What are quasi-satellites?

Oct 21, 2021 ... ... planet orbits a star, and a moon orbits a planet. There are also moons orbiting dwarf planets (like Pluto) and even asteroids! The Moon is ... Oct 1, 2024 ... Astronomers have discovered an exoplanet orbiting Barnard's star, the closest single star to our Sun. Dec 14, 2017 ... The planet was discovered in data from NASA's Kepler Space Telescope. The newly-discovered Kepler-90i – a sizzling hot, rocky planet that orbits ... Feb 13, 2025 ... "By establishing this pattern of planet orbits, we were able to predict other orbits of planets we hadn't yet detected," says Thomas Wilson from ... The Orbital Velocities of the Planets · People are fascinated with high-speed travel. · The orbital velocity is 2πR/T where R is the average radius of the orbit ... ... planets in long period orbits is useful to identify false positives. ... We report planet occurrence as a function of planet size and orbital period ... Nov 29, 2023 ... This animation shows six “sub-Neptune” exoplanets in rhythmic orbits around their star – with a musical tone as each planet passes a line drawn through the ... Sep 16, 2011 ... 'Stunning'. Kepler-16b's two suns are smaller than ours - at 69% and 20% of the mass of our Sun - making the surface temperature an estimated - ... Feb 29, 2024 ... Astronomers have discovered three small moons at the farthest planets of our solar system — two circling Neptune and one around Uranus. Nov 18, 2015 ... An orbit is the path an object takes through space as it revolves around another object. While a planet travels in one direction, ...