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Observatories Team Up to Reveal Rare Double Asteroid  5nvklj





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Observatories Team Up to Reveal Rare Double Asteroid

Dragon
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Post by Dragon Mon Jul 16, 2018 2:38 pm

New observations by three of the world‘s largest radio telescopes have revealed that an asteroid discovered last year is actually two objects, each about 3,000 feet (900 meters) in size, orbiting each other.

Near-Earth asteroid 2017 YE5 was discovered with observations provided by the Morocco Oukaimeden Sky Survey on Dec. 21, 2017, but no details about the asteroid's physical properties were known until the end of June. This is only the fourth "equal mass" binary near-Earth asteroid ever detected, consisting of two objects nearly identical in size, orbiting each other. The new observations provide the most detailed images ever obtained of this type of binary asteroid.

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Observatories Team Up to Reveal Rare Double Asteroid  334pu7m
Dragon
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Post by Dragon Mon Jul 16, 2018 2:39 pm

Observatories Team Up to Reveal Rare Double Asteroid  Pia22559-500x250
Credits: Arecibo/GBO/NSF/NASA/JPL-Caltech

Bi-static radar images of the binary asteroid 2017 YE5 from the Arecibo Observatory and the Green Bank Observatory on June 25. The observations show that the asteroid consists of two separate objects in orbit around each other.

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Observatories Team Up to Reveal Rare Double Asteroid  334pu7m
Dragon
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Post by Dragon Mon Jul 16, 2018 2:41 pm

Observatories Team Up to Reveal Rare Double Asteroid  Pia22557-436x220
Credits: GSSR/NASA/JPL-Caltech

Radar images of the binary asteroid 2017 YE5 from NASA's Goldstone Solar System Radar (GSSR). The observations, conducted on June 23, 2018, show two lobes, but do not yet show two separate objects

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Observatories Team Up to Reveal Rare Double Asteroid  334pu7m
Dragon
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Post by Dragon Mon Jul 16, 2018 2:42 pm



Three of the world's largest radio telescopes team up to show a rare double asteroid. 2017 YE5 is only the fourth binary near-Earth asteroid ever observed in which the two bodies are roughly the same size, and not touching. This video shows radar images of the pair gathered by Goldstone Solar System Radar, Arecibo Observatory and Green Bank Observatory.


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Observatories Team Up to Reveal Rare Double Asteroid  334pu7m
Cloud
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Post by Cloud Mon Jul 16, 2018 7:56 pm

Wow, isn't that strange? two of them the same size and orbiting each other.

Dragon wrote:This is only the fourth "equal mass" binary near-Earth asteroid ever detected.


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