binary star
binary
double star

That means there must be a double star behind him.

I wonder if it couldn't be used to break up a double star?

She looked for a bright double star, blue and white.

In certain of the so called double stars, he, no doubt, did find a movement.

He started with his observations of double stars in 1925.

South then continued and observed another 458 double stars over the following year.

I hope to meet you here when the double star has turned one turn.

And you'll have a chance to witness the birth of a double star.

It is therefore in many ways the most interesting double star under observation.

"Head straight away from the double star," came the order in his helmet phone.