What is the supermassive black hole at the center of our galaxy, and what orbits it?

Since the Earth orbits the Sun, you're actually in orbit right now! Many planets, like Earth, have moons that orbit them. A satellite can also be man-made, like ... ... orbital radius, around planets with the same mass, will have the same orbital speed. Remember that this relationship only applies in the case of circular orbits ... We find that many orbits between Uranus and Neptune and most orbits between Jupiter and Saturn become planet-crossing and hence unstable within the age of the ... Apr 30, 2021 ... (Since normal exoplanet techniques, like transiting, require multiple detections over many orbital periods, exoplanets with large orbits take ... Mar 2, 2023 ... We explore the dynamics of horseshoe constellations, and show that they can remain stable for billions of years and even persist through their stars' post-main ... Jul 7, 2009 ... While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. 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 ... Apr 20, 2023 ... Below is an animation of a planet like Earth orbiting a star like the Sun. The “inertial frame” (left panel) shows what this system would look ... Nov 30, 2017 ... Because of this property, satellites in GEO are constantly in the field of view for approximately one-third the planet's surface. While about 55 ... Nov 19, 2015 ... There's life on the planet, maybe even intelligent life. Orbiting this planet is a dwarf star. It is sufficiently close to the planet to provide ...