Results 21 to 30 of about 231,562 (296)

Chaotic Capture of a Retrograde Moon by Venus and the Reversal of Its Spin

open access: yesUniverse, 2023
Planets are surrounded by fractal surfaces (traditionally called Hill spheres), separating the inner zones of long-term stable orbital motion of their satellites from the outer space where the gravitational pull from the Sun takes over.
Valeri V. Makarov, Alexey Goldin
doaj   +1 more source

The Chemical Composition of an Extrasolar Minor Planet

open access: yes, 2007
We report the relative abundances of 17 elements in the atmosphere of the white dwarf star GD 362, material that, very probably, was contained previously in a large asteroid or asteroids with composition similar to the Earth/Moon system. The asteroid may
B. Zuckerman   +7 more
core   +1 more source

HAT-P-6b: A Hot Jupiter transiting a bright F star [PDF]

open access: yes, 2008
In the ongoing HATNet survey we have detected a giant planet, with radius 1.33 +/- 0.06 RJup and mass 1.06 +/- 0.12 MJup, transiting the bright (V = 10.5) star GSC 03239-00992.
A. Pál   +20 more
core   +2 more sources

Observational Data and Orbits of the Asteroids Discovered at the Molėtai Observatory in 2005–2007

open access: yesOpen Astronomy, 2016
The paper presents statistics of the asteroids observed and discovered at the Molėtai Observatory, Lithuania, in 2005–2007 within the project for astrometric observations of the near-Earth objects (NEOs), the main belt asteroids and comets.
Černis K.   +2 more
doaj   +1 more source

Observational Data and Orbits of the Asteroids Discovered at the Molėtai Observatory in 2008–2009

open access: yesOpen Astronomy, 2016
We present the statistics of the asteroids observed and discovered at the Molėtai Observatory, Lithuania, in 2008–2009 within the project for astrometric observations of the near-Earth objects (NEOs), the main belt asteroids and comets.
Černis K.   +2 more
doaj   +1 more source

People Love to Name Things: Current Trends in Naming Minor Planets

open access: yesВопросы ономастики
After several introductory remarks regarding the onomastic terminology used for names of celestial objects, the article proposes a semantic and a limited formal analysis of the minor planet names officially published in 2022 by the International ...
Jan Holeš
doaj   +1 more source

Observational Data and Orbits of the Asteroids Discovered at the Baldone Observatory in 2008–2013

open access: yesOpen Astronomy, 2015
The paper presents statistics of the asteroids observed and discovered at the Baldone Observatory, Latvia, in 2008–2013 within the project for astrometric observations of the near-Earth objects (NEOs), the main belt asteroids and comets. CCD observations
Černis K., Wlodarczyk I., Eglitis I.
doaj   +1 more source

Early Planet Formation in Embedded Disks (eDisk). III. A First High-resolution View of Submillimeter Continuum and Molecular Line Emission toward the Class 0 Protostar L1527 IRS

open access: yesThe Astrophysical Journal, 2023
Studying the physical and chemical conditions of young embedded disks is crucial to constrain the initial conditions for planet formation. Here we present Atacama Large Millimeter/submillimeter Array observations of dust continuum at ∼0.″06 (8 au ...
Merel L. R. van ’t Hoff   +27 more
doaj   +1 more source

The PTF Orion Project: a Possible Planet Transiting a T-Tauri Star [PDF]

open access: yes, 2012
We report observations of a possible young transiting planet orbiting a previously known weak-lined T-Tauri star in the 7-10 Myr old Orion-OB1a/25-Ori region. The candidate was found as part of the Palomar Transient Factory (PTF) Orion project.
Agüeros   +78 more
core   +3 more sources

The Statistical Analysis of Exoplanet and Host Stars Based on Multi-Satellite Data Observations

open access: yesUniverse
In recent years, the rapid development of exoplanet research has provided us with an opportunity to better understand planetary systems in the universe and to search for signs of life.
Yanke Tang   +7 more
doaj   +1 more source

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