Apparent brightness measurement by JWST during Chariklo's occultation in 2022
The minor planet and centaur 10199 Chariklo, with a diameter of about 250 kilometres (160 mi), is the second-smallest celestial object with confirmed rings (with 2060 Chiron being the smallest[1]) and the fifth ringed celestial object discovered in the Solar System, after the gas giants and ice giants.[2] Orbiting Chariklo is a bright ring system consisting of two narrow and dense bands, 6–7 km (4 mi) and 2–4 km (2 mi) wide, separated by a gap of 9 kilometres (6 mi).[2][3] The rings orbit at distances of about 400 kilometres (250 mi) from the centre of Chariklo, a thousandth the distance between Earth and the Moon. The discovery was made by a team of astronomers using ten telescopes at various locations in Argentina, Brazil, Chile and Uruguay in South America during observation of a stellar occultation on 3 June 2013, and was announced on 26 March 2014.[2]
The existence of a ring system around a minor planet was unexpected because it had been thought that rings could only be stable around much more massive bodies. Ring systems around minor bodies had not previously been discovered despite the search for them through direct imaging and stellar occultation techniques.[2] Chariklo's rings should disperse over a period of at most a few million years, so either they are very young, or they are actively contained by shepherd moons with a mass comparable to that of the rings.[2][4][5] The team nicknamed the rings Oiapoque (the inner, more substantial ring) and Chuí (the outer ring), after the two rivers that form the northern and southern coastal borders of Brazil. A request for formal names will be submitted to the IAU at a later date.[4]
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centaur 10199 Chariklo, with a diameter of about 250 kilometres (160 mi), is the second-smallest celestial object with confirmed rings (with 2060 Chiron...
period of rotation. Infrared observations ofChariklo indicate the presence of water ice, which may in fact be located in its rings. Chariklo was discovered...
detect any dust rings around Pluto. 10199 Chariklo, a centaur, was the first minor planet discovered to have rings. It has two rings, perhaps due to a...
ofChariklo'srings until the 2018 observation, indicating that the same type of structure had been responsible for both. Moreover, both their rings are...
coast to coast." RingsofChariklo, one of which is named "Oiapoque" after the river. List of rivers of French Guiana List of rivers of the Americas by...
in mass to the rings. Chiron is also thought to have rings similar in form to those ofChariklo. A major gap in the large ring system of the V1400 Centauri...
confinement ofrings to the 1:3 spin-orbit resonance may be common among ringed small Solar System bodies, as it has been previously seen in Chariklo and Haumea...
known centaur, 10199 Chariklo, has a diameter of about 250 km (160 mi) and is one of the only few minor planets known to possess a ring system. Jupiter trojans...
include signs of the zodiac and classical planets. These originate from medieval Byzantine codices. Their current form is a product of the European Renaissance...
al. (2022) The equilibrium shape of (65) Cybele: primordial or relic of a large impact? "LCDB Data for (10199) Chariklo". Asteroid Lightcurve Database (LCDB)...
resonances with Saturn's inner moons give rise to gaps in the ringsof Saturn. The special case of 1:1 resonance between bodies with similar orbital radii causes...
team led by Felipe Braga Ribas discover a ring system around the minor planet and centaur Chariklo, the first of this kind ever detected. 2014 – Rosetta...
report the discovery of the first ring system around an asteroid (10199 Chariklo). 27 March The first synthetic chromosome is created for integration into...
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