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For those interested, PD7 70 is approximately 10 million years old. For reference, the Earth is around 4.5 billion.


I’m guessing that the age of the system is defined by “first light” of the star (PDS 70), since once the star lights up, the cloud around it starts evaporating.


Do you mean it's 10 million light years away from us?


No. The star (PDS 70) is 370 light-years away from us. It's age is "about 5.4 million years old" [1]

[1] http://www.syfy.com/syfywire/astronomical-birth-announcement...




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