Results 61 to 70 of about 13,022 (190)
RESONANCES IN ASTEROID SYSTEMS
Odessa Astronomical Publications, 2016 Today the following types of resonances in the rotation of celestial bodies in the solar system are known, namely orbital, spin-orbit and spin-spin resonances.
V. Troianskyi
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Preatmospheric Detection of a Meter-sized Earth Impactor
The Planetary Science Journal, 2023 On 2020 September 18 U.S. Government (USG) sensors detected a bolide with peak bolometric magnitude of −19 over the Western Pacific. The impact was also detected by the Geostationary Lightning Mapper instrument on the GOES-17 satellite and infrasound ...
David L. Clark +5 more
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Experimental Physiology, EarlyView.Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti +6 more
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Open AstronomyWe discovered 83 asteroids at the Baldone Astrophysical Observatory (MPC code 069) in 2017–2022. We studied one of the dynamically interesting Apollo (Near Earth object) observed at the Baldone Astronomical Observatory, namely 428694 Saule (2008 OS9) and
Wlodarczyk Ireneusz +2 more
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A Simplified Ordinary Differential Equation for the Surface Temperature of Airless Bodies
Earth and Space Science, Volume 13, Issue 3, March 2026.Abstract In this work, we develop simplified surface temperature models for spherical bodies with insignificant atmospheres, able to produce a latitude/longitude temperature map that includes seasonality effects. We start from the commonly employed depth‐dependent model by Spencer et al. (1989, https://doi.org/10.1016/0019‐1035(89)90182‐6) based on the
Stefano Boccelli +2 more
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A Photometric Survey of over 200 V-type Asteroids and Their Phase-curve Analysis
The Astrophysical Journal Supplement SeriesV-type asteroids are considered to be crustal fragments of asteroid (4) Vesta and possibly of other differentiated parent bodies that once existed in the main asteroid belt.
Adrián Galád +7 more
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Asteroid spin-rate studies using large sky-field surveys
Geoscience Letters, 2017 Eight campaigns to survey asteroid rotation periods have been carried out using the intermediate Palomar Transient Factory in the past 3 years. 2780 reliable rotation periods were obtained, from which we identified two new super-fast rotators (SFRs ...
Chan-Kao Chang +7 more
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Earth and Space Science, Volume 13, Issue 3, March 2026.Abstract If a spacecraft loses contact with Earth, ground‐based observatories can collect observations to assist the recovery effort by providing information on spacecraft location and state. Optical observations converted to a light curve of spacecraft magnitude over time show the spin period and/or orientation of the spacecraft.
A. V. Steckel, B. L. Ehlmann
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Shape models and physical properties of asteroids
, 2017 Despite the large amount of high quality data generated in recent space encounters with asteroids, the majority of our knowledge about these objects comes from ground based observations.
A. Cellino +17 more
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Lightcurves, Rotation Periods, and Colors for Vera C. Rubin Observatory’s First Asteroid Discoveries
The Astrophysical Journal LettersWe present lightcurves, rotation periods, and colors for the first asteroid discoveries made with the NSF-DOE Vera C. Rubin Observatory. These are the first science results derived from the 2103 asteroid discoveries released as part of the Rubin First ...
Sarah Greenstreet +70 more
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