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Galactic astrometry with Gaia [PDF]
Gaia space mission of the European Space Agency was launched at the end of 2013 and will continue operations until 2025. The published data releases revolutionize the view of the Milky Way galaxy and beyond thanks to its unprecedented astrometry ...
Jordi i Nebot, Carme
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Advances in Astronomy, Volume 2026, Issue 1, 2026.This paper investigates the degradation of pointing accuracy in the Kunming 40‐m radio telescope due to long‐term equipment aging and environmental disturbances. Conventional linear pointing models are constrained by their linear modeling framework, making it difficult to accurately represent the nonlinear errors induced by temperature, wind speed, and
Yao He +3 more
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Open Astronomy, 2022 This article is devoted to the discovery of comets at the Vilnius Observatory together with the orbital analysis of dynamically interesting comets, namely 322P. We studied the orbital evolution of comet 322P with and without non-gravitational effects. It
Włodarczyk Ireneusz, Černis Kazimieras
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Improvements by Space Astrometry
, 1978 Technical note written as input to the early studies of the ESA space astrometry project ...
Lindegren, Lennart
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Uncertainties in Historic Visual Double Star Measures—III Accurate Calibration Pairs
Astronomische Nachrichten, Volume 346, Issue 10, December 2025.ABSTRACT Based on space‐based positions and proper motions, we present accurate rectilinear elements for 857 double star pairs over the celestial sphere. These elements allow for the computation of precision ephemeris Position Angles and Separations of these pairs.
Roderick R. Letchford, Graeme L. White
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An Efficient Method for Measuring the Color of a Natural Satellite with Astrometric Applications
The Astronomical JournalThe Gaia DR3 catalog released in 2022 contains precise broadband photometry for more than one billion stars in the G , BP, and RP passbands, which is very useful for calibrating the differential color refraction (DCR) effect in ground-based observations.
X. Q. Fang, Q. Y. Peng, X. Lu, B. F. Guo
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Satellites and Small Bodies With ALMA: Insights Into Solar System Formation and Evolution
AGU Advances, Volume 6, Issue 6, December 2025.Abstract Our understanding of the formation and evolution of planetary systems has made major advances in the past decade. This progress has been driven in large part by the Atacama Large Millimeter/submillimeter Array (ALMA), which has given us an unprecedented view of solar system bodies themselves, and of the structure and chemistry of forming ...
Katherine de Kleer +3 more
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Discovery of Hundreds of Main-belt Asteroids with Synthetic Tracking of WISE Data
The Planetary Science JournalWe analyze 1.5 million W3 Wide-field Infrared Survey Explorer (WISE) images acquired between 2010 January 7 and 2010 August 6 with the SALTAD synthetic tracking package to report astrometry of previously known and unknown main belt asteroids. We consider
Emerson A. Whittaker, Jean-Luc Margot
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Determination of Orbital Elements and Ephemerides using the Geocentric Laplace’s Method
Journal of Astronomy and Space Sciences, 2020 This paper presents a methodology for Initial Orbit Determination (IOD) based on a modification of the Laplace’s geocentric method. The orbital elements for Near-Earth asteroids (1864) Daedalus, 2003 GW, 2019 JA8, a Hungaria-type asteroid (4690 ...
Daniela Espitia +2 more
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Space astrometry with the Joint Milliarcsecond Astrometry Pathfinder [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractThe Joint Milliarcsecond Astrometry Pathfinder Survey (JMAPS) is a small, space-based, all sky, visible wavelength, astrometric and photometric survey mission for 0ththrough 14thI-band magnitude stars with a planned 2013 launch. The primary objective of the JMAPS mission is the generation of an astrometric star catalog with 1 milliarcsecond ...
Gregory S. Hennessy, Ralph Gaume
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