Results 51 to 60 of about 75,532 (195)

The Potentially Hazardous Asteroid 2000 SG344

open access: yesOpen Astronomy, 2016
We computed impact solutions for the potentially dangerous asteroid 2000 SG344, based on 31 optical observations from 1999 May 15.20482 UTC to 2010 October 29 03.60723 UTC.
Wlodarczyk I.
doaj   +1 more source

The dynamically hazardous asteroid 2025 TV10

open access: yesAstronomy & Astrophysics
Context. Twenty co-orbital asteroids of Venus are currently known, several of which may evolve into potentially hazardous asteroids (PHAs) over timescales of thousands of years. Aims.
Carruba V., Sfair R., Winter O. C.
doaj   +1 more source

Precise CCD astrometric observations of minor planets and comets at the Belgrade observatory during 1997 [PDF]

open access: yesSerbian Astronomical Journal, 1998
73 precise astrometric positions of seven comets and two minor planets from MPC critical list - 1093 Freda and 4954 Eric - were obtained with the CCD equipped Askania astrograph (13.5/160) of Belgrade Astronomical Observatory.
Protitch-Benishek V., Benishek Vl.
doaj   +1 more source

Thermal Model Calibration for Minor Planets Observed with Wide-Field Infrared Survey Explorer/Neowise [PDF]

open access: yes, 2011
With the Wide-field Infrared Survey Explorer (WISE), we have observed over 157,000 minor planets. Included in these are a number of near-Earth objects, main-belt asteroids, and irregular satellites which have well measured physical properties (via radar ...
Bauer, J.   +9 more
core   +1 more source

Apophis source population and Earth encounter frequency of Apophis-like bodies

open access: yesAstronomy & Astrophysics
Context. Asteroid (99942) Apophis will safely pass by the Earth in April 2029. This extraordinary event will be observable by the naked eye from Africa and western Europe. Aims.
Brož M.   +6 more
doaj   +1 more source

On the Transit Potential of the Planet Orbiting iota Draconis [PDF]

open access: yes, 2010
Most of the known transiting exoplanets are in short-period orbits, largely due to the bias inherent in detecting planets through the transit technique. However, the eccentricity distribution of the known radial velocity planets results in many of those ...
Bergmann, Christoph   +6 more
core   +3 more sources

Quantifying the Contamination of TESS Ecliptic-plane Light Curves by Minor Planets

open access: yesThe Astronomical Journal
Though missions devoted to time series photometry focus primarily on targets far beyond the solar system, their observations can be contaminated by foreground minor planets, especially near the ecliptic plane, where solar system objects are most ...
Ben Cassese   +8 more
doaj   +1 more source

Integrated photogrammetry and photoclinometry for enhanced 3D surface reconstruction of asteroids

open access: yesAstronomy & Astrophysics
Stereo photogrammetry (SPG) and stereo photoclinometry (SPC) are the main techniques used in the 3D surface reconstruction of asteroids. The SPG approach retrieves accurate 3D geometry with limited spatial resolution, while SPC extracts fine-scale ...
Li Hongliang   +8 more
doaj   +1 more source

DIGITAL ARCHIVE OF UKRVO: THE POSITIONAL ACCURACY OF MINOR PLANETS DETERMINATIONS

open access: yesOdessa Astronomical Publications, 2013
Scanning and astrometric processing of two 30x30 cm photographic plates with images of minor planets were conducted. The plates were obtained at the double wide-angle astrograph (DWAA, 400/2000) on the program of photographic sky survey and the program ...
V. Golovnya, V. Andruk
doaj   +1 more source

Study of ephemeris accuracy of the minor planets [PDF]

open access: yes
The current state of minor planet ephemerides was assessed, and the means for providing and updating these emphemerides for use by both the mission planner and the astronomer were developed.
Brooks, D. R., Cunningham, L. E.
core   +1 more source

Home - About - Disclaimer - Privacy