Results 71 to 80 of about 75,532 (195)

Asteroids discovered in the Baldone Observatory between 2017 and 2022: The orbits of asteroid 428694 Saule and 330836 Orius

Open Astronomy
We 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, Černis Kazimieras, Eglitis Ilgmar   +2 more
doaj   +1 more source

THE RE-PROCESSING RESULTS OF PHOTOGRAPHIC OBSERVATIONS OF ASTEROIDS WITH GAIA CATALOG AT THE MAO NAS OF UKRAINE

Odessa Astronomical Publications, 2019
In total, about 4,500 asteroid po-sitions were determined from photographic observations conducted at the MAO NAS of Ukraine in 1952-1996. These are the early positions of the selected minor planets, mostly bright, the observations of which were ...
S V. Shatokhina, L. V. Kazantseva, V. M. Andruk   +2 more
doaj   +1 more source

L3 Dynamics and Poincaré Maps in the Restricted Full Three Body Problem

Open Astronomy, 2012
Poincaré maps are a basic dynamical systems tool yielding information about the geometric structure of the phase space of the system. Poincaré maps are however time consuming to compute.
Pihajoki Pauli, Herrera-Sucarrat Elisabet, Palmer Phil, Roberts Mark   +3 more
doaj   +1 more source

Mean temperature of a spherical body on an elliptic orbit

Astronomy & Astrophysics
Context. The accurate determination of thermal accelerations acting on small bodies orbiting the Sun requires knowing the surface temperature at any moment. In analytical methods, the computation of the temperature is often simplified by assuming that it
Paoli R., Mochi M., Vokrouhlický D.
doaj   +1 more source

Regions of Dynamical Stability for Discs and Planets in Binary Stars of the Solar Neighborhood

, 2012
Using the results of Pichardo \et (2005,2008), we determine regions of dynamical stability where planets (or discs in general) could survive in stable orbits around binary stellar systems.
Aguilar, Luis, Jaime, Luisa G., Pichardo, Barbara   +2 more
core   +1 more source

How many Earth-approaching asteroids are there? [PDF]

The discovery process of Earth-approaching asteroids is formulated as a periodic sampling problem from an urn with replacement. It presumes as unchanging number of such objects over recent historical times, a fixed limiting magnitude/angular speed ...
Taff, L. G.
core   +1 more source

Near-infrared colors of minor planets recovered from VISTA - VHS survey (MOVIS)

, 2016
The Sloan Digital Sky Survey (SDSS) and Wide-field Infrared Survey Explorer (WISE) provide information about the surface composition of about 100,000 minor planets.
de Leon, J., Gonzalez-Solares, E., Irwin, M., Licandro, J., McMahon, R. G., Morate, D., Nedelcu, D. A., Popescu, M., Rebolo, R.   +8 more
core   +2 more sources

Asteroid modelling by starlight diffraction: The shape of Dimorphos, the satellite of (65803) Didymos

Astronomy & Astrophysics
Context. The DART spacecraft impacted Dimorphos, the satellite of (65803) Didymos, in September 2022. Evidence of crater formation and possible global reshaping has been obtained indirectly from spacecraft and ground-based data. Aims.
Tanga P., Tsiganis K., Souami D., Anderson R., Barbotin E., Cazaux A., Colas F., Hanuš J., Marchis F., Dauvergne J-L., Langin G., Leroy A., Lott B., Manna A., Rousselot L., Siakas A., Sposetti S., Vigna Ch., Weber F., Wünche A.   +19 more
doaj   +1 more source

Infrared Signatures of Disrupted Minor Planets at White Dwarfs

, 2009
Spitzer Space Observatory IRAC and MIPS photometric observations are presented for 20 white dwarfs with T < 20,000 K and metal-contaminated photospheres.
B. Zuckerman, Becklin, Brinkworth, Chen, Chiang, Dahn, Debes, Debes, Desharnais, Dufour, Farihi, Farihi, Farihi, Farihi, Farihi, Fazio, Fixsen, Friedrich, Friedrich, Giclas, Gänsicke, Gänsicke, Hansen, Hoard, Holberg, Holberg, Holberg, Ida, J. Farihi, Jura, Jura, Jura, Jura, Jura, Jura, Kawka, Kawka, Kilic, Kilic, Kilic, Kilic, Lepine, Liebert, Liebert, M. Jura, Marleau, McCook, McCook, Monet, Mullally, Napiwotzki, Perryman, Reach, Rieke, Salim, Skrutskie, von Hippel, Vrba, Zuckerman, Zuckerman, Zuckerman   +60 more
core   +1 more source

Planetesimal Scattering Efficiency of Cold Giant Planet Architectures

The Astronomical Journal
The discovery of many exoplanets has revealed an incredible diversity of orbital architectures. These orbital configurations are intrinsically linked to the potential for habitable environments within the system, since the gravitational influence of the ...
Stephen R. Kane, Emma L. Miles
doaj   +1 more source