Sentences with phrase «percent of the binary systems»

Not exact matches

Though our sun stands alone, about 40 percent of similar stars are in binary (two - star) or multi-star systems, orbiting their companions in a gravitational dance.

The binary interaction model where a companion star is present is gaining traction because astronomers realize that at least 70 percent of massive stars are members of double - star systems.

So far, only about 10 percent of known pulsars are believed to be part of binary systems — most of them orbiting ancient white dwarf stars.

For example, over a three - year period between 2006 and 2008, more than 98 percent of Denver Public Schools teachers received a «Satisfactory» rating in the district's binary evaluation system.

Louisiana offers one such example: under its previous binary evaluation system, 98.5 percent of teachers received a rating of «Satisfactory.»