The oldest exoplanet known yet, PSR B1620-26 b, nicknamed Methuselah, is also a pulsar planet, located 5,600 light years from Earth in the Scorpius constellation.
已知最古老的太阳系外行星是PSR B1620-26b，又名Methuselah，它也是一颗脉冲星行星，位于5600光年之外的天蝎座中。
The oldest exoplanet known yet, PSR B1620-26 b, nicknamed Methuselah, is also a pulsar planet, located 5,600 light years from Earth in the Scorpius constellation.
已知最古老的太阳系外行星是PSR B1620-26b，又名Methuselah，它也是一颗脉冲星行星，位于5600光年之外的天蝎座中。
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