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Earth’s 2nd moon
March 2 , 2020
1732 days
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- Mini- moon or planet’s 2nd moon “Dubbed 2020 CD3” was discovered by NASA-funded Catalina Sky Survey in Arizona, US.
- It is an asteroid about the size of the car & its diameter is about 1.9-3.5 metre.
- The mini moon is a temporary moon, dissimilar to our permanent moon which will break free of Earth’s orbit & go off on its own way.
- This asteroid cross the Earth’s orbit & when contend with the gravitational influence of our permanent moon & sun, it will be caught in Earth’s orbit for a few years & will break free & go into independent orbit around the sun.
- This type of asteroid is termed as Temporarily Captured Object.
- This 2nd moon is captured into earth’s orbit over 3 years.
- Previously In 2006, RH120 was discovered on 14 September 2006 with 27 inches.
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