . ... ESO Science Newsletter . ... Return to list of thesis topics . ...

Abstract . A first-generation CMOS Charged Particle Spectrometer chip [1] was designed at JPL for flight on the STRV-2 spacecraft. These devices will collect electron and proton spectra in low Earth orbit as part of an experiment to demonstrate Active Pixel Sensor (APS) technology in space. This paper presents the results of total dose testing on these chips and, where possible, attempts to extend the results to other Active Pixel Sensors. ...

Proposal Identification No.: A2675 Date Received: 2011-Oct-03 17:21:24 Technical Page Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: Regular Astronomy Continuum Galactic 6 Hours 90 minutes A Search for Transient Emission from a 13-minute Detached White Dwarf Eclips- ing Binary ABSTRACT: We propose a search for time-variable radio emission from a detached white-dwarf binary with a 12.75-minute orbit. ...

... Comet Hyakutake's Orbit . ... The shape of the comet's orbit is close to a parabola. The comet has come in from the outer Solar System, will pass near the Earth in late March, and pass near the Sun in late April. Comet Hyakutake will appear bright in late March because it is so close to the Earth, and will again appear bright in late April because it is so close to the Sun. ... Публикации с ключевыми словами: comet - comet Hyakutake - orbit - комета Хиякутаке - орбита - Орбита Земли . ...

... March 14, 1996 . Comet Hyakutake's Orbit . ... The orbits of the Earth and this brightening comet are shown in the above diagram. ... The shape of the comet's orbit is close to a parabola. The comet has come in from the outer Solar System, will pass near the Earth in late March, and pass near the Sun in late April. Comet Hyakutake will appear bright in late March because it is so close to the Earth, and will again appear bright in late April because it is so close to the Sun. ...

... 1) Dipartimento di Astronomia e Scienza dello Spazio, Universit? di Firenze, Largo E. Fermi, 5, I-50125 Firenze, Italy . ... 3) Institut d'Astrophysique de Paris, CNRS, 98bis Boulevard Arago, F-75014 Paris, France . ... 5) Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 OHA, United Kingdom . 6) visiting astronomer: Institut d'Astrophysique de Paris, CNRS, 98bis Boulevard Arago, F-75014 Paris, France . ...

JOURNиES - 2014 The binary asteroid 22 Kalliope: Linus orbit determination on the basis of speckle interferometric observations Sokova I.(1), Sokov E.(1), Roschina E.(1), Rastegaev D.(2), Gorshanov D.(1), Balega Yu.( 2), Dyachenko V.(2) (1) Pulkovo Observatory; (2) Special Astrophisical Observatory Binary asteroid 22 Kalliope 22 Kalliope - M-type asteroid from the Main asteroid belt discovered by J. R. Hind on November 16, 1852 in the Bishop' Observatory (UK). ...

... V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Universitetsky 13, Moscow 119899, Russia, shev@sai.msu.ru . ... 1.Sternberg State Astronomical Institute, 119899, Moscow, Russia. shev@sai.msu.ru . ... V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Moscow 119992, Russia, shev@sai.msu.ru . ... 119992 Moscow, Russia; . ... 2Sternberg Astronomical Institute, Moscow University, Moscow, 119992, Russia, . ... Moscow, 119992, Russia shev@sai.msu.ru . ...

Subject of Astronomy. ... Celestial Sphere. ... Spherical Frames of Reference: Horisontal and Equatorial Coordinates, Ecliptical System. ... Transformation of Celestial Coordinates. ... Change of Object Coordinates as a Result of Diurnal Rotation of Celestial Sphere. Phenomenons, Which Lead to Celestial Coordinates Change. ... Motion of Equator, Ecliptic, and Their Poles. ... Diurnal Solar Motion on Different Latitudes. ... Time Equation. ... Apparent Motions and Configuration of Planets. ...