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A quasi-satellite is an object in a specific type of co-orbital configuration (1:1 orbital resonance) with a planet (or dwarf planet) where the object stays close to that planet over many orbital periods. A quasi-satellite's orbit around the Sun takes the same time as the planet's, but has a different eccentricity (usually greater), as shown in ...
Quasi-satellite diagram.png; Cuasi-satélite (diagrama).png; Quasi-satellite diagramme.png; SVG development . The SVG code is . This diagram was created with a text ...
Orbital diagram of a quasi-satellite. A quasi-satellite, such as the one shown in this diagram, moves in a prograde orbit around the Sun, with the same orbital period (which is also called a year) as the planet it accompanies, but with a different (usually greater) orbital eccentricity. It appears, when seen from the planet, to revolve around ...
Its quasi-satellite status means Kamo’oalewa’s orbit looks like it orbits our planet, even though its trajectory actually sends it around the Sun. Although the asteroid is right in our cosmic ...
The orbit of a satellite of Earth fundamentally depends on the gravity of the Earth–Moon system, whereas the orbit of a co-orbiting object would negligibly change if Earth and the Moon were suddenly removed because a quasi-satellite is orbiting the Sun on an Earth-like orbit in the vicinity of Earth.
Kamoʻoalewa orbits the Sun at a distance of 0.90–1.10 AU.Although the period as of 2022 is about 366 days, its longer-term average period is closer to 365 days. 469219 Kamoʻoalewa is a quasi-moon and not gravitationally bound to earth like a true satellite.
(See Other moons of Earth and Quasi-satellite.) Mars has two known moons , Phobos and Deimos ("fear" and "dread", after attendants of Ares , the Greek god of war, equivalent to the Roman Mars). Searches for more satellites have been unsuccessful, putting the maximum radius of any other satellites at 90 m (100 yd).
Low-eccentricity quasi-satellite orbits are highly unstable, but for moderate to high eccentricities such orbits can be stable. [2] From a co-rotating perspective the quasi-satellite appears to orbit the primary like a retrograde satellite , although at distances so large that it is not gravitationally bound to it. [ 2 ]