Results 1 to 10 of about 413 (119)
Recalculated orbits of 8 double stars [PDF]
The authors present new orbital elements for the following pairs: ADS 1227 ADS 3317, ADS 8128, ADS 8239, ADS 8242, ADS 8539, ADS 8949 and McA 61. Individual masses for these pairs are also calculated.
Olević D., Popović G., Jovanović P.
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New orbital elements of 5 interferometric double stars [PDF]
In this paper, for the first time, are presented elliptical and Thiel- Innes orbitatal elements for the following interferometric pairs: WDS 00416+2438 = WRH, WDS 03271+1845 = CHARA 10, WDS 04044+2406 = McA 13 Aa, WDS 17095+4047 = McA 45 and WDS
Olević D., Jovanović P.
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The Future of Astrometry in Space
This contribution focuses on the importance of astrometry and on its future developments. Over the centuries astrometry has greatly contributed to the advance of the knowledge of the Universe.
Antonella Vallenari
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The accuracy of stellar distances inferred purely from parallaxes degrades rapidly with distance. Proper motion measurements, when combined with some idea of typical velocities, provide independent information on stellar distances.
C. A. L. Bailer-Jones
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A first and 11 recalculated orbits of double stars [PDF]
We present the first orbit for the pair CHARA 130 as well as recalculated orbits for the following double stars: ADS 161, ADS 207, ADS 293, ADS 1393 ADS 2531, ADS 5707, ADS 6126, ADS 6532, ADS 6623, ADS 11247 and ADS 16914.
Olević D., Jovanović P.
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We present the results of an analysis of the spectra of nine so called Polaris cluster A−FV stars obtained during 2016 - 2018. Radial velocities (RV) and GAIA DR 18 parallaxes-distances for these stars allow us to determine their membership in the ...
I. A. Usenko +6 more
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Orbits of four double stars [PDF]
We present orbits of four double stars. Orbits of stars WDS 23516+4205 = ADS 17050 and WDS 18239+5848 = ADS 11336 were calculated for the first time. Orbits of double stars WDS 02022+3643 = ADS 1613 and WDS 18443+3940 = ADS 11635 were revised.
Novaković B., Todorović N.
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Distant Resolved Spectroscopic Binaries: Orbital Parallaxes Contradict Trigonometric Parallaxes
Resolved spectroscopic binaries (RSB) are the only way (besides trigonometric parallax) to determine the dynamical, hypothesis-free distances to the stars of the galaxy. Analyzing the most comprehensive up-to-date data on RSB, we found that trigonometric
Oleg Y. Malkov, Arseniy M. Sachkov
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On the Probability of the Astrometric Resolution of Spectroscopic Binaries into Components
Resolved spectroscopic binaries (RSBs) are an extremely valuable class of objects, being the only (apart from trigonometric) supplier of dynamical stellar parallaxes.
Dugasa Belay Zeleke +5 more
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New and recalculated orbital elements of 5 double stars [PDF]
In this paper are given the orbital elements for the following five double stars: ADS 674 A921, ADS 2849 A1831BC, ADS 4002 McA18Aab, c, WDS 07269+2015 = CHARA 26 and ADS 6138 A2869, corresponding astrophysical quantities (C,H) and also masses ...
Olević D., Jovanović P.
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