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In planetary astronomy, a centaur is a small Solar System body that orbits the Sun between Jupiter and Neptune and crosses the orbits of one or more of the giant planets. . Centaurs generally have unstable orbits because of this; almost all their orbits have dynamic lifetimes of only a few million years, [1] but there is one known centaur, 514107 Kaʻepaokaʻawela, which may be in a stable ...
The following is a list of centaurs, a group of non-resonant small Solar System bodies whose orbit around the Sun lie typically between the orbits of Jupiter and Neptune (5 to 30 AU).
Its dry weight was 3,060 kilograms (6,750 lb) and it weighed 16,928 kilograms (37,319 lb) fully loaded. Centaur G-Prime was intended for deep space missions and was 9.0 meters (29.5 ft) long, allowing it to carry more propellant, but restricting the length of the payload to 9.3 meters (31 ft).
Many TNOs are often just assumed to have Pluto's density of 2.0 g/cm 3, but it is just as likely that they have a comet-like density of only 0.5 g/cm 3. [ 4 ] For example, if a TNO is incorrectly assumed to have a mass of 3.59 × 10 20 kg based on a radius of 350 km with a density of 2 g/cm 3 but is later discovered to have a radius of only 175 ...
5145 Pholus / ˈ f oʊ l ə s / is an eccentric centaur in the outer Solar System, approximately 180 kilometers (110 miles) in diameter, that crosses the orbit of both Saturn and Neptune. It was discovered on 9 January 1992 by American astronomer David Rabinowitz (uncredited) of UA 's Spacewatch survey at the Kitt Peak National Observatory in ...
Nessus is a centaur, a dynamically unstable population of minor planets between the classical asteroids and the trans-Neptunian objects.It orbits the Sun at a distance of 11.9–37.4 AU once every 122 years and 4 months (44,670 days; semi-major axis of 24.64 AU).
8405 Asbolus / ˈ æ z b ə l ə s / is a centaur orbiting in the outer Solar System between the orbits of Jupiter and Neptune.It was discovered on 5 April 1995, by James Scotti and Robert Jedicke of Spacewatch (credited) at Kitt Peak Observatory in Arizona, United States.
Centaurs have short dynamical lives due to strong interactions with the giant planets. Okyrhoe is estimated to have an orbital half-life of about 670 thousand years. [9] Of objects listed as a centaur by the Minor Planet Center (MPC), [4] JPL, [2] and the Deep Ecliptic Survey (DES), [3] Okyrhoe has the second smallest perihelion distance of a numbered centaur.