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First Ring System Around Asteroid

asteroids rings chariklo (10199) chariklo occultation centaurs

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#1    Waspie_Dwarf

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Posted 27 March 2014 - 11:52 AM

First Ring System Around Asteroid
Chariklo found to have two rings


www.eso.org said:

Observations at many sites in South America, including ESO’s La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System — after the much larger planets Jupiter, Saturn, Uranus and Neptune — to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris. The new results are published online in the journal Nature on 26 March 2014.

The rings of Saturn are one of the most spectacular sights in the sky, and less prominent rings have also been found around the other giant planets. Despite many careful searches, no rings had been found around smaller objects orbiting the Sun in the Solar System. Now observations of the distant minor planet (10199) Chariklo as it passed in front of a star have shown that this object too is surrounded by two fine rings.

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"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#2    Waspie_Dwarf

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Posted 27 March 2014 - 11:54 AM


First Ring System Around Asteroid

This ESOcast shows how observations at many sites in South America, including ESO's La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System — after the much larger planets Jupiter, Saturn, Uranus and Neptune — to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris.

Credit: ESO

Source: ESO Observatory

Edited by Waspie_Dwarf, 27 March 2014 - 12:21 PM.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#3    Waspie_Dwarf

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Posted 27 March 2014 - 11:57 AM


Artist's impression of ring system around asteroid Chariklo

Observations at many sites in South America, including ESO’s La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System - after the much larger planets Jupiter, Saturn, Uranus and Neptune - to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris.

This artist's impression shows how the ring system may look from close-up.

Credit: ESO/L. Calçada/M. Kornmesser

Source: ESO Observatory

Edited by Waspie_Dwarf, 27 March 2014 - 12:21 PM.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#4    Waspie_Dwarf

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Posted 27 March 2014 - 11:59 AM


Artist's impression of ring system around asteroid Chariklo

Observations at many sites in South America, including ESO's La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System - after the much larger planets Jupiter, Saturn, Uranus and Neptune — to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris.

This artist's impression shows how the ring system may look from close-up.

Credit: ESO/L. Calçada/M. Kornmesser

Source: ESO Observatory

Edited by Waspie_Dwarf, 27 March 2014 - 12:19 PM.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#5    Waspie_Dwarf

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Posted 27 March 2014 - 12:03 PM


Artist's impression of ring system around asteroid Chariklo

Observations at many sites in South America, including ESO’s La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System — after the much larger planets Jupiter, Saturn, Uranus and Neptune — to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris.

This artist's impression shows how the ring system may look from close-up.

Credit: ESO/L. Calçada/M. Kornmesser

Source: ESO Observatory

Edited by Waspie_Dwarf, 27 March 2014 - 12:17 PM.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#6    Waspie_Dwarf

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Posted 27 March 2014 - 12:05 PM


Observations of the occultation of asteroid Chariklo

This video shows what happened when the asteroid Chariklo passed in front of a star. As well as the expected drop in brightness when the asteroid blocked the light of the star two smaller dips were seen, before and afterwards, caused by the presence of a double ring.

Credit: ESO/Felipe Braga Ribas/M. Kornmesser

Source: ESO Observatory

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#7    Waspie_Dwarf

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Posted 27 March 2014 - 12:09 PM


Artist's impression of ring system around asteroid Chariklo

Observations at many sites in South America, including ESO’s La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System — after the much larger planets Jupiter, Saturn, Uranus and Neptune - to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris.

This artist's impression shows how the ring system may look from close-up.

Credit: ESO/L. Calçada

Source: ESO Observatory

Edited by Waspie_Dwarf, 27 March 2014 - 12:16 PM.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#8    Waspie_Dwarf

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Posted 27 March 2014 - 12:14 PM


Animation of the outer Solar System and orbits of Centaurs

This animation shows the motions of bodies in the outer Solar System. Objects in long-term unstable orbits in this region are known as Centaurs and the largest Centaur is Chariklo, the first small body to be found to have a ring.

Credit: ESO/L. Calçada

Source: ESO Observatory

Edited by Waspie_Dwarf, 27 March 2014 - 12:14 PM.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#9    maximusnow

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Posted 28 March 2014 - 01:08 PM

I can hear it now, Girl, Just cause you got a ring dont mean nothin! Your man done come up to me just last week.


#10    Merc14

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Posted 28 March 2014 - 02:28 PM

So would the moon be orbiting between the rings having cleaned out that central corridor?

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#11    ancient astronaut

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Posted 28 March 2014 - 03:28 PM

Science kicks ass!!!!!!!!


#12    taniwha

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Posted 28 March 2014 - 08:07 PM

View PostMerc14, on 28 March 2014 - 02:28 PM, said:

So would the moon be orbiting between the rings having cleaned out that central corridor?

How come there is no evidence of the moon in the occultation data?

View PostWaspie_Dwarf, on 27 March 2014 - 12:05 PM, said:


Observations of the occultation of asteroid Chariklo

This video shows what happened when the asteroid Chariklo passed in front of a star. As well as the expected drop in brightness when the asteroid blocked the light of the star two smaller dips were seen, before and afterwards, caused by the presence of a double ring.

Credit: ESO/Felipe Braga Ribas/M. Kornmesser

Source: ESO Observatory



#13    Waspie_Dwarf

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Posted 28 March 2014 - 09:48 PM

View Posttaniwha, on 28 March 2014 - 08:07 PM, said:

How come there is no evidence of the moon in the occultation data?
Because moons orbit around their primary, in other words they are constantly moving. The chances of a small moon being in exactly the correct point in it's orbit to occult the star are quite low.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#14    toast

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Posted 28 March 2014 - 09:52 PM

Astronomy is the best cinema you can get. Period.

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#15    taniwha

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Posted 28 March 2014 - 10:36 PM

View PostWaspie_Dwarf, on 28 March 2014 - 09:48 PM, said:


Because moons orbit around their primary, in other words they are constantly moving. The chances of a small moon being in exactly the correct point in it's orbit to occult the star are quite low.

Thats not conclusive evidence of rings.  The asteroid may have two or more moons that happened to be in the correct spatial alignment at the right time. Just saying.






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