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We can trace the orbit.And here is what the traced orbit, the orbital-- this is basically one of the parameters of the binary orbit, the shift of the periastron.And you can see that it changes over time as the years tick away, and this line that's drawn through here
Listen to native speakers pronounce “periastron” in real conversational contexts with synchronized timestamps and subtitles.
That point, in the real or apparent orbit of one star revolving around another, at which the former is nearest to the latter.
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