Sentences with phrase «orbit around the star because»

In a fourth type, the spectroscopic binary, a star is known to be in orbit around another star because the lines in its spectrum alternately show motion of approach and recession.

Not exact matches

Because this scenario depends on the presence of nearby stars, we expect DCBHs to typically form in satellite galaxies that orbit around larger parent galaxies where Population III stars have already formed.
The theory goes that before exploding, the progenitor star has its hydrogen outer coat stolen by a companion star in orbit around it, but astronomers have never before been able to spot the thieving companion because the supernova is so bright.
Because the planets are in such close orbits around TRAPPIST - 1, some or all of them may be tidally locked, which means that they always present the same side to the star and the opposite side away from the star.
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