... 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. ...

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 ...

... Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: Regular Planetary Radar Solar System 7.25 Hours 3.5 hours Arecibo Radar Orbit Refinement of Near-Earth Asteroid 99942 Apophis in June of 2013 ABSTRACT: We propose radar observations of near-Earth asteroid 99942 Apophis in June of 2013 to further refine its orbit and to facilitate future detection of the Yarkovsky effect, which would help provide an estimate of the asteroid's mass. ...

. 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.

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. ...

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. ...

... Астронет | ... 00: From astrometry Han et al (2000) claim a preliminary mass of 10 M J and inclination of 155.5 o for the planet d. Circumstellar disk searched for at UKIRT and KECK but not found (Trilling et al. ... Discretizing ups-Andromedae planetary system. preprint . ... The Planetary System of Upsilon Andromedae. ... Time history of the planetary system of Upsilon Andromedae. in EGS XXV General Assembly, Nice, France, April 2000 PS10.Extra-solar planets and planet formation. abstract (pdf) . ...

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? ...

... Future seminars . P a s t seminars . Seminar council . Extrarasolar planetary systems: regularities are found out " . Leonid Ksanfomaliti (IKI) . ... The discovery in 1995 of the first extrasolar giant planet (51 Peg b) initiated the physics of extrasolar planetary systems. ... Metallicity has become an indicator of the possible presence of planetary systems and, probably, even determines the type of planets. ...

. XMM-Newton Science Analysis System . orbit (orbit-2.9) [xmmsas_20080701_1801-8.0.0] . Meta Index . Create a FITS timeseries ``HK-like'' file from the ODF Spacecraft Reconstructed Orbit File. Instruments/Modes . Use . Description . Detailed Description . Parameters . Errors . Input Files . Output Files . Algorithm . Comments . Future developments . Bibliography . Index . XMM-Newton SOC/SSC -- 2008-07-01

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. ...

Find Similar Abstracts (with default settings below ) . ... Translate Abstract . ... Speckle Measurements with the New Camera of the Astronomical Observatory R. M. Aller . ... Astronomische Gesellschaft Abstract Series, Vol. ... 18JD309D A brief description of the new speckle camera developed by the Astronomical Observatory Ram n Mar a Aller of the University of Santiago de Compostela (Spain) in cooperation with the Special Astrophysical Observatory (Russia) is presented. ... Abstract Text . ...

. Computer Ephemeris. Elements of osculating planetary orbits. Explanations. Each row contains at 0h of Time Dynamical Terrestrial of specified date in system of mean equator and ecliptic J2000.0 the ecliptic osculating elements of heliocentric orbit: inclination of orbital plane (degrees), longitude of ascending node (degrees), argument of perigelion (degrees), semimajor axis (astronomical units), mean motion (degrees per day), eccentricity (dimensionless), mean anomaly (degrees).

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Planets . ... This bizarrely shrunken planetary system was found by NASAтАЩs Kepler mission, hence the parent star has been named Kepler-11. ... Planetary scientist and Kepler science team member Jack Lissauer said ?These six planets are mixtures of rock and gases, possibly including water.тАЭ €аNone of these strange new worlds are likely to be home to any form of life; their surface conditions are simply too extreme. ...

University Satellites and . Space Science Education . ... The project of the scientific - educational small satellite for research of Earth upper atmosphere density . ... At the end of 80th years in Kuybishev aviation institute (nowadays the Samara State Aerospace University) has been developed the project of small spherical satellite " PION ", intended as for a calibration of ground resources of tracing behind space objects, and for refinement of density of upper atmosphere of the Earth. ...

... 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. ...

... Programme . ... Abstract: Planetary nebulae constitute a unique source of light element abundances for individual stars in a distant stellar population. Multi-slit spectra of 50 planetary nebulae (PN) in NGC 5128 have been observed with the ESO VLT and FORS1 spectrometer. The planetary nebulae were observed in three fields covering a range of galactic radii from 2 to 19 kpc. The emission line spectra have been analysed for light element abundances (He, O, N, Ne, S, Ar). ...

Find Similar Abstracts (with default settings below ) . Citations to the Article (4355) . Refereed Citations to the Article . Library Entry . Also-Read Articles . Translate Abstract . ... Authors: . ... Bibtex entry for this abstract Preferred format for this abstract (see Preferences) . ... Keywords (in text query field) . ... Query Results . ... Query Form . ... Smithsonian/NASA ADS Homepage | ADS Sitemap | ...

Russian Military Space Activity . r The experts in space and rocketry field as well as ones interested in the Russian cosmonautics know quite a well The Military Aspects of the Soviet Cosmonautics book by Maxim Tarasenko published in 1992. This book still is an unique independent Russian research in the military space programs' field. ... Instead, as a result of the author's many years efforts, The Russian Military Space Activities book manuscript was practically finished early in 1999. ...

... 13 1000000000 2500000000 2000000000 500000000 1500000000 0 -1500000000 -1000000000 -500000000 0 500000000 1000000000 1500000000 1000000000 500000000 -500000000 0 -1500000000 -1000000000 -500000000 -1000000000 -500000000 0 500000000 1000000000 1500000000 -1500000000 -1000000000 2500000000 2000000000 1500000000 1000000000 500000000 0 -2000000000 -1500000000 -1000000000 -500000000 0 500000000 1000000000 -500000000 -1000000000 . ... 2012. ... URL: http://www.asc.rssi.ru/millimetron/millim.htm 8. ...