Results 1 to 10 of about 211,766 (269)
Astrometric star catalogues as combination of Hipparcos/Tycho catalogues with ground-based observations [PDF]
Serbian Astronomical Journal, 2004 The successful ESA mission Hipparcos provided very precise parallaxes positions and proper motions of many stars in optical wavelength. Therefore it is a primary representation of International Celestial Reference System in this wavelength.
Vondrák J.
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Measuring chandler wobble amplitude variations using IERS EOP C04 data [PDF]
Serbian Astronomical Journal, 2023 We analyzed the Earth's long-term polar motion using the time series IERS EOP C04 (International Earth Rotation and Reference Systems Service - IERS; Earth Orientation Parameters - EOP; Combination of four (04) techniques - C04), from 1984 to ...
Damljanović G., Vasilić V.
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Observational data on Galactic supernova remnants III: The supernova remnants within l = 270°-360° [PDF]
Serbian Astronomical Journal, 2004 We have collected all the available data of Galactic supernova remnants given in the literature. The data of Galactic supernova remnants located in the Galactic longitude interval l=270°-360°in all the spectral bands are represented in this work. We have
Guseinov O.H., Ankay A., Tagieva S.O.
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The Future of Astrometry in Space
Frontiers in Astronomy and Space Sciences, 2018 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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Crossmatching of high-proper motion L, T, and Y brown dwarfs with large photometric surveys
Open Astronomy, 2023 L, T, and Y brown dwarf (BD) exploration is a topical issue. First, the transition boundary between planets and BDs is not fully understood yet. Second, there is a phenomenon called the L/T-transition.
Avdeeva Aleksandra S. +2 more
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Milton, Anon e prosódia na "Trilogia dos Gigantes" [PDF]
Pessoa Plural, 2021 Neste contributo investigam-se possíveis referências do projecto pessoano póstumo intitulado “Trilogia dos Gigantes” a partir da Biblioteca Particular de Fernando Pessoa – apresentam-se títulos que se debruçam sobre a mitologia grega e os Gigantes em ...
Filipe, Teresa, Ferrari, Patricio
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Artificial Star Test for Crowded Field CCD Photometry
Open Astronomy, 2015 A new method of performing an artificial star test (AST) for crowded field stellar CCD photometry is proposed. This AST method is superior in the cases when it is necessary to account for varying photometric quality across the study field, arising due to
Stonkutė R., Vansevičius V.
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RESULTS OF PROCESSING OF ASTRONEGATIVES WITH COMMERCIAL SCANNER
Odessa Astronomical Publications, 2014 Astrometric errors depending on the method of scanning with different spatial resolutions were studied with commercial scanner such as Epson Perfection V750 Pro.
Yu. I. Protsyuk +3 more
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Odessa Astronomical Publications, 2014 The paper discusses and illustrates the steps of basic processing of digitized image of astro negatives. Software for obtaining of a rectangular coordinates and photometric values of objects on photographic plates was created in the environment ...
Yu. I. Protsyuk +2 more
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Fernando Pessoa e os inquéritos literários [PDF]
Pessoa Plural, 2021 Fernando Pessoa foi, primeiro como crítico e, depois, como poeta com obra publicada, repetidamente solicitado para responder a “inquéritos literários”, geralmente promovidos por jornais e revistas junto dos escritores portugueses, uma moda importada de ...
Barreto, José
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