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- Asteroid - Wikipedia
The asteroid 3122 Florence, one of the largest potentially hazardous asteroids with a diameter of 4 5 km (2 8 mi), has two moons measuring 100–300 m (330–980 ft) across, which were discovered by radar imaging during the asteroid's 2017 approach to Earth
- Orbital period - Wikipedia
The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object In astronomy, it usually applies to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars
- 307261 Máni - Wikipedia
Results from the extensively observed 8 August 2020 occultation show that Máni has a shape close to that of an oblate spheroid, with an equatorial diameter of 814 km (506 mi) and a polar diameter of up to 770 km (480 mi) [8]: 5 Máni's mean diameter is 796 km (495 mi), [8]: 5 which is between the diameters of the two largest asteroids, Ceres
- Asteroid Facts - Science@NASA
Most asteroids can be found orbiting our Sun between Mars and Jupiter within the main asteroid belt Asteroids range in size from Vesta – the largest asteroid at about 329 miles (530 kilometers) in diameter – to bodies that are less than 33 feet (10 meters) across The total mass of all the asteroids combined is less than that of Earth's Moon
- 10 Hygiea - Wikipedia
10 Hygiea is a large asteroid located in the outer main asteroid belt between the orbits of Mars and Jupiter It was the tenth known asteroid, discovered on 12 April 1849 by Italian astronomer Annibale de Gasparis at the Astronomical Observatory of Capodimonte in Naples, Italy It was named after Hygieia, the Greek goddess of health It is the fourth-largest main-belt asteroid by both volume
- Apollo asteroid - Wikipedia
Common orbital subgroups of Near-Earth Objects (NEOs) The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, discovered by German astronomer Karl Reinmuth in the 1930s They are Earth-crossing asteroids that have an orbital semi-major axis greater than that of the Earth (a > 1 AU) but perihelion distances less than the Earth's aphelion distance (q < 1 017 AU) [1][2
- Hilda asteroid - Wikipedia
The Hildas "rest" at their aphelia in the apexes for an average of 5 0–5 5 years, whereas they move along the sides more quickly, averaging 2 5 to 3 0 years The orbital periods of these asteroids are approximately 7 9 years, or two thirds that of Jupiter Although the triangle is nearly equilateral, some asymmetry exists
- 87 Sylvia - Wikipedia
87 Sylvia is one of the largest asteroids (approximately tied for 7th place, to within measurement uncertainties) It is the parent body of the Sylvia family and member of Cybele group located beyond the main asteroid belt (see minor-planet groups) Sylvia was the first asteroid known to possess more than one moon
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